تأثير إضافة أنزيم الفايتيز المايكروبي في العلائق المنخفضة البروتين على الصفات الإنتاجية لأمهات فروج اللحم
2019, Volume 2018 المؤتمر الدولي الزراعي الثالث, Issue عدد خاص, Pages 113-122
Abstract
This study was conducted at Department of Animal production, Faculty of Agriculture and Forestry, Mosul University from 16/12/2013 to 16/5/2014. This study had been done to determine the effect of adding Phytase enzyme by 300 g / tone feed in productive traits of broiler breeder Rose strain. A total of 96 chickens and 16 roosters at the age of 42 weeks. They were randomly assigned to forth treatments in two replicates for each 12 chickens and 2 roosters in each replicate. The results of the current study showed that the addition of enzyme to the diets of low protein of them affected significantly (0.05≥ P) the egg production (HD%), resulting number of eggs (egg / bird), mass of eggs (g eggs / bird / day) and feed conversion efficiency (kg feed / kg eggs). While egg weight (g), protein conversion efficiency, body weight and percentage of total mortality, was not affected significantly.
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