#FeedSafety – Vprint Infotech https://www.vprintinfotech.com Magazine Wed, 01 Jul 2026 13:05:56 +0000 en-US hourly 1 https://wordpress.org/?v=6.9.4 https://www.vprintinfotech.com/wp-content/uploads/2023/08/logo-feb-150x150.jpg #FeedSafety – Vprint Infotech https://www.vprintinfotech.com 32 32 Where Science Meets Performance: A Visit to DOVOY – Ricky Thaper https://www.vprintinfotech.com/where-science-meets-performance-a-visit-to-dovoy-ricky-thaper/ Wed, 01 Jul 2026 12:17:16 +0000 https://www.vprintinfotech.com/?p=7759

 

It was a pleasure to visit the Gurgaon office of Dovoy Chemicals India Pvt. Ltd., a biotechnology-driven company that has been delivering innovative solutions to industries worldwide. With a strong presence across Asia, Africa, and the Middle East, Dovoy has established itself as a trusted partner in animal health, nutrition, grain processing, food ingredients, and industrial solutions.

During my visit, I had the opportunity to interact with Mr. Amit Kaushik, Director, Dovoy Chemicals India Pvt. Ltd.; Mr. Duttle Bing, General Manager – ASPAC & EMEA, Dovoy Inc. Singapore; Dr. Vipul Gohel, Director, MIV Biosolutions and Channel Partner for Dovoy; Mr. Anand Singh, Business Head – Animal Health; Dr. Sumit Raja, Technical Manager – Animal Health; Mr. Shyam Sunder Sharma, Business Head – DGP; Ms. Dhanashri Shitole, Zonal Sales Manager-South & Maharashtra and Ms. Akanksha Sethi, Dovoy.
Mr. Amit Kaushik highlighted that what truly differentiates Dovoy is its unwavering commitment to innovation, research, and quality. The company operates advanced ISO 17025:2017 accredited laboratories where product development, quality assurance, enzyme assays, thermostability testing, and customized solution development are carried out to meet the evolving needs of modern industries.


Mr. Kaushik further emphasized that Dovoy’s vision extends beyond supplying products. The company is focused on delivering holistic solutions and value-added services to customers. Complimentary amino acid profiling services, supported by their ISO 17025:2017 accredited laboratory, provide customers with greater confidence in feed quality and nutritional accuracy. Dovoy’s state-of-the-art laboratory is equipped with sophisticated technologies including the Agilent HPLC 1260, advanced spectrophotometers, Kjeldahl Distillation systems, Class-II Biosafety facilities, biodigesters, and Neogen Raptor platforms. These capabilities support quality assurance and the development of innovative biotechnology solutions across multiple sectors.

According to Mr. Shyam Sunder Sharma, Dovoy’s expertise in proximate analysis, protease enzyme thermostability testing, aflatoxin reduction solutions, microbial load analysis, amino acid profiling, and advanced enzyme assay testing provides a significant competitive edge. The company adheres to globally recognized standards including ISO, GMP, REACH, Halal, FSSAI, Kosher, ZDHC, and D&B certifications.

In the Animal Health & Nutrition sector, Dovoy offers a comprehensive portfolio of feed additive solutions including enzymes, organic trace minerals, yeast-based products, antioxidants, immune modulators, gut health solutions, toxin binders, acidifiers, and lipid metabolism enhancers. These technologies are designed to improve nutrient utilization, gut health, productivity, and overall farm profitability, as shared by Mr. Anand Singh and Dr. Sumit Raja.



The visit was followed by an engaging podcast hosted by Ms. Dhanashri Shitole and Ms. Akanksha Sethi, where I shared my thoughts on the “Future of the Indian Poultry Feed Industry.” I look forward to its release of this Podcast in the coming days.

The visit provided valuable insights into how biotechnology, innovation, and scientific excellence are shaping the future of animal nutrition and sustainable livestock production. It was inspiring to witness Dovoy’s commitment to developing practical, performance-oriented solutions backed by robust research and field validation.

