Influence of probiotic and vitamin C on productivity, digestibility and accessibility of nutrients in the diet of meat quails while reducing the risk of aflatoxicosis

Abstract

Of all known aflatoxicones, the most dangerous is afl atoxin B1, produced by mold of the genus Aspergillus. It destroys the liver parenchyma, very often leading to cirrhosis of this gland. In addition, aflatoxin B1 suppresses the vital activity of beneficial microfl ora of the digestive tract and the processes of digestion and absorption of nutrients in compound feed. The purpose of the research was to study the effect of vitamin C and the probiotic Bioxymin Chicken on the livability, growth rate, digestibility and accessibility of nutrients in compound feed for meat quails with a tolerant level of aflatoxin B1. The studies have shown that in order to improve the survival rate of livestock, growth rate, increase digestibility and accessibility of nutrients in the diet, vitamin C at a dose of 500 g/t and probiotic Bioxymin Chicken at a dose of 1500 g/t of the compound feed should be included in the composition of complete compound feeds (barley-sorghum-soy type) at a tolerant level of afl atoxin B1. This resulted in a significant (p < 0.05) superiority of the quails of the 3rd experimental group over the control analogues in terms of digestibility coefficients of dry matter, organic matter, crude protein, crude fi ber and nitrogen-free extractive substances. The results of the studies have shown that the activity indices of proteinases, cellulases, lipases, amylases in the chyme of the small intestine are completely consistent with the indices of digestibility and assimilation of nutrients in quail diets. In addition, in comparison with the quails of the control group, the meat quails of the 3rd experimental group showed a higher digestibility of feed nitrogen by 7.10 % (p < 0.05), with an increase in the level of use of this element from the amount taken per day with feed by 3.69 abs.%.