Demchyshyn O. Sanitary and Hygienic Assessment of the Use of Acidifier «Aquasan» During Raising of Broiler Chickens

Thesis is aimed at the development of acidifier agent for broiler chickens its sanitary and hygienic assessment, impact on poultry productivity and quality of slaughter products. For the first time, the composition of a new liquid acidifier «Aquasan» for broiler chickens create based on organic and inorganic acids is scientifically substantiated. The use of acidifier «Aquasan» in a dose of 0.1 % of working solution for feeding of broiler chickens from the 27th day of raising has been experimentally established. Its positive effect on the microflora of gastrointestinal tract of chickens and the structure of small intestinal mucosa has been proved. Broiler mortality has been reduced by 2.3 times and the number of livestock has been increased to 96.2 % by feeding of acidifier «Aquasan». The positive effect of acidifier on the performance of chickens, slaughter rates of carcasses and on the condition of the body of broilers has been experimentally investigated. It has been proven the absence of acute, subacute and chronic toxicity of chicken meat and high quality of product and biological value of broiler meat for the use of acidifier «Aquasan». The influence of acidifier «Aquasan» on the microflora of gastrointestinal tract of chickens and the level of contamination of broiler carcasses by pathogenic and conditionally pathogenic microflora during their processing in the slaughterhouse has been revealed. The mesophilic aerobic and facultative anaerobic microorganisms content has been decreased on the skin of carcasses in 1.8 to 1.9 times and on the abdominal wall – in 3 times, and the number of coliform bacteria – in 2.9–4 times and 3.6 times, respectively.