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Nanovet Nutrition Pvt. Ltd. Announces Strategic Collaboration with nu.ance Biotechnology, Switzerland https://www.vprintinfotech.com/nanovet-nutrition-pvt-ltd-announces-strategic-collaboration-with-nu-ance-biotechnology-switzerland/ Wed, 18 Mar 2026 09:14:22 +0000 https://www.vprintinfotech.com/?p=7594 Nanovet Nutrition Pvt. Ltd. Announces Strategic
Collaboration with nu.ance Biotechnology, Switzerland



Launch of Advanced Mycotoxin Management Solutions – Antox Plus & Antox Precise
Nanovet Nutrition Pvt. Ltd., a fast-growing and innovation-driven animal nutrition company in India, proudly announces its strategic collaboration with nu.ance Biotechnology, Switzerland, a global leader in science-backed mycotoxins management solutions. This partnership marks a significant milestone in Nanovet’s journey to bring globally validated, high-performance nutritional technologies to the Indian poultry industry.

As part of this collaboration, Nanovet Nutrition has introduced two advanced toxin-management solutions to the Indian market—Antox Plus and Antox Precise.

Antox Plus offers comprehensive protection by targeting Mycotoxins, Endotoxins, and Chemical toxins, addressing the broader spectrum of feed-borne challenges.

Antox Precise is a highly selective solution dedicated exclusively to mycotoxin management, ensuring precise binding without compromising essential nutrients.

Together, these innovations strengthen feed safety, support animal health and performance, and enhance profitability for farmers and integrators.

Successful Multi-City Launch Events Across India
To mark the official launch of Antox Plus and Antox Precise, Nanovet Nutrition successfully conducted a series of launch events across three strategic poultry hubs in North India. These events witnessed enthusiastic participation from poultry farmers, integrators, veterinarians, consultants, distributors, and industry professionals.
Launch Event Details
· 15th December – Karnal
Venue: Vivaan Hotel, Karnal
· 17th December – Pathankot
Venue: Zone by The Park, Pathankot
· 19th December – Lucknow
Venue: Holiday Inn, Lucknow

Each event served as a dedicated knowledge-sharing platform focusing on Mycotoxin, Endotoxin and Chemical toxin risk management, field challenges, and innovative nutritional interventions aligned with Indian feeding practices.

Strong Technical Leadership & Global Expertise
The launch programs were successfully conducted by the Nanovet Nutrition team, led by experienced technical and commercial professionals who shared valuable insights on Toxins prevalence, impact on poultry performance, and the scientific advantages of Antox Plus and Antox Precise.

Nanovet Nutrition Team
· Dr. Deepak Singh – Technical Director
· Dr. Karthiga Kesavan– Product Manager
· Deepak Solanki- Regional Sales Manager-North
· Dr. Anirudh Ahlawat- Technical Service Manager- North
· Dedicated regional sales team members

nu.ance Biotechnology Team
· Dr. David Harrington – Chief Product Officer
· Mr. J. S. Uppal – Business Director, South Asia
Their presence reinforced the strength of the collaboration and highlighted nu.ance’s commitment to supporting Indian poultry producers with proven, research-driven solutions.

Antox Plus & Antox Precise – Science That Delivers Results

Antox Plus and Antox Precise are formulated using advanced adsorption and biotransformation technologies, developed through extensive global research and validated under diverse field conditions.

Key benefits include:
· Broad-spectrum Mycotoxins, Endotoxins and Chemical Toxins binder.
· Improved gut health and nutrient utilization.
· Enhanced flock performance and consistency.
· Reduced economic losses linked to mycotoxins.
These products are specifically adapted to Indian raw material variability, making them reliable solutions for modern poultry challenges.

Strengthening Nanovet’s Commitment to the Indian Poultry Industry
The successful execution of the multi-city launch events reflects Nanovet Nutrition’s strong field connect, technical capability, and commitment to delivering value-driven solutions. The collaboration with nu.ance Biotechnology further strengthens Nanovet’s product portfolio and reinforces its position as a trusted partner for poultry producers across India.

Nanovet Nutrition continues to focus on innovation, quality, and farmer-centric solutions, bridging global science with local expertise to support sustainable and profitable animal production.

Nanovet Nutrition Pvt. Ltd. – Turning Ideas into Innovations.

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Moisture Thresholds in Poultry Feed: A Global Perspective on Safety, Microbial Risk, and Performance https://www.vprintinfotech.com/moisture-thresholds-in-poultry-feed-a-global-perspective-on-safety-microbial-risk-and-performance/ Mon, 11 Aug 2025 06:52:40 +0000 https://www.vprintinfotech.com/?p=7196
1. Introduction

Ensuring the quality and safety of poultry feed is essential for maintaining the health, productivity, and overall welfare of poultry flocks. Among the various factors affecting feed hygiene, moisture content stands out as a critical determinant. Elevated moisture levels in feed create ideal conditions for the proliferation of molds, bacteria, and other microorganisms. This not only leads to feed spoilage and mycotoxin contamination but also contributes to serious health challenges in poultry, resulting in increased disease outbreaks, reduced performance, and significant economic losses for producers. Effective moisture management is therefore not merely a technical consideration but a fundamental aspect of biosecurity and food safety protocols throughout the poultry production chain. This paper explores the pivotal role of moisture in microbial proliferation and feed safety, examines its implications for poultry health, and presents recommended strategies for moisture control during feed production and storage.

