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- Title
不同营养水平日粮对妊娠期西门塔尔牛及其犊牛的影响.
- Authors
脱征军; 张建勇; 肖爱萍; 张凌青; 晁雅琳; 徐 寒; 蒋秋斐; 李 欣
- Abstract
In order to explore the effects of diets with different nutritional levels on the reproductive performance of pregnant cows, 40 Simmental pregnant cows with 2-5 parities and similar body weight were randomly divided into 4 groups. Then, we set up low, medium and high nutritional-level groups and control group according to the breeding standards of beef cattle. During the experiment, the test cattle were weighed every 2-3 months, and the calving conditions, the first birth weight as well as the weight gain of the calves were counted. The results showed that the cows in the late period of pregnancy with better body condition can meet the needs of production by providing medium-nutritional-level diet (energy level was 10% lower than the national standards, protein level was 5% lower than the national standards). And higher benefits could be obtained in actual production. This experiment provided the ration preparation according to local conditions for beef cattle breeding, which had important reference value for saving the breeding cost and improving the breeding efficiency.
- Publication
Journal of Anhui Agricultural Sciences, 2023, Vol 51, Issue 17, p81
- ISSN
0517-6611
- Publication type
Article
- DOI
10.3969/j.issn.0517-6611.2023.17.018