Risk factors for post partum ovarian dysfunction in high producing dairy cows in Belgium:: A field study
Risk factors for post partum ovarian dysfunction in high producing dairy cows in Belgium:: A field study
复制标题
DOI：
10.1016/s0093-691x(00)00234-x
复制
发表时间：
2000-03-01
期刊：
影响因子：
2.8
通讯作者：
de Kruif, A
中科院分区：
文献类型：
--
作者：
Opsomer, G;Gröhn, YT;de Kruif, A
对比利时6个管理良好的奶牛群中的334头高产奶牛进行了产后卵巢紊乱危险因素的流行病学研究。使用黄体酮谱密切监测卵巢活动，基于每周两次的rla分析，对乳脂中的黄体酮进行分析，从产犊后第10天开始，一直持续到确认新怀孕。注意产前、产后周期异常；奶牛被分为6个不同的类别。其中三个类别（正常轮廓，延迟周期和延长黄体期）是重要的，并使用多变量逻辑回归模型进行分析。产犊季节（马厩vs牧场，比值比(OR)=5.7），先前干燥期的延长（bbb77 vs小于或等于63天，OR=2.9），产犊问题（OR=3.6），阴道分泌物异常（OR=4.5），哺乳期第一个月的健康问题（临床疾病，OR=5.4；酮症，OR=11.3），临床参数表明严重的负能量平衡的出现显著增加了服役前周期延迟的风险。胎次（大于或等于4比1，or =2.5）、产犊问题（or =2.9）、产褥期紊乱的发生（or范围从3.5到11.0）、哺乳期第一个月的健康问题（or =3.1）以及产犊后卵巢周期的早期恢复（32 d, or =2.8）增加了服务前黄体周期延长的风险。(C) 2000年由爱思唯尔科学公司
An epidemiological study of risk factors for postpartal ovarian disturbances was carried out on 334 high-yielding dairy cows in 6 well-managed Belgian herds. Ovarian activity was closely monitored using progesterone profiles, based on twice weekly RLA-analysis for progesterone in milk fat, starting at 10 d after calving and continuing until the confirmation of a new pregnancy. Attention was focused on abnormal cyclicity during the preservice, postpartum period; cows were divided into 6 different categories. Three of these categories (normal profile, delayed cyclicity, and prolonged luteal phase) were of major importance and were analyzed using a multiple variable logistic regression model. Season of calving (stable vs pasture, odds ratio (OR)=5.7), an extended length of the previous dry period (>77 vs less than or equal to 63 d, OR=2.9), problem calvings (OR=3.6), abnormal vaginal discharge (OR=4.5), health problems during the first month of lactation (clinical disease, OR=5.4; ketosis, OR=11.3), and clinical parameters illustrating the appearance of a severe negative energy balance significantly increased the risk for delayed cyclicity before service. Parity (greater than or equal to 4 vs 1, OR=2.5), problem calvings (OR=2.9), occurrence of puerperal disturbances (OR ranged from 3.5 to 11.0), health problems during the first month of lactation (OR=3.1), and an early resumption of ovarian cyclicity after calving (32 d, OR=2.8) increased the risk for prolonged luteal cycles before service. (C) 2000 by Elsevier Science Inc.