动物医学进展2025，Vol.46Issue(8)：25-32,8.
宁夏地区奶牛产后酮病对生产性能的影响
Effects of Postpartum Ketosis on Production Performance of Dairy Cows in Ningxia Region
摘要
Abstract
This study investigated the incidence of postpartum ketosis in dairy cows in five large-scale farms in Lingwu city,Ningxia Hui Autonomous Region,during the period from April 2021 to April 2023,summa-rized and generalized the incidence pattern of postpartum ketosis in dairy cows,and focused on the effects of ketosis on the production performance and reproduction performance of dairy cows.The results of the survey on the incidence pattern of ketosis in dairy cows showed that:the incidence rate of postpartum keto-sis in dairy cows in Lingwu city was 28.39％,of which the incidence rate of clinical ketosis was 4.6％and the incidence rate of subclinical ketosis was 23.79％;there were differences in the incidence rates of differ-ent seasons,with both clinical ketosis and subclinical ketosis occurring at a high rate in spring and summer and at a low rate in fall and winter;the incidence rate of ketosis increased with the number of parities;keto-sis often occurred 2-15 days after delivery,with 3-8 days postpartum being the most prevalent.The ketosis often occurs in the postpartum period from 2 to 15 days,with the highest incidence in the postpartum peri-od from 3 to 8 days;Ketosis was significantly correlated with true stomach displacement(P＜0.001),and the incidence of true stomach displacement increased after the development of ketosis;the development of ketosis affected the lactation performance of cows,the peak day of clinical ketosis was delayed by 3.57 d compared with cows in the healthy group,the peak yield was reduced by 0.29 kg,and the persistence was increased by 0.07,the peak day of subclinical ketosis was advanced by 9.11 d compared with cows in the healthy group,and peak yield was increased by 1.18 kg,and persistence was lowered by 0.21 compared with the healthy group;moreover,first conception rate was reduced in all parities,the most significant decrease in first conception rate was in 3rd parity cows.The peak day of subclinical ketosis was 9.11 d earlier than that of cows in the healthy group,peak yield was 1.18 kg higher,and persistence was 0.21 lower than that of cows in the healthy group.In addition,the first conception rate of cows with ketosis was reduced in all parities,and the reduction in the first conception rate of cows with 3rd parity was the most significant.In Ningxia region,most of the ketosis in dairy cows occurs 3-8 days after parturition,and has the characteris-tics of high incidence in spring and summer,low incidence in autumn and winter,the incidence of ketosis ri-ses with the increase of parities;ketosis increases the prevalence of true stomach displacement in cows,and affects the lactation and reproduction performance of cows and reduces the rate of first mating conception.关键词
奶牛/酮病/能量负平衡/规律调查/季节特征Key words
Dairy cow/Ketosis/Negative energy balance/Regular survey/Seasonal characteristics分类
农业科技引用本文复制引用
王子昂,王逢博,张超,韦峰,靳亚平,张海森,袁亚林,陈华涛..宁夏地区奶牛产后酮病对生产性能的影响[J].动物医学进展,2025,46(8):25-32,8.基金项目
国家自然科学基金面上项目(32373088) （32373088）
