Analysis of the live weight dynamics of male turkeys when using eubiotics based on bifidobacteria of Bifidobacterium bifidum strain in the diet

Abstract

In poultry farming, in order to increase the productivity and livability of poultry stock, antibiotics and biologically active compounds are used as feed additives, which, along with positive properties, cause pathological changes. On this basis, the aim of the research was to determine the effects of various doses of medications based on bifidobacteria on productivity, to find out whether the factor of belonging to a particular subgroup affects the average value of live weight in this subgroup and to conduct a pair comparison of live weight values in subgroups on the principle of “round-robin”. In the diet of turkeys of the first three experimental groups, medication No. 1 – an eubiotic, containing live bifidobacteria of Bifidobacterium bifidum strain was added; the turkeys of the rest three experimental groups received medication No. 2 – an eubiotic, containing live, lyophilized Bifidobacterium bifidum cells sorbed on activated carbon particles. The results of the variance analysis showed that at the age of 4 weeks, the factor of belonging of turkeys to a particular group had a significant impact on the value of the live weight of animals. Then, at the age of 8 weeks, the situation changed. In groups from II to VII, there was practically no significant difference in the average values of live weight. Only the control group I was singled out. At the age of 12 and 16 weeks, male turkeys of the II, III, V, VI groups, where eubiotics based on bifidobacteria were used, gradually began to stand out in a big way. This trend continued until the 24^th week. It has been established that medications, which contain bifidobacteria, have a great potential to increase the productivity of poults due to the activation of metabolic processes in the body. The most pronounced effect has biopreparation No. 2.