Influence of Bacillus subtilis on the productivity of laying hens of the Brown Nik cross in summer time
نویسندگان
چکیده
On the market of feed and veterinary additives, there is a wide range drugs that have positive effect on poultry body. We conducted scientific economic experiment to study probiotic based Bacillus subtilis productivity laying hens Brown Nick cross. Each enterprise strives find most optimal solutions for its production. Thus, we experiment. For experiment, two groups were selected - layers cross, same age. The nutrition program both was same. difference birds experimental group introduced into diet 1000 g /t subtilis. supplementation minimized heat stress losses prevented performance degradation. bird group, which injected with subtilis, increased percentage intensity egg production than control. A deeper use complexes in enzymatic system will allow producers probiotics reduce cost feeding hens.
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ژورنال
عنوان ژورنال: ???????? ??????? ??????
سال: 2022
ISSN: ['2313-8432', '2587-9944']
DOI: https://doi.org/10.28983/asj.y2022i6pp47-50