快大型黄羽肉种鸡VD<sub>3</sub>需要量研究

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 D₃on Fast-Growing Yellow-Feathered Breeder Hens

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

表8 饲粮VD₃添加水平对子代肉鸡胫骨指标的影响

Table 8 Effects of dietary VD₃supplemental level on tibial characteristics of yellow-feathered broiler progeny

项目 Items	VD₃添加水平 VD₃ supplemental level (IU·kg^-1)						SEM	P
项目 Items	0	800	1600	2400	3200	4000	SEM	VD₃	线性 Linear	二次Quadratic
脱脂胫骨比例 Dehydrated and degreased weight/BW (%)	0.31	0.31	0.35	0.34	0.35	0.34	0.02	0.706	0.213	0.305
骨密度 Bone density (g·cm^-3)	0.13b	0.15a	0.14a	0.13b	0.13ab	0.14a	0.01	0.044	0.958	0.741
胫骨折断力 Broking strength of tibia (N)	205.04b	223.66ab	247.94ab	219.34ab	242.63ab	269.99a	11.48	0.010	0.002	0.143