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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.
Dr. Guillermo Zavala, Associate Professor at the University of Georgia, speaks about methods of controlling Infectious laryngotracheitis during the XXII Latin American Poultry Congress in Buenos Aires, Argentina. ...
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Dr. Trudy Wassenaar, Director of Molecular Microbiology and Genomics Consultancy (MMGC), speaks about Campylobacter control at the XVII World Veterinary Poultry Association Congress in Cancun, Mexico. ...
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Introduction
Cellulitis is an acute and diffuse suppurative inflamation, affecting all subcutaneous tissues and in certain instances the muscular tissue as well. It is frequently associated to abscess formation. In birds, cellulitis causes discoloration and thickening of the skin, hence, it is also known as an inflamatory process, or necrotic dermatitis (Norton, 1997). In recent years, the...
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Gregorz Wozniakowski, from the National Veterinary Research Institute, Pulawy, Poland speaks about Marek´s disease during the XVII World Veterinary Poultry Association Congress in Cancún, Mexico....
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Dr. Raúl Cerdá, Global Technical Director of Eco Animal Health, speaks about Avian Mycoplasmosis during the XXII Latin American Poultry Congress in Buenos Aires, Argentina. ...
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Henrik Christensen, Professor at the University of Copenhagen, speaks about a case of streptococcal infection in Denmark in free range layers. ...
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Introduction Coccidiosis is a realistic problem and one of the most important diseases of poultry worldwide. It is caused by a protozoan parasite known as Eimeria that invade the cells of the poultry intestine. Species of coccidia which commonly affect poultry are Eimeria tenella, E. acervulina, E. necatrix, E. maxima and...
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Dr. Erica Spackman, Research Microbiologist at Southeast Poultry Research Lab, US Department of Agriculture (USDA), speaks about the lectures she gave at the XVII WVPA Congress in Cancun, Mexico and about the Young Scientist award she received by the Houghton Trust about some trends and novel innovative technologies in viral diagnostics that could help to control poultry diseases in the future....
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Vaccines are used to prevent or reduce problems that can occur when a poultry flock is exposed to field disease organisms. Vaccinations should be thought of as insurance. Like insurance, there is a price to be paid for protection against a potential threat. Costs include price of the vaccine, time spent designing the vaccination schedule and administering the vaccines, and losses due to vaccine reactions from the live-type vaccines...
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Mathieu Cortyl Manager for Norel, Spain, was present at Poultry Focus Asia 2010 and talked to Engormix.com about his presentation of salmonella control in broilers....
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The US Centers for Disease Control and Prevention estimates, each year, about 9.4 million people get sick from contaminated food. A new test may detect Salmonella infection in an early stage, allowing prompt action.
The USDA reports the leading cause of bacterial-related food illness in the U.S. is salmonella. About one million Americans get sick from salmonella annually, more than 19,000 are hospitalized and more than 370...
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AMES, Iowa - Iowa State University animal scientists are collaborating on a study of poultry genetics and management to help chickens deal with increased heat.
A $4.7 million grant from the U.S. Department of Agriculture's Agriculture and Food Research Initiative (AFRI) is funding the five-year project. Carl Schmidt, associate professor at the University of Delaware, leads the study with scientists from Iowa State, North...
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When a bird is vaccinated, or exposed to a viral or bacterial infection, a complex biological mechanism is set in motion which normally results in the elevation of the bird's specific defenses against the disease in question. Sometimes this process also raises non-specifically its defenses against other infections. The immune response is generated by a complex system of specialized cells, the lymphocytes. All vertebrates have such a system but those of birds and...
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Gastrointestinal diseases pose a serious threat to industrial poultry breeding. Infections are caused by proliferation of naturally occurring intestinal microorganisms and their subsequent translocation to other organs and tissues of the birds. The consequences are a deterioration of feed conversion ratio, an increase in mortality and finally a reduction in productivity. According to the World Health Organization (WHO) this leads to a...
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ANTIOXIDANT PROPERTIES A major preventive measure of lipid oxidation is the use of synthetic or natural antioxidants that function either by scavenging chain-carrying peroxyl radicals or by diminishing the formation of initiating lipid radicals. Synthetic antioxidants such as butylated hydroxytoluene (BHT) and butylated hydroxyanisole (BHA) have long been used to control oxidation of lipids and vitamins in the feed, but recent concern over their use has created a need...
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Osteoporosis (Caged Layer Fatigue) is a condition which manifests itself in several clinical signs. There is leg weakness and sometime paralysis. Affected birds are unable to stand and usually to move to the back area of the cage. They often fall onto their sides with leg outstretched. Birds which live for several days after going down may dehydrated or emaciate and are out of production. Although affected birds initially are alert and can continue to eat,...
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I have noticed continuous prolapse in a flock of broiler breeders aged 12th wk now.It is happening since lat 8 weeks and so for more than 1% mortality has occured. We checked the dietary salt level and it is ok.We have ruled out chronic coccidiosis.The flock is on natural light only. Please help. ...
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We have broilers at 3050 mts in the Caucasus and we’ve done a detailed study about chicken breeding in altitude, which presented us alternatives (we’ve reached mortality percentages of 5.3) We want to get acquainted with experiences in the use of selenium doses (not from fish but from alfalfa) to replace phosphorus in cysteine, metionine and lysine, to give a true value to the protein. We also need information related to the provision of vitamin K in these broilers to...
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Abstract Poultry litter becomes wet when the rate of water addition (urine/faeces/spillage) exceeds the rate of removal (evaporation). Anti-nutritional factors, toxins, pathogens and nutrient imbalances may cause wet litter directly by altering normal digestive physiology or indirectly by disturbing normal gut ecology. Poor quality ingredients and those with excess oligosaccharides or minerals can cause a...
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Red mites are one of the most important pests of laying hen farms worldwide. More than 50% of layer batches encounter difficulties in managing red mite problems. Poultry red mite (PRM), scientific name Dermanyssus gallinae, is a nocturnal blood feeding ectoparasite of birds. PRM is an acarus that requires blood of its host for development and reproduction. It particularly infests laying farms due to long production...
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