1.Moisture and Microbial Proliferation
Water Activity (aw): Microbial proliferation, particularly of fungi and bacteria, is predominantly influenced by water activity rather than total moisture content. Most spoilage microorganisms exhibit optimal growth when water activity exceeds 0.70.
Fungal and Mold Contamination: Elevated moisture levels create a favourable environment for the growth of molds such as Aspergillus, Penicillium, and Fusarium, significantly increasing the risk of mycotoxin production and contamination.
Bacterial Growth: Excessive moisture also promotes bacterial multiplication, including pathogenic species like Salmonella spp., Escherichia coli, and Clostridium perfringens, posing serious risks to feed safety and animal health.

2. Moisture and Microbial Proliferation
2.1 Water Activity vs. Moisture Content
A clear distinction must be made between moisture content and water activity (aw) when assessing feed safety. Moisture content represents the total quantity of water present in feed, typically expressed as a percentage. Conversely, water activity refers to the proportion of free, unbound water available for microbial growth. This means that even feed with a moderate moisture level can have a sufficiently high water activity to support microbial proliferation.
– Bacteria generally require a water activity level greater than 0.90 to sustain growth.
– Molds and yeasts can proliferate at water activity levels as low as 0.70.
– Feed spoilage tends to accelerate when moisture content exceeds 12–13%, though this threshold may vary depending on storage temperature and duration.

2.2 Molds and Mycotoxin Contamination
Mold growth poses a critical threat to feed quality, especially when feed is improperly dried or stored under humid conditions. The following mold species are commonly associated with feed contamination:
– Aspergillus spp. – Known for producing aflatoxins, particularly under warm and humid environments.
– Fusarium spp. – Responsible for producing fumonisins, zearalenone, and deoxynivalenol (DON).
– Penicillium spp. – Produces ochratoxins along with other harmful secondary metabolites.

A key concern is that mycotoxins are chemically stable, remaining in the feed long after the mold itself becomes invisible or inactive, thus posing ongoing risks to poultry health.
 
High moisture conditions also create an environment conducive to bacterial growth, including several significant poultry pathogens:
– Salmonella enterica – A zoonotic pathogen often introduced through contaminated raw materials or during feed processing.
– Escherichia coli – Certain strains are pathogenic and can impair gut health and performance.
– Clostridium perfringens – Associated with necrotic enteritis, a prevalent and economically significant poultry disease.
These bacteria can rapidly multiply in moist, warm feed, especially when storage hygiene is inadequate, leading to feed borne infections and compromised flock health.

3. Impact of Moisture-Induced Contamination on Poultry Health
3.1 Nutritional Degradation
Elevated feed moisture does more than encourage microbial growth—it also leads to the degradation of essential nutrients, compromising the nutritional quality of the feed:
– Vitamins – Fat-soluble vitamins (A and E) and water-soluble B-complex vitamins are particularly prone to degradation due to moisture-related oxidation.
– Proteins and Fats – Exposure to excess moisture can initiate rancidity and protein denaturation, reducing digestibility and nutritional value.
– Enzymes and Additives – Many feed additives, including enzymes, lose their efficacy when exposed to moisture, due to chemical breakdown or loss of activity.
Consequently, even if the feed meets the formulated nutritional specifications on paper, its actual nutrient availability to the bird may be substantially compromised.

3.2 Gastrointestinal Health and Immunity
Contaminated feed directly impacts the gastrointestinal health and immune status of poultry:
– Induces inflammation of the intestinal lining, leading to enteritis.
– Causes dysbiosis, disrupting the balance of beneficial gut microbiota.
– Reduces nutrient absorption efficiency, contributing to malnutrition.
– Weakens the immune system, increasing the susceptibility to secondary infections.
Chronic exposure to mycotoxins further suppresses immunity, reduces the efficacy of vaccinations, and predisposes birds to coccidiosis, respiratory infections, and other opportunistic diseases.

