Abstract
The article presents the data on the study of age-related features of non-contagious pathology in broiler chickens, as well as the level of metabolic processes in liver of healthy poultry and poultry with diseases. The results of the studies indicate that in the conditions of an industrial enterprise specializing in meat poultry rearing, poultry mortality in different age periods ranged from 3 to 5 % of the total population. In the structure of the causes of mortality of broiler chickens from the 8th to the 15th day, an increase in mortality from hepatopathies was registered, and by the 25th day of life hepatosis was recorded in the bulk of the dead poultry. Biochemical monitoring of blood serum in poultry with signs of liver pathology revealed an increase in the level of ALAT, β-globulins, and the “inflammation syndrome” of the hepatic parenchyma was confirmed by a positive thymol test. Long-term consumption of feed contaminated with mycotoxins by broilers led to the deterioration in the health of the poultry, an imbalance in liver and the development of general metabolic disorders of the poultry organism.
Highlights
In modern conditions of intensive farming, a huge poultry population is concentrated in industrial poultry farming in Russia
Up to 95–98 % of poultry mortality occurs in diseases of non-contagious etiology, since timely vaccination against the most frequently occurring infectious diseases, such as infectious bursal disease (IBD), Newcastle disease, infectious bronchitis (IB), Marek’s disease and others, provides persistent veterinary well-being for the development of infectious diseases in poultry farms, which reduces the likelihood of infectious diseases almost to zero [6]
The results of our research indicate that in an industrial enterprise specializing in the rearing of meat poultry, poultry mortality in different age periods ranged from 3 to 5 % of the total population
Summary
In modern conditions of intensive farming, a huge poultry population is concentrated in industrial poultry farming in Russia. The technology for the production of broiler meat is based on the use of highly productive poultry, full feed rations, regulation of the maintenance regime, mechanization and automation of production processes, as well as effective methods of veterinary and sanitary preventive measures [1,2,3]. A significant number of poultry die in the postnatal period, when the requirements for their feeding and keeping conditions are the highest. Cases of mass diseases with clearly expressed or latent pathological signs are observed, which causes significant damage in the poultry industry [4, 5]. Up to 95–98 % of poultry mortality occurs in diseases of non-contagious etiology, since timely vaccination against the most frequently occurring infectious diseases, such as infectious bursal disease (IBD), Newcastle disease, infectious bronchitis (IB), Marek’s disease and others, provides persistent veterinary well-being for the development of infectious diseases in poultry farms, which reduces the likelihood of infectious diseases almost to zero [6]
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