杂交奶牛产犊时会阴部卫生评分、产褥期子宫疾病与繁殖效率之间的关系

Laryssa de Fátima Silva, Sara Adna de Oliveira, G. Moraes, N. Reis, Ricarda Santos
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引用次数: 0

摘要

滞留胎盘、元气大伤和临床子宫内膜炎是奶牛场的流行病,会导致经济损失,并降低奶牛生产系统中奶牛的寿命,因此研究潜在的易感因素非常重要。本研究旨在评估产犊期间会阴部卫生与胎盘滞留、元气大伤、临床子宫内膜炎发病率之间的关系,以及它们对杂交奶牛繁殖效率和淘汰率的影响。在两个牧场,通过肉眼观察,对产犊前和产犊期间的奶牛(n=101)会阴部污秽程度进行评估,并将其分为 1 级--无粪便,会阴部干燥;2 级--轻微有粪便,会阴部潮湿;3 级--轻度潮湿,会阴部被粪便覆盖(超过表面积的 10%)。产犊后,对奶牛进行肉眼观察和妇科评估,以确定胎盘残留、子宫内膜炎和临床子宫内膜炎。与卫生分数为 1 的奶牛相比,卫生分数为 2 或 3 的奶牛的胎盘滞留率(41.9% x 14.0%)、元气大伤率(32.5% x 14.0%%)和临床子宫内膜炎率(42.5% x 15.8%)较高。尽管没有报告显示会阴污秽度对繁殖率有明显影响,但产前杂交奶牛会阴污秽度与产后繁殖疾病的发生率有关。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Association between the perineal hygiene score at calving, puerperal uterine disorders, and reproductive efficiency in crossbreed dairy cows
Retained placenta, metritis, and clinical endometritis are prevalent diseases on dairy farms, leading to economic losses and reducing the longevity of dairy cows in dairy production systems, so it is important to investigate potential predisposing factors. The aim of this study was to evaluate the relation between perineal hygiene during calving and the incidence of retained placenta, metritis, clinical endometritis and their effect on reproductive efficiency and culling rates in crossbred dairy cows. At two properties, pre calving cows (n=101) were evaluated for perineal dirtiness before and during calving, by visual observation and classified in score 1 - free of feces and dry perineum; score 2 - slight presence of feces and moist perineum; score 3 - mild-wet perineum, covered by feces (over 10% of the surface). After calving, cows were subjected by visual observation and gynecological evaluation to identify retained placenta, metritis and clinical endometritis. Cows with a hygiene score of 2 or 3 showed higher rates of retained placenta (41.9% x 14.0%), metritis (32.5% x 14.0%%) and clinical endometritis (42.5% x 15.8%) than cows with a score 1. Even though no significant effects on reproductive rates were reported, the degree of perineal dirtiness in prepartum dairy crossbred cows is associated with the incidence of post calving reproductive diseases.
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