3.3 Productivity and Performance
The long-term consequences of feeding moisture-damaged or contaminated feed include:
– Poor growth rates, increased feed conversion ratios (FCR), and reduced body weight gains.
– Decline in reproductive performance, including lower egg production and decreased hatchability in breeder flocks.
– Higher mortality rates and escalating veterinary expenses due to disease management.
Therefore, moisture control in feed is not only a matter of safety but a direct factor in maintaining poultry productivity, profitability, and overall farm sustainability.

4. Strategies for Moisture Control in Poultry Feed
4.1 Optimal Storage Conditions
Preventing moisture accumulation in feed requires stringent storage management practices:
– Maintain relative humidity (RH) below 65% in feed storage facilities.
– Ensure adequate ventilation and temperature regulation to minimize condensation risks.
– Utilize moisture-resistant packaging, such as sealed bags or properly maintained silos, to protect feed from environmental humidity.
– Implement a first-in, first-out (FIFO) stock rotation system to prevent prolonged storage that could increase spoilage risk.
4.2 Processing and Drying Practices
Proper processing is essential to minimize residual moisture:
– Ensure feed is thoroughly dried during production to target moisture specifications.
– Monitor post-pelleting cooling times to prevent condensation within storage containers.
– Avoid incorporating high-moisture raw materials unless they are specifically treated or stabilized.
4.3 Use of Additives and Preservatives
Incorporating specific feed additives can help mitigate microbial growth and toxin risks:
– Mold inhibitors (e.g., propionic acid, sorbic acid) suppress fungal proliferation.
– Organic acids reduce pH levels, creating an environment less conducive to bacterial growth.
– Mycotoxin binders (e.g., bentonite, activated charcoal, yeast cell wall components) adsorb harmful toxins in the gastrointestinal tract, reducing absorption and toxicity in poultry.
4.4 Monitoring and Testing
Routine quality assurance is critical for early detection of moisture-related issues:
– Use moisture meters for rapid, on-site moisture assessments.
– Conduct periodic laboratory analyses to evaluate microbial load and mycotoxin presence.
– Apply Hazard Analysis and Critical Control Points (HACCP) principles during feed production and storage to systematically identify and control risks.

5. Regulatory and Safety Implications
Global feed safety standards emphasize moisture control as a critical control point (CCP) due to its role in preventing contamination and zoonotic disease transmission. Compliance with international regulations enhances food safety, promotes animal welfare, and improves market access. Key regulatory frameworks include:
– Good Manufacturing Practices (GMP+)
– ISO 22000 – Food Safety Management Systems
– CODEX Alimentarius Guidelines
– EU Feed Hygiene Regulation (EC No. 183/2005).
Adhering to these standards not only ensures compliance but also strengthens consumer confidence and supports export competitiveness in international poultry markets.

6. Conclusion

Effective moisture management in poultry feed is fundamental to ensuring feed hygiene, animal health, and overall food safety. Elevated moisture levels promote the growth of harmful microorganisms and the accumulation of toxic metabolites, leading to severe implications for poultry health, productivity, and farm economics.By adopting preventive strategies in feed production, storage, and quality monitoring, producers can safeguard feed integrity and protect flock performance. Moisture control should be recognized not as an operational expense but as a strategic investment in animal welfare, economic sustainability, and public health protection.

 
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Mycotoxins in the food chain: Understanding risks and exploring mitigation strategies https://www.vprintinfotech.com/mycotoxins-in-the-food-chain-understanding-risks-and-exploring-mitigation-strategies/ Fri, 06 Jun 2025 12:46:12 +0000 https://www.vprintinfotech.com/?p=7085

Mycotoxins in the food chain: Understanding risks and exploring mitigation strategies


By: Dr. Maloshrie Bora, Program Manager – Feed Safety, Trouw Nutrition South Asia

 

The safety of animal feed is increasingly compromised by a confluence of global challenges, notably mycotoxin contamination. These toxic metabolites, produced by molds such as Aspergillus and Fusarium, pose significant health risks to livestock and, by extension, to humans consuming animal products. Contributing factors include a shortage of quality raw materials, exacerbated by supply chain bottlenecks and geopolitical disruptions. Climate change further intensifies the issue by altering temperature and precipitation patterns, creating favorable conditions for mold growth and mycotoxin production. Additionally, inadequate storage and transportation facilities, often lacking proper ventilation and climate control, facilitate the proliferation of these harmful fungi. Together, these elements underscore the urgent need for comprehensive strategies to mitigate mycotoxin risks and ensure feed safety.

