Toxico-biological estimation of meat of broiler chickens after the use of feed additive and antibacterial preparations

Abstract

The purpose of the study was to study the influence of "Probix" feed additive (FA) and antibacterial preparations of pharmazin and tilotsiklinvet on the toxicity of poultry meat during their use. In the first stage, the influence of the "Probix" feed additive on the relative biological value and toxicity of broiler chickens’ meatwas studied, which included the Lactobacillus acidophilus, Lactobacillus helveticus, Lactobacillus bulgaricus, Lactobacillus lactis, Streptococcus thermophilus, Enterococcus faecium strains. At the second stage of the study, the influence of pharmazin and tilotsiklinvet on the toxicity of white and red muscles of chicken broilers was studied. According to the results of the first stage of the study, no negative effects were found in the meat samples of chicken broilers of the control and experimental groups, which were fed with "Probix" FA, on morpho-physiological characteristics of Ciliate Tetraсhуmena pуriformis, and hence, the said meat is not toxic. It was found, that the meat of poultry from experimental groups, which were fed with pharmazin and tilotsiklinvet, compared to the control group, is weakly toxic, which does not allow it to be used for food purposes without any restrictions. In the experimental group receiving pharmazin, within 24 hours the death rate of ciliate Tetraсhуmena pуriformis in white muscles was about 20 %, slowing of ciliates moving was observed in 72 % of individuals, active and mobile – 6 %, pathological changes in forms – up to 2 %, growth inhibition was not observed. In red muscles in the experimental group, receiving tilotsiklinvet, the death of ciliates was about 14 %, cells with unnatural movements – 70 %, active and mobile – 16 %, pathological changes in form and growth depression were not found.