沙棘叶粉对AA肉鸡生产性能和钙代谢的影响

为了检测沙棘叶粉作为一种饲料添加剂对爱拔益加(AA)肉鸡生产性能和钙代谢的作用效果,试验选择健康的1日龄AA肉仔鸡公雏240只.按体重相近的原则,随机分成4组:对照组(玉米-豆粕型基础饲粮)、基础饲粮+0.25%沙棘叶粉组、基础饲粮+0.5%沙棘叶粉组、基础饲粮+1%沙棘叶粉组.每组6个重复,每个重复10只.饲养试验共...

Effect of sea buckthorn leaves on growth performance and calcium metabolism in Arbor Acres broilers

The objective of this study was to investigate the effects of sea buckthorn leaves as feed additives on growth performance and calcium metabolism of Arbor Acres broilers.A total of 240 1-day-old healthy male Arbor Acre broilers were randomly used for 4 groups,each group with six replicates,and each replicate with ten AA broilers.The four groups were basal diet,basal diet supplemented with 0.25%,0.5% and 1% sea buckthorn leaves,respectively.The experiment was conducted for 49 d.The results showed that ADFI was significantly increased by 0.5% sea buckthorn leaves(P<0.05) and F/G was significantly decreased by 15.17% compared to control(P<0.05).The concentration of BGP,ALP and 1,25-(OH)2D3 in serum was increased significantly by 1% sea buckthorn leaves compared to control (P<0.05).The digestibility of calcium was not significantly affected by sea buckthorn leaves at any dose (P>0.05).But AA broilers fed supplemental 1% sea buckthorn leaves had significantly increased the digestibility of phosphorous by 64% (P<0.05).Tibia calcium,tibia phosphorus,bone ash and bone density were not significantly affected by sea buckthorn leaves (P>0.05).However,tibia phosphorus and bone density showed increasing trend with the increase of the sea buckthorn leave dose(P=0.0345;P=0.0123).In total,0.5% sea buckthorn leaves was beneficial to the growth performance in AA broilers.1% sea buckthorn leaves improved absorption of the calcium and phosphorous and deposition of calcium.Therefore,sea buckthorn leaves is one of potent phyto-additives to prevent AA broiler thigh disease.