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Poultry diseases
When chickens are healthy they consume less feed and produce more quality eggs. They are less trouble to look after and less money is spent on medical costs. Poultry disease can spread rapidly among chickens because they are usually kept together in the chicken house. The chickens share the same feeders and drinkers, which can spread disease and infections rapidly from sick to healthy chickens. In intensive egg production systems, much focus is placed on the egg laying performance of the flock. Poultry diseases can negatively affect the health and performance of your flock. Important and common poultry diseases include necrotic enteritis, chronic respiratory diseases, gangrenous dermatitis, fowl cholera, and avian influenza.
1. Introduction The ongoing pandemic of a highly pathogenic avian influenza virus (HPAIV) of subtype H5N1 (goose/Guangdong lineage [gs/GD]), clade 2.3.4.4b, is posing an unprecedented threat, impacting both industrial and small-scale poultry operations [1,2]. Similarly, HPAIV infections in wild birds, particularly those leading to mass mortalities among colony-breeding species, are exerting significant pressure on avian biodiversity [3,4]. The recent increase in spillover...
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Brian Jordan (University of Georgia) explains how False Layer Syndrome affects poultry and what can be done to prevent it, in this Engormix interview during IPPE 2024 in Atlanta, USA....
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February 9, 2026
Australia - New South Wales - Sydney
1. Introduction Over the last few hundred years, humans have influenced the evolution of multiple animal species and different ecosystems involved in animal production [1]. This approach has led to the genetic change of domestic animals and has undoubtedly been driven by agriculture. The most important genetic changes in poultry production have occurred in the previous 60 years. Modern broiler chickens are likely the clearest example of these genetic improvements. Newborn chicks grow...
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Dr. Sunil B.Kulkarni, a veteran poultry consultant, explains how hygiene awareness, QSR demand, and antibiotic-free concepts are reshaping India’s poultry processing sector, aligning it with global EU and US FDA standards. ...
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Winter brings a unique set of challenges to modern poultry production, especially in open or poorly insulated houses. As temperatures drop, chickens expend more energy just to maintain body heat, which diverts nutrients away from growth, egg production, and immune function. Prolonged cold stress elevates...
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INTRODUCTION Influenza is a highly contagious viral disease that affects avian species, giving rise to the term avian influenza (AI) and several species of mammals [1, 2] due to factors associated with viral replication, the capacity for mutation and infectivity [3, 4]. The avian influenza virus (AIV), part of the Orthomyxoviridae family, is the causative agent of AI [2, 5]. This viral family is constituted of seven genera: Alphainfluenzavirus, Betainfluenzavirus,...
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Dear poultry scientists, I would like to start with the new subject regarding possible vaccination failure in MD prophylaxis. From my actual experience nowadays in spite of frequent use of bivalent vaccines against MD (Rispens+HVT) or (SB1+HVT) the MDV strains with raised virulence are isolated from field cases of the disease. I know in some cases this may be due to the low hygiene conditions in farms. However I also consider in some cases farmers apply double vaccination with bivalent...
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Dr. Sayantani Sihi Arora, Chief Scientific Officer at Agrivate Research & Advisory, explains how molecular diagnostics are transforming poultry disease detection. From faster, more accurate identification to distinguishing vaccine strains from field strains, she highlights why these tools are becoming essential for farmers—despite challenges in awareness and sample handling. Her insights reveal a future where early detection and proactive monitoring reshape poultry health...
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Effectiveness of Bacillus licheniformis-Fermented Products and Their Derived Antimicrobial Lipopeptides in Controlling Coccidiosis in Broilers (Extract)
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Introduction Dorsal cranial myopathy (DCM) is characterized by muscular changes, including degenerative and multiphasic lesions that specifically affect the anterior Latissimus dorsi (ALD) muscle in chickens, a superficial, bilateral muscle located in the dorsal region of the wings, which functions as an abductor of the humerus and wings [1–4]. Macroscopically, the ALD muscle region affected by DCM shows yellow, odorless, gelatinous edema under the skin [5,6]. The muscle...
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In this interview in Arabic, Marc Saad (Liptosa), points out how a natural solution supports respiratory health on several levels, especially in poultry. *Certain information associated with products, their composition and claims may be different depending on the geographical region and may not be applicable in all countries. Liptosa reserves the right to adapt to the requirements and legislation in each case. The information and technical recommendations provided herein are...
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Mr. O. P. Singh, Managing Director at ABTL, shares key insights from Poultry Knowledge Day and calls on current and future poultry leaders to work with unity, one voice, and a shared mission to elevate India’s industry. ...
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The UGA International Poultry Short Course provides a comprehensive overview of modern poultry production.
It is intended for those individuals with limited knowledge of poultry, as well as those who might have considerable experience in one area of poultry production but would like to have a better...
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Reviews made on the impact of intermittent lighting (IL) on broiler performance (Buyse et al., 1996; Rodrigues and Choct, 2017) attest to the consistency of such lighting programs in achieving better feed conversion rates. So far, no research has been conducted to assess the impact of IL on the susceptibility to and recovery from infectious diseases. We hypothesized that an IL program would increase broiler resilience to necrotic enteritis (NE). In order to test this hypothesis, a 2 x 2...
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There is an increasing trend of raising backyard poultry in urban and suburban settings across Australia, with Australian Egg Corporation Ltd. reporting backyard chicken coops accounting for almost 12 per cent of the nation's total egg production and 393 million eggs produced in metropolitan and regional gardens. However, there is no national or state legislation/policy in place currently for backyard poultry keeping and the issue is managed by local governments at a council level who...
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1. Introduction In conventional poultry farming, the risk of transmission of infectious diseases, increased by, e.g., high stocking density, low genetic variation, suboptimal ventilation, and immunosuppression, represents a serious challenge for birds’ health and welfare [1,2]. Against this background, biosecurity represents one of the most powerful instruments to mitigate the risk of introduction (external biosecurity) and subsequent spread (internal biosecurity) of...
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1. Introduction Eggs and meat from poultry are indispensable protein sources in people's meals in Bangladesh [1]. However, the advancement in the poultry production is often interrupted by the overwhelming occurrence of infectious diseases in low resource settings of developing countries such as Bangladesh. Occurrence of these diseases, which incur a colossal loss due to less production of a quality product and also from the treatment cost, are attributable to noncompliance...
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Introduction Gout is a metabolic disorder in which there is precipitation and accumulation of Uric acid crystals in Kidneys, Viscera, Peritoneum and Joints, resulting in mortality. In birds, Uric acid is the end product of protein and purine metabolism and is normally excreted through Kidneys. Uric acid is insoluble in water and since birds lack in enzyme Uricase, there is no further conversion of Uric acid in...
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Adnan Alrubaye (University of Arkansas) explains this disease, also known as BCO Lameness. He comments on different mitigation methods and his research collaboration with companies, in this Engormix interview....
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The 37th Annual Australian Poultry Science Symposium will take place from February 9th to 11th, 2026.
Planning is coming along nicely for APSS2026, and we have nine excellent invited speakers who are all very excited to be involved in the symposium next...
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28-day broiler bird have liver disorder and mortality 3-5 every day Please share your experience and advice. ...
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