中国卡拉库尔羊注射双胎素效果试验

The Experimental Effect of Injecting Twinning Element to Karacul Lambers

对农一师十三团的750只中国卡拉库尔羊注射双胎素,以250只相同条件下饲养的羊作对照,结果注出双胎素的羊双胎率达到25.73%,而对照羊双胎率仅2.8%,净增加双羔22.93%.经核算,每只注射双胎素的母羊可以净增加收入28.54元,经济效益极显著.经试验证明,初产母羊双胎率低,仅12.30%,双羔死亡率达27.27%.6岁以上老母羊双胎率虽达到22.40%,但双羔死亡率高达23.14%.3、4、5岁母羊的双胎率均接近30%,双羔死亡率均在10%上下,试验效果最好.

750 Karacul lambers of the 13th regiment were injectedtwinning element and 250 lambers were in control experiment under thesame breeding circumstance. The twinning rate of the lambers injectedreached up to 25. 73%; while that of the controlled lambers was only 2.8% The net lamb increase was 22. 93%. The cost accounting is that eachinjected lam-ber can increase an income of 28.54(yuan), and so theeconomic evaluation is very significant. It was proved by the experimentthat the twinning rate of first lamber was lower, only 12.30% and itstwins death rate reached 27.27%. Older lamber above six, though thetwin-ning rate was 22. 40%, the twins death rate was 23.14%. The twinningrate of 3, 4, and 5 year-old lamber was close to 30% The death ratewere all below 10% . Their experiment effect were the best.