Even the smallest lapse in post-harvest handling can swiftly trigger the formation of harmful secondary metabolites like mycotoxins. Factors such as delayed drying, inadequate moisture control, and poor storage conditions can create an environment conducive to fungal growth, leading to rapid mycotoxin accumulation. For instance, aflatoxin contamination in maize has been linked to improper drying and storage practices, highlighting the critical importance of stringent post-harvest management to ensure food safety.

Mycotoxin contamination poses a significant threat to various stakeholders in the agricultural and food sectors, including farmers, feed producers, food processors, public authorities, and end consumers. These toxic compounds adversely affect animal health by impairing the gastrointestinal tract, suppressing the immune system, and disrupting nutrient absorption, leading to decreased productivity and increased susceptibility to diseases. Implementing a comprehensive 360-degree mitigation strategy—encompassing prevention, detection, regulation, and education—can effectively address this multifaceted issue and safeguard public health and economic interests.

The “Big 6” mycotoxins—aflatoxins, ochratoxins, fumonisins, zearalenone, deoxynivalenol (DON), and T2 toxin—are among the most prevalent and toxic secondary metabolites produced by molds affecting agricultural commodities. These toxins impact various species differently; for instance, aflatoxins primarily affect liver function in mammals, while zearalenone exhibits estrogenic effects leading to reproductive issues in ruminants and pigs.

The incidence and severity of mycotoxin contamination are influenced by environmental factors such as temperature, humidity, and rainfall, which can create conducive conditions for mold growth and toxin production. Not all mycotoxins are equally toxic across species; for example, DON is highly toxic to swine, whereas poultry are less affected. Climate change exacerbates the problem by altering weather patterns, potentially increasing the prevalence and distribution of mycotoxins in crops.

Aflatoxins occur worldwide in feed and feed stuffs which results in severe economic loss to poultry and livestock industries. The extent of Aflatoxin contamination varies with geographic location, farming methods and the susceptibility of commodities to fungal invasion during pre-harvest, storage, and processing periods. Numerous studies showed negative effects of Aflatoxin in broiler chickens including a decrease in the efficiency of feed utilization and body weight gain, liver damage, poor immune response, and increased mortality. Aflatoxin is shown to induce pathological alterations in important organs such as the liver, kidneys, and lymphoid organs. Furthermore, the transmission of aflatoxin B1(AFB1) and its metabolites from feed to animal edible tissues and products, such as the liver and eggs, becomes particularly important as a potential hazard for human health. Given the global economic importance of Aflatoxin, many strategies have been tried to minimize their negative impact. A successful prevention strategy must be economical and capable of eliminating all traces of toxin without leaving harmful residues and should not impair the nutritional quality of the commodities. Extensive research has been carried out using adsorbent (binder) materials that adsorbs to Aflatoxin molecule by means of ion exchange and thereby preventing their absorption into blood circulation. Among various binding agents, clays and yeast cell wall materials are the most tested. Silicates are the main group of clays that are studied extensively in terms of Aflatoxin binding. These include tectosilicates (zeolites), 1:1 phyllosilicates (kaolinite), 2:1 phyllosilicates (smectites, vermiculites, chlorites, micas) and sepiolite. All silicates, however, are not the same in terms of their ability to bind Aflatoxin and among the above, smectites have shown greater binding efficacy against Aflatoxin. The ability of smectite clays to bind mycotoxins depends on pH in the gut, molecular arrangements, and its geographic region of origin. Smectite clays possess high Aflatoxin adsorption capacity due to its high surface area, ion exchange capacity, and ability to swell in the presence of water, and the efficacy has been proven in vivo in broiler chickens. The leading hypothesis on the bonding mechanism between adsorbed aflatoxins and smectites is the electron donor–acceptor (EDA) model. Other models such as selective chemisorption, H-bonding, and bonding through furan rings were proposed.

The supplementation of smectite clay in feed to aflatoxin challenged broilers considerably reduced the magnitude of toxic effects of aflatoxin and improved growth and immune response. Hence, smectite clay could be successively used in feed to ameliorate the toxic effects of aflatoxins in broiler chickens.

