Effects Of Compound Of 25-dihydroxyvitamin D₃ VtaminD₃, Phytase On Growth Performance And The Matter Metabolite By Broiler

A study was conducted to determine the effects of different compound of 25-dihydroxyvitamin D₃,VtaminD₃,phytase on broilers. Study included performance, nutrient retention, tibia quality and antioxidant criteria.240 one-day Avian broiler chickens (chick sexing) were Completely randomly divided into six groups (the compound of 25-dihydroxyvitamin D₃ , VtaminD₃ and phytase is 0μg/kg-2760IU/kg-0FTU/kg ; 69μg/kg-0IU/kg-0FTU/kg ; 69μg/kg-2760IU/kg-0FTU/kg ;0μg/kg-2760IU/kg-750 FTU/kg;69μg/kg-0IU/kg-750 FTU/kg;69μg/kg-2760IU/kg-750 FTU/kg) , each with four replications which were ten chicks at early stage and eight chicks at late stage. the result showed:â‘ added 69μg/kg 25-dihydroxyvitamin D₃,2760IU/kg VtaminD₃ in feed, prevent broilers, growing of early stage, death and elimination rate are quite high,while prevention effect decrease at late stage. Other compounds have no signifant influence on growing broiler.â‘¡a dded 69μg/kg 25-dihydroxyvitamin D₃,2760IU/kg VtaminD₃ in feed,meanwhile added 750 FTU/kg phytase,and Ca,P reduced by 0.1% respectively,can eliminate prevention effect conducted by excessive VtaminD₃ at early stage.â‘¢only added 69μg/kg 25-dihydroxyvitamin D₃ in feed is favourable to the growth of bones.â‘£added 69μg/kg 25-dihydroxyvitamin D₃,2760IU/kg VtaminD₃ in feed,is not favourable to the utilization of CP,Ca,P added 2760IU/kg VtaminD₃,750 FTU/kg phytase,and Ca,P reduced by 0.1%,broiler'retention of Ca decreased.each compound have no significant effect on the utilization of dry matter and energy.⑤Only added VtaminD₃(2760IU/kg) in feed, activation of alkaline phosphatase in serum decreased,broilers are lake of P. If added phytase(750 FTU/kg)and Ca,P reduced by 0.1%, activation of alkaline phosphatase in serum significantly increased ,broilers are rich of P.â‘¥each compound have a litter influence on resistance to oxidation of broilers.⑦d ifferent compound of 25-dihydroxyvitamin D₃,VtaminD₃,phytase in feed have no significant influence on meat quality of broilers.⑧take all factors into account ,only added 69μg/kg 25-dihydroxyvitamin D₃ in broilers'feed ,or added 69μg/kg 25-dihydroxyvitamin D₃,750 FTU/kg phytase,and Ca,P reduced by 0.1% are ideal compounds.