摘要
以秦蒙二元杂交牛为对照组,丹秦蒙、利秦蒙和安秦蒙3个三元杂交肉牛分别为试验组,每组6头周岁左右阉牛进行为期100d的肥育对比试验,试验组平均日增重1341.10g、比对照组提高35.90%,精料增重比3.09、降低26.50%,千克增重效益4.78元、提高60.90%。试验组与对照组间各项指标的差异均达显著以上水平(P<0.05-0.001)。在肥育期增长率、饲料报酬和单位增重效益等重要指标上,均以安秦蒙组相对最高,因而红安格斯可做为当地肉牛三元杂交之首选终端父本。
Six yearling two-way crossbred steers of Qinchuan cattle and Mongolian cattle (Q×M) and 6 yearling three-way crossbred steers of Danish Red, Qinchuan cattle, and Mongolian cattle (D×Q×M), Limousine, Qinchuan cattle, and Mongolian cattle (L×Q×M), Angus, Qinchuan cattle, and Mongolian cattle (A×Q×M) were assigned as the control and experiment group to conduct the 100 d finishing experiment. In comparison with control group, the average daily gain of 1341. 1 g was increased by 35. 9%; the ratio of feeds and gain of 3. 09 was decreased by 26. 5%, and the profit of 4. 78 Yuan/per kg body gain was improved by 60. 9%, there was a significant difference between experiment and control group in all traits of the experiment (P<0. 05). The growth rate, feed efficiency and profit of body weight gain of A×Q×M were the highest among all crossbreds, therefore, Red Angus could be used as the terminal sire of three-way crossbreeding with local cattle.
出处
《黄牛杂志》
2005年第3期29-31,共3页
Journal of Yellow Cattle Science