Aflatoxin B1 (AFB1), deoxynivalenol (DON) and ochratoxin A (OTA) are ones of the most common and dangerous mycotoxins. AFB1, produced mainly by Aspergillus, is one of the most poisonous toxins, which is classified as Group I carcinogen by the World Health Organization due to its hepatoxicity, immunotoxicity, mutagenicity, genotoxicity, and carcinogenicity on variety of animals. DON, produced by many Fusarium molds, contamination in feeds induces anorexia, emesis, and damage to intestinal barrier and immune function in animals through suppressing the synthesis of nucleic and proteins . OTA, a toxic metabolite from Aspergillus and Penicillium molds, possesses hepatoxic, nephrotoxic, neurotoxic, immunotoxic, and teratogenic effects on liver and kidney. Long-term epidemiological investigations have shown that most of the global feed is exposed to more than one mycotoxin, and mycotoxin contamination of food and animal feed is a worldwide problem. Meanwhile, when three mycotoxins co-existed in the poultry feeds, their interaction have been further associated with significant alterations in the productivity and profitability of animals. Therefore, development of remediation strategies to prevent or mitigate the mycotoxicosis is imperative.

Trouw Nutrition’s TOXO® range offers a suite of mycotoxin binders designed to mitigate the negative effects of mycotoxin contamination in animal feed. These products are formulated to support animal health and performance by reducing the bioavailability of harmful mycotoxins.
These products are part of Trouw Nutrition’s comprehensive approach to mycotoxin risk management, aiming to ensure feed safety and optimize animal health and performance.

TOXO®-MX: Precision for Aflatoxins
TOXO®-MX is a specialized binder formulated to combat aflatoxins, particularly Aflatoxin B1, which can adversely affect dairy cows and other livestock. By incorporating purified smectite clays, TOXO®-MX effectively reduces the bioavailability of aflatoxins in the gastrointestinal tract. This reduction leads to a significant decrease in the excretion of Aflatoxin M1 in milk, ensuring compliance with regulatory standards and safeguarding consumer health. Additionally, TOXO®-MX enhances feed efficiency, as evidenced by improved milk production per kilogram of dry matter ingested in dairy cows.

TOXO®-XL: Comprehensive Protection Against Fusarium Mycotoxins
TOXO®-XL is an advanced binder designed to address the challenges posed by Fusarium-related mycotoxins, such as trichothecenes and fumonisins. This product combines smectite clays with specifically selected glucose biopolymers and purified β-glucans, which work synergistically to reinforce intestinal barrier function and modulate the immune response. The result is a comprehensive solution that not only binds and eliminates mycotoxins but also mitigates performance impairments caused by their exposure.

TOXO®: Broad-Spectrum Mycotoxin Binder
TOXO® serves as a versatile, broad-spectrum mycotoxin binder suitable for various animal species. It utilizes smectite clays to effectively reduce the bioavailability of a wide range of mycotoxins, including aflatoxins, ochratoxins, and zearalenone. By preventing the absorption of these toxins, TOXO® helps maintain animal health and performance, making it an essential component of comprehensive mycotoxin risk management strategies.
Collectively, the TOXO® product range represents a holistic approach to mycotoxin risk management, integrating advanced scientific formulations to protect animal health and ensure the safety of the food chain.

 

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Biosecurity Measures – The First Line of Defence Against Bird Flu https://www.vprintinfotech.com/biosecurity-measures-the-first-line-of-defence-against-bird-flu/ Sat, 22 Mar 2025 05:46:56 +0000 https://www.vprintinfotech.com/?p=6936

Biosecurity Measures – The First Line of Defence Against Bird Flu

Dr. Sagrika Bhat1, Dr. Sundus Gazal2, Dr. Sabahat Gazal3and Dr. Anvesha Bhan4
1Division of Veterinary Biochemistry, 2,3,4Division of Veterinary Microbiology
and Immunology, Sher-e-Kashmir University of Agricultural Sciences and Technology of Jammu

Microscopic pathogens, including bacteria, viruses, fungi, and parasites, pose significant threats to poultry health, with avian influenza being a major concern due to its high mortality, economic impact, and zoonotic potential. The disease is caused by Influenza A virus belonging to the family Orthomyxoviridae. Influenza A viruses are divided into subtypes based on two proteins on the surface of the virus: hemagglutinin (H) and neuraminidase (N). There are 18 different hemagglutinin subtypes and 11 different neuraminidase subtypes (H1 through H18 and N1 through N11, respectively). The highly pathogenic strains such as H5N1, H7N9, and H9N2 have been reported to cause severe disease. The virus spreads through direct contact with infected birds, contaminated feed, water, and fomites, while wild migratory birds serve as natural reservoirs, enabling global transmission. Highly pathogenic avian influenza can lead to near-total flock mortality, significantly disrupting poultry production and trade. Additionally, zoonotic strains such as H5N1 and H7N9 can cause severe respiratory illness, pneumonia, multi-organ failure, and high fatality rates in humans, necessitating global surveillance by organizations like the World Health Organization (WHO).

