【摘要】 [目的]为研究饲养模式对科尔沁肉牛育肥性能的影响,特开展本试验研究,以期为农牧民提供饲养育肥牛的技术指导。[方法]选取体重体型均等的科尔沁肉牛架子牛120头,随机分为试验组1、试验组2与对照组,每组各40头。试验组1根据资料与经验制定为期185 d的饲养方案1,试验组2对养殖户自有饲养模式的饲料量与精粗配比优化后制定为期245 d的饲养方案2,对照组按照养殖户以往模式进行饲养,育肥期结束后称量体重,计算各组日增重数据。[结果]结果显示,试验组2的增重比试验组1与对照组分别提高37.2%与6.4%;试验组2与对照组的饲料利用率显著低于试验组1;经济效益方面试验组2的效益高于试验组1与对照组。结果表明试验组2为较合适的育肥牛饲养模式。[结论]试验证明,制定科学、系统的饲养模式,以合理的育肥时长、饲料摄入及精心的饲养管理,能够提高科尔沁肉牛育肥牛的育肥性能并获得更高的经济效益。更多还原

【Abstract】 [Objective] In order to study the effects of feeding patterns on the fattening performance of Horqin beef cattle, we carried out this research and hoped to offer technical guidance for feeding fattening cattle to herdsmen. [Method] 120 feeder cattle with similar weight were chosen and randomly divided into experimental group 1, experimental group 2 and the control group with 40 cattle in each group. Based on the data and experience, experimental group 1 was formulated 185-days feeding program. In experimental group 2, the feeding program for a period of 245-days was formulated after optimizing the feed amount and the concentrate-roughage ratio of farmers’ own feeding mode. The control group was fed according to the previous pattern of farmers. At the end of the fattening period, the body weight was weighed and the daily gain of each group were calculated. [Result] The result showed that the weight gain of experimental group 2 was 37.2% and 6.4% higher than that of experimental group 1 and control group; the feed utilization rate of experimental group 2 and control group was significantly lower than that of experimental group 1; in terms of economic benefit, the experimental group 2 was higher than that of experimental group 1 and control group. The results showed that the experimental group 2 was a more appropriate feeding pattern for fattening cattle. [Conclusion] The experiment proved that the scientific and systematic feeding patterns, reasonable feeding time, feed intake and careful feeding management can improve the fattening performance of Horqin beef cattle and obtain higher economic benefits.更多还原