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10 基于二次曲线回归分析的最适饲粮VD3添加水平估计

Table 10 Estimations of the optimal level of supplemental VD3 based on quadratic regressions

变量 Variable 回归曲线 Regression equation R2 P VD3需要量 VD3 requirement (IU·kg-1) 种鸡 Breeder hens 蛋壳强度Shell strength (kgf) Y = 3.39 - 0.0000000468X2 + 0.000155X 0.172 0.035 1650 蛋壳厚度 Shell thickness (mm) Y = 0.308 - 0.00000000346X2 + 0.0000126X 0.105 0.014 1828 血浆磷含量 Phosphorus content in plasma (mmol·L-1) Y = 76.36 - 0.0000000242X2 + 0.0000697X 0.417 0.001 1442 血浆碱性磷酸酶活性 AKP activity in plasma (U/100 mL) Y = 76.36 + 0.00000292X2 - 0.0182X 0.349 0.002 3123 1日龄子代鸡 1-d progeny broilers 血浆钙含量 Calcium content in plasma (mmol·L-1) Y = 2.34 - 0.00000000947X2 + 0.0000713X 0.475 <0.001 3768 血浆磷含量 Phosphorus content in plasma (mmol·L-1) Y = 1.46 - 0.000000042X2 + 0.000202X 0.298 0.001 2407 血浆碱性磷酸酶活性 AKP activity in plasma (U/100 mL) Y = 164.45 + 0.00000468X2 - 0.0326X 0.185 0.016 3489