Poultry farms constantly face the risk of Avian influenza and other infectious diseases that persist in dust, droppings, and farm waste, making biosecurity a fundamental component of disease prevention. Biosecurity measures serve as the first line of defence, preventing pathogen entry and transmission through stringent hygiene, controlled farm access, and optimized housing conditions. Effective biosecurity minimizes outbreaks of avian influenza, Newcastle disease, duck plague, and bacterial infections such as fowl cholera and mycoplasmosis, which compromise poultry health, reduce productivity, and weaken consumer confidence.

Given the increasing incidence of avian influenza worldwide, including India, strengthening biosecurity is imperative to safeguard poultry health and public safety. Disease prevention strategies must integrate high-quality stock, proper housing, clean feed and water, regular disinfection, and restricted farm access. Additionally, modifying industry practices in poultry production, transport, and marketing is essential to curb disease spread. Veterinary authorities must continuously evaluate and refine biosecurity measures in high-risk areas while considering economic and social impacts. Several biosecurity measures have been implemented or require further revision in Asian countries, including India, to effectively control avian influenza and ensure sustainable poultry production. Above all, biosecurity must be a continuous effort rather than a reactive response to outbreaks.

A well-structured, proactive approach remains critical for preventing disease outbreaks, ensuring industry stability, and minimizing zoonotic risks.

Key Biosecurity Measures in the Poultry Industry
1. Marketing Systems: Live bird markets serve as critical points for avian influenza (AI) transmission due to continuous operation, overnight poultry retention, and the reintroduction of unsold birds to farms. These practices facilitate pathogen circulation. Implementing a mandatory market rest period of 24 hours in a week, accompanied by thorough cleaning and disinfection, is essential to mitigate viral persistence and spread.

2. Species Segregation: Domestic waterfowl and quail act as reservoirs for avian influenza viruses. Their cohabitation, transportation, and marketing alongside other poultry should be restricted to minimize interspecies transmission. Additionally, swine reared in proximity to infected poultry farms are found to be infected with HPAI (Highly Pathogenic Avian Influenza) therefore should undergo systematic veterinary surveillance. In cases of confirmed avian influenza infection, culling of affected herds is recommended to prevent viral reassortment and potential zoonotic spillover.

3. Farming Practices: Extensive poultry rearing systems, particularly in village settings, pose a heightened risk for avian influenza introduction due to their lack of biosecurity controls. Strategic vaccination programs targeting backyard poultry can enhance herd immunity. Commercial farms should adhere to an ‘all-in, all-out’ production model to reduce pathogen exposure and poultry workers must adhere to strict biosecurity protocols, including cleaning, disinfecting, or changing protective clothing, equipment, and footwear before entering and after leaving farms.

4. Transport Biosecurity: Transport cages and egg containers should be constructed from non-porous materials such as plastic or metal over wooden cages to facilitate effective disinfection. To prevent environmental contamination and disease spread, bio-secure transport protocols should be implemented. This includes minimizing faecal contamination during poultry unloading, ensuring transport cages are cleaned and disinfected before returning to farms, and using easily sanitized materials for transporting table eggs, fertile eggs, and day-old chicks.

5. Compartmentalization: In regions where avian influenza is endemic, creating compartmentalized poultry populations with distinct health statuses is essential for disease control and international trade compliance. This requires strict biosecurity measures, including traceability of fertilized eggs, certified hatchery and feed sources, vermin control, and regulated transport. Poultry operators must maintain detailed records of suppliers, egg crate circulation, employee responsibilities, and transport activities to ensure compliance and effective disease containment.

Mitigation of Stress through Managemental Interventions
While biosecurity is crucial for disease prevention, stress reduction is equally important in enhancing poultry resistance to infections, including avian influenza. Environmental factors such as high temperatures, ammonia build-up, overcrowding, feed deprivation, handling, and transportation induce physiological stress, compromising immunity. Strategies such as adjusting feeding schedules, providing cool drinking water, supplementing essential nutrients, and optimizing dietary energy and amino acid levels help mitigate heat stress. Maintaining appropriate temperature, ventilation, and humidity is vital for flock health, especially in regions with high heat and humidity. Since wet litter contributes significantly to ammonia production, proper litter management, ventilation, and dietary adjustments are necessary to reduce ammonia levels and support biosecurity measures.

