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首页> 外文期刊>American Journal of Veterinary Research >Effect of administration of a controlled-release monensin capsule on incidence of calving-related disorders, fertility, and milk yield in dairy cows
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Effect of administration of a controlled-release monensin capsule on incidence of calving-related disorders, fertility, and milk yield in dairy cows

机译：施用控释莫能菌素胶囊对产奶牛产犊相关疾病，生育力和产奶量的影响

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OBJECTIVE: To determine the effect of a controlled-release monensin capsule administered at cessation of lactation on incidence of calving-related disorders, fertility, and milk yield in dairy cows. ANIMALS: 290 dairy cows treated with monensin and 290 untreated control cows. PROCEDURE: Treated cows received a capsule that released monensin at 335 mg/d for 95 days. Incidence of calving-related disorders; daily milk yield up to 20 days postpartum; test-day milk yield, fat, protein, and mature-equivalent 305-day milk production; and body condition score at calving were determined. Reproductive variables were conception rate at first service, pregnancy rate, and calving-to-conception interval. RESULTS: Cows treated with monensin were 2.1 times as likely to develop dystocia and 0.8 times as likely to develop metritis as control cows. For milk yield, there was an interaction of treatment X time X parity. In multiparous cows, monensin significantly improved milk yield at test days 4 and 7. In addition, monensin increased body condition score at calving. CONCLUSIONS AND CLINICAL RELEVANCE: Despite increasing the likelihood of developing dystocia and metritis, administration of monensin improved the lactational performance of multiparous cows and may be a promising additive for use at the time of cessation of lactation.
机译：目的：确定在哺乳期停止服用莫能菌素控释胶囊对产犊牛产犊相关疾病，生育力和产奶量的影响。动物：用莫能菌素处理的290头奶牛和未经处理的290头对照奶牛。程序：治疗的母牛接受了以335 mg / d释放莫能菌素的胶囊，持续95天。产犊相关疾病的发生率;产后20天内每天的牛奶产量;试验日产奶量，脂肪，蛋白质和相当于成熟的305天产奶量;确定产犊时的身体状况得分。生殖变量是初诊时的受孕率，怀孕率和产卵间隔。结果：经莫能菌素处理的母牛发生难产的可能性是对照母牛的2.1倍，发生子宫炎的可能性是对照组的0.8倍。对于牛奶产量，处理X时间X平价之间存在相互作用。在多胎牛中，莫能菌素在第4和第7天的测试中显着提高了牛奶产量。此外，莫能菌素在产犊时提高了身体状况评分。结论和临床意义：尽管莫能菌素的使用增加了难产和子宫炎的可能性，但莫能菌素的使用改善了多头母牛的泌乳性能，可能是有前途的停止泌乳的添加剂。

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