不同维生素预混料对科宝肉鸡生长性能、胫骨质量和抗氧化能力的影响

Effects of Dietary Multi-Vitamin Premix on Growth Performance,Tibia Quality and Anti-oxidative Capacity in Cobb Broilers

试验研究3种维生素预混料(处理1、2、3)对科宝肉鸡生长性能、胫骨质量及抗氧化能力的影响。1 200只科宝肉鸡随机分为3个处理,每个处理10个重复,每个重复40只鸡,试验期42 d。结果表明:与处理1相比,处理3和2可显著提高肉鸡21 d体重,显著降低1～21 d饲料增重比;处理3还显著提高肉鸡1～21 d体增重、采食量和21 d胫骨灰分和磷比例及42 d胫骨灰分、钙比例(P<0.05);与处理2相比,处理3显著提高肉鸡42 d胫骨磷比例(P<0.05)。与处理2和1相比,处理3显著提高肉鸡21 d血清总超氧化物歧化酶(T-SOD)活力(P<0.05)。结果表明,根据科宝肉鸡的生长性能、胫骨质量和机体抗氧化能力,适宜维生素预混料为处理3。

A study was conducted to study the effects of three dietary multi-vitamins premix（treatment 1,2,3） on the growth performance,tibial quality,and anti-oxidative capacity in fast growing broilers.Total 1 200 Cobb birds were randomly allotted to 3 treatments with 10 replicates of 40 birds,and fed to 42 d.Compared with the treatment 1,treatment 3 and 2 significantly improved the BW（21 d） and reduced F/G（1 to 21d）,while the treatment 3 also significantly improved the BWG,FI（1 to 21 d）,tibia ash,the proportion of phosphorous（21 d）,and calcium of ash（42 d）（P0.05）.Compared with the treatment 2,treatment 3 significantly improved the proportion of phosphorous of ash（42 d）（P0.05）.Compared with the treatment 1 and 2,treatment 3 significantly improved T-SOD（21 d） in sera（P0.05）.Results showed that according to the growth performance,tibial quality,and anti-oxidative capacity of Cobb broiler,the suitable multi-vitamin premix was treatment 3.