全价颗粒饲料饲养舍饲山羊试验

An experiment with house-feeding goats with complete pellet feeds

试验山羊分为３组。预试期７ｄ，正试期６０ｄ。第１组１０只大白山羊，舍饲全价颗粒饲料，平均每天每只羊采食０．７９千克。第２组１０只波尔山羊与大白山羊杂交一代，舍饲条件与１组完全相同，平均每天每只羊采食０．９１千克全价颗粒饲料。第３组１０只大白山羊，每日放牧６～８ｈ（主要牧草品种为水草），平均每天每只羊补饲混合精料１７５ｇ。第１组增重比第３组提高１１８．５％（Ｐ＜０．０１）。第２组料肉比比第１组低２９．２４％（Ｐ＜０．０１）。第２组只月收入是第１组的４．０２倍，第１组是第３组的１８．５倍（Ｐ＜０．０１）。试验结果证明，山羊完全可以舍饲，舍饲山羊的经济效益大大超过放牧山羊，同时品种改良可以大大提高饲料利用率。

Experimental goats were allotted to one of 3 groups.A7-d pretrial period by a 60-d trial regular period. Group 1,consisting of 10 Dabai goats,was house-fed 0.79kg of complete pellet feeds daily per goat.Group 2, consisting of 10 F1 offspring of Boer and Dabai goats,was house-fed 0.91kg of complete pellet feeds daily per goat in the same way as group 1.Group 3,consisting of 10 Dabai goats, grazed mainly on water plants 6～8 h daily, and was supplemented with 175g of mixed concentrate per goat daily. Group 1 gained 118.5% more than group 3(P<0.01).Group 2 had a mutton to feed ratio 29.24% lower than group 1 (P<0.01). The results indicated the feasibility of goat house feeding, a greater economic return of house- fed goats over grazing goats,and the important role of breed improvement in improving feed efficiency.