草地植物添加剂对肉牛生长性能的影响

发布时间：2019-07-26 21:53

【摘要】：通过对草地植物添加剂的最佳配方、最适量以及肉牛的最佳育肥方式对肉牛日增重、屠宰率、净肉率以及肉品质和风味的影响进行研究,旨在分析草地植物添加剂对肉牛生长性能的影响。结果表明,草地植物添加剂能促进肉牛的快速生长,提高肉牛的日增重,其中对于犊牛(C)、架子牛(S)和基础母牛(B)日增重效果最明显的分别是草地植物添加剂C3(44%松针+24%艾叶+12%黄芪+8%微量元素)(P0.01)、S3(48%松针+16%艾叶+8%大蒜+10%黄芪+18%微量元素)(P0.01)和B3(36%松针+14%艾叶+10%大蒜+12%黄芪+28%微量元素)(P0.01);草地植物添加剂的最适量的筛选试验表明,各年龄段的肉牛的草地植物添加剂的添加量占日粮的3.5%育肥效果最明显(P0.01);在北方冷季最佳的育肥方式为舍饲育肥。综上,在北方的寒冷季节养殖肉牛以占日粮3.5%的第3类(C3、S3、B3)草地植物添加剂配合舍饲增肥效果最明显。
[Abstract]:The effects of the best formula of grassland plant additive, the most appropriate amount and the best fattening method of beef cattle on daily weight gain, slaughtering rate, net meat percentage, meat quality and flavor of beef cattle were studied in order to analyze the effect of grassland plant additive on the growth performance of beef cattle. The results showed that grassland plant additive could promote the rapid growth of beef cattle and increase the daily weight gain of beef cattle. Among them, the most obvious daily gain effect on calf (C), shelf cattle (S) and basic cow (B) was grassland plant additive C3 (44% pine needle 24% Ailaiye 12% Astragalus membranaceus 8% trace elements) (P01). S3 (48% pine needle 16% garlic 8% garlic 10% Astragalus membranaceus 18% trace elements) and B3 (36% pine needle 14% garlic 10% garlic 12% astragalus 28% trace elements) (P01); The optimum screening experiment of grassland plant additives showed that the addition of grassland plant additives accounted for 3.5% of the diet of beef cattle of all ages had the most obvious fattening effect (P01), and the best fattening method in the cold season of northern China was to fattening and fattening. In summary, the third type (C _ 3, S _ 3, B3) grassland plant additive, which accounted for 3.5% of the diet, had the most obvious effect on fattening beef cattle in the cold season of northern China.
【作者单位】：内蒙古农业大学草原与资源环境学院;农业部饲草栽培加工与高效利用重点实验室;国家开发银行内蒙古分行;
【基金】：国家现代牧草产业技术体系(CARS-35) 内蒙古自治区中加饲用作物试验与示范项目国家自然基金项目(31360585);国家自然基金面上项目(31572461)
【分类号】：S823.5

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