酮病对奶牛生产性能和繁殖性能的影响

发布时间：2018-09-11 21:01

【摘要】：酮病是奶牛围产期常发生的主要营养代谢病,奶牛酮病给奶牛业造成了严重的经济损失。为了探讨奶牛酮病对奶牛泌乳性能和繁殖性能的影响,以黑龙江省两个集约化和规范化大型奶牛场为试验场,选择产后7~28 d的泌乳荷斯坦奶牛97头,分为酮病组(47头)和健康对照组(50头),记录奶牛的年龄、体况、胎次及泌乳量等基本信息,检测血浆中β-羟基丁酸(BHBA)含量,并应用奶牛场阿菲金软件信息系统统计奶牛泌乳早期泌乳性能及繁殖性能等各项指标。结果表明:酮病组奶牛与健康对照组奶牛比较泌乳周期显著增加,泌乳量显著降低(P0.05),干奶期时间差异不显著(P0.05);酮病组奶牛与健康对照组奶牛相比,配种次数、配种天数和产犊间隔显著增加(P0.05),初配天数和首次发情天数差异不显著(P0.05);酮病与真胃变位、胎衣不下、前胃弛缓、蹄病、乳房炎虽有相关性,但差异不显著(P0.05);说明奶牛患酮病时泌乳量显著降低,泌乳周期延长,同时配种次数、配种天数、产犊间隔的延长更不利于奶牛业的发展,将造成严重的经济损失。
[Abstract]:Ketosis is the main nutritional metabolic disease in dairy cows during perinatal period, and it causes serious economic losses to dairy cattle industry. In order to investigate the effect of ketosis on lactating performance and reproductive performance of dairy cows, 97 lactating Holstein cows were selected from two intensive and standardized large dairy farms in Heilongjiang Province for 728 days postpartum. The cows were divided into ketosis group (47 heads) and healthy control group (50 heads). The basic information of age, body condition, birth order and lactation quantity were recorded, and plasma 尾 -hydroxybutyric acid (BHBA) content was detected. The early lactation performance and reproductive performance of dairy cows were analyzed by Afigin software information system. The results showed that: compared with the healthy control group, the lactating cycle increased significantly, the lactation volume decreased significantly (P0.05), and the time of dry milk was not significantly different (P0.05), the number of breeding in ketodisease group was significantly higher than that in the healthy control group. The days of breeding and calving interval were significantly increased (P0.05), but the days of initial setting and first estrus were not significantly different (P0.05), while there was a correlation between ketosis and abomasum, placental coat, flaccid forestomach, foot and foot disease and mastitis. But the difference was not significant (P0.05), which showed that the milk production decreased significantly, the lactation period was prolonged, the number of times of breeding, the days of breeding and the prolongation of calving interval were not conducive to the development of dairy industry, which would cause serious economic losses.
【作者单位】：黑龙江八一农垦大学动物科技学院;
【分类号】：S858.236.5

【相似文献】