冷季舍饲对贾洛羊生产性能的影响研究

Influence of Drylot Feeding in Cold Season on the Production Performance of Jialuo Sheep

针对高寒牧区羊只冷季严重掉膘的问题,以贾洛羊为试验对象进行120 d舍饲试验。结果表明:舍饲条件下经过120 d的饲喂,公、母羔羊的增长率分别为157.72%±41.21%和162.84%±26.85%,显著高于对照组的公羔羊(P<0.05);周岁贾洛羊公、母羊掉膘率分别为3.50±2.10%和3.38%±3.37%,极显著低于对照组的公、母羊(P<0.01);贾洛羊成年公羊的掉膘率为6.48%±4.40%,极显著低于对照组的公、母羊(P<0.01),母羊的掉膘率为8.25%±1.72%,低于对照组的公羊(P>0.05),极显著低于对照组的母羊(P<0.01);试验组羔羊成活率比对照组提高5.00%,周岁羊死亡率比对照组减少5.00%,成年羊死亡率比对照组减少10.00%。

The Jialuo sheep were raised 120d with drylot feeding in order to investigate the weight loss of sheep in cold season. The results showed that under the condition of drylot feeding, the growth rate of male and female lamb of experimental group were 157.72%±41.21% and 162.84%±26.85% respectively, and significantly higher than that of the male lamb of control group; the weight loss rate of male and female sheep of experimental group were 3.50%±2.10% and 3.38%±3.37% respectively, and significantly lower than those of control group; the weight loss rate of rams was 6.48%±4.40%, lower than that of rams and ewes of control group, the weight toss rate of ewes was 8.25%±1.72%, lower than that of rams of control group, lower significantly than that of ewes of control group; the survival rate of lamb experimental group increased by 5.00% compared with the control group, the mortality of 1 year-old and adult sheep of experimental group reduced by 5.00% and 10.00% compared with the control group.