摘要
按同质原则将28只试羊(3～3.5月龄)分为4个饲粮处理组,采用3因子(2×2×2)设计,研究两个营养水平(A因子,A1-0.9NRC和A2-0.8NRC)下不同饲粮组合(B因子,B1-添加甜菜渣和B2-不添加甜菜渣)对不同杂交组合(C因子,C1-波德代(♂)×蒙古羊(♀),C2-陶塞特(♂)×蒙古羊(♀))的育肥效果.结果表明,A、B、C三因子对试羊平均日增重均无显著影响(P>0.05),仅正试期头20 dC2日均增重显著(P<0.05)高于C1.A1水平羔羊平均日采食量极显著(P<0.01)低于A2,而饲料转化率及熟肉率极显著(P<0.01)高于A2.B1正试期后40 d日均增重有高于B2的趋势,而GR值有低于B2的倾向.
The three factorial designing of 2×2×2 and 28 lambs which they were divided into four groups were adopted to investigate the fattening effects of two levels of DE and CP (factor A, A1—0.9NRC, A2— 0.8NRC) and different diet combinations (factor B, B1, B2—with and without beet Pulp)on crossbred male lambs (3~3.5 months age) of Borderdale (♂)×Mongolian (♀) (14 lambs) and Poll Doset (♂)×Mongolian (♀) (14 lambs). The results indicated that there were no significant difference(P>0.05)on ADG of lambs between two treatments for the factor A, factor B, factor C and their interaction, except that during the first 20 days, the ADG of C2 was higher than that of C1 (P<0.05). Compared with A2, the intake of lambs fed on A1 was higher (P<0.01), but the FCR of A2 was much lower (P<0.01). During the last 40 days of the trial, a tendency indicated that the ADG of B1 was higher than that of B2, and its GR value was lower tendency than B2.
出处
《甘肃农业大学学报》
CAS
CSCD
2004年第5期483-488,共6页
Journal of Gansu Agricultural University
基金
中组部
中央金融工委青年专家国情考察团资助项目(0030707)
关键词
羔羊
饲粮
生产性能
屠宰性能
lamb
diet
productive performance
slaughter performance
