快大型黄羽肉种鸡VD3需要量研究

王一冰,陈芳,苟钟勇,李龙,林厦菁,张盛,蒋守群

Requirement of Vitamin D3 on Fast-Growing Yellow-Feathered Breeder Hens

WANG YiBing,CHEN Fang,GOU ZhongYong,LI Long,LIN XiaJing,ZHANG Sheng,JIANG ShouQun

表5 饲粮VD3添加水平对黄羽肉种鸡胫骨指标的影响

Table 5 Effects of dietary VD3 supplemental level on tibial characteristics of yellow-feathered breeder hens

项目 Items VD3添加水平 VD3 supplemental level (IU·kg-1) SEM P 0 800 1600 2400 3200 4000 VD3 线性 Linear 二次 Quadratic 脱脂胫骨比例 Dehydrated and degreased weight/BW (%) 0.33b 0.34ab 0.35ab 0.35ab 0.36ab 0.38a 0.01 0.041 0.012 0.053 骨密度 Bone density (g·cm-3) 0.22b 0.26ab 0.26ab 0.26ab 0.26ab 0.33a 0.01 0.003 0.047 0.125 胫骨折断力 Broking strength of tibia (N) 250.41 266.71 255.94 259.56 259.96 288.10 17.83 0.761 0.261 0.434