Nutritional Biosecurity Measures
Poultry immunity depends on proper nutrition, as essential nutrients regulate immune cell activity and function. Balanced diets rich in proteins, vitamins, trace minerals, and energy sources are critical for disease resistance. Probiotics enhance immunocompetence by stimulating antibody production, while prebiotics selectively promote beneficial gut bacteria, improving immune function. Additionally, mycotoxins in poultry feed suppress immune responses, making birds more susceptible to infections. Strict feed quality control and mycotoxin mitigation strategies should be integral to biosecurity programs.

Hygienic Disposal of Poultry Waste
Poultry operations generate waste, including dead birds, broken eggs, manure, litter, and contaminated equipment, which serve as reservoirs for pathogens. Proper disposal methods include burial, incineration, rendering, and composting.
Burial is effective but requires a 90-day period for pathogen deactivation before use as fertilizer. Incineration is reliable but often limited by facility size. Open burning is costly and environmentally unfavourable. Rendering is viable if decontamination is ensured, though private facilities may be reluctant to handle infected material. Composting within farm premises minimizes the risk of disease transmission during transport. Additionally, high-risk practices like using contaminated water and recycling untreated poultry waste should be strictly prohibited.

Wild Bird and Vector Control for Disease Prevention
Wild birds, particularly waterfowl, act as reservoirs for avian influenza and other pathogens, and play an important role in introducing infections to poultry farms. Effective biosecurity includes wild bird-proofing quarantine facilities and preventing their access to contaminated areas. Rodent control is equally essential, as rats and mice serve as mechanical carriers of the pathogens. A structured eradication program should minimize their dispersal from infected sites. Flying insects also contribute to disease transmission; thus, integrated pest management strategies should be implemented to reduce their presence in poultry sheds.
Immunomodulation through Nutritional Supplementation and Genetic Strategies
Regular supplementation of vitamins, minerals, and proteins strengthen poultry immunity and should be a core component of modern biosecurity. Nutrient deficiencies compromise resistance, increasing vulnerability to avian influenza and other diseases. As the influenza virus rapidly mutates and can exist as various subtypes and pathotypes, it questions the efficacy of existing vaccines and antivirals, and hence, genetic interventions offer a promising alternative. Screening poultry populations for disease-resistant genes, particularly in native breeds, and incorporating these traits through selective breeding can enhance flock resilience against infections.

Vaccination Strategies for Avian Influenza
Vaccination integrated with biosecurity measures can act as a critical tool for influenza control. Vaccines should provide adequate protection and minimize virus shedding. Vaccination programs coupled with virological and serological surveillance can be used to effectively detect viral mutations and assess vaccine effectiveness. In past influenza outbreaks in Maharashtra, Gujarat, and Madhya Pradesh, India successfully controlled the disease through culling and biosecurity measures. Establishing vaccine banks and enhancing domestic vaccine production are essential for rapid response to outbreaks. Policymakers must decide on vaccination strategies based on epidemiological data and national disease trends.

Strengthening Quarantine and Flock Profiling
Strict quarantine protocols are crucial in preventing disease introduction through newly acquired birds. Newly introduced poultry should be isolated for at least 21 days, monitored for clinical symptoms, and tested (blood, faecal, and nasal swabs) before integration with existing flocks. Beyond farm-level quarantine, strict regulations should be enforced to control cross-border movement of live poultry and poultry products.

Conclusion:
Effective biosecurity is the cornerstone of bird flu prevention and control, serving as the primary defence against disease outbreaks in poultry. Raising awareness among poultry farmers, industry stakeholders, and policymakers is essential for strengthening biosecurity at all levels. Training programs for grassroots poultry managers should be prioritized to ensure the proper implementation of preventive measures. In addition to immunity-boosting strategies and advancements in disease control, continuous surveillance of avian influenza and other infectious diseases is crucial. A proactive and well-enforced biosecurity framework not only safeguards poultry health and industry stability but also minimizes public health risks associated with zoonotic disease transmission. By integrating stringent biosecurity protocols with modern disease prevention strategies, the poultry sector can achieve long-term sustainability and resilience against emerging threats like avian influenza.

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