循环牛肉小母牛的繁殖特点与前列腺素模拟luprostiol治疗。

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Kiracofe GH,赖特JM,纽比TJ

循环牛肉小母牛的繁殖特点与前列腺素模拟luprostiol治疗。

以及动物生殖部。技术部1988;30 (5):931 - 6。

PubMed ID

16726535 (在PubMed

]

文摘

后一百二十杂交安格斯小母牛,展出17 - 23 d发情周期,被分为六组,每组20小母牛和管理2毫升贝聿铭丙二醇含有0(控制),3.75,7.5,15.0或30.0毫克的luprostiol,或生理盐水含有0.5毫克cloprostenol(组1到6,分别)。小母牛被观察到发情期每6 h和治疗都是6.5 - 8.0 d后观察小母牛站发情。收集血液样本在每个组治疗后10小母牛。血清孕激素化验。同步时间被认为是120 h后管理luprostiol或cloprostenol。有0,16、17、18、20和18小母牛在发情同步期间观察到的1到6组,分别。血清孕酮浓度低于1 ng / ml 0, 8、9、10、10、10的小母牛从血液样本已经被六组。所有观察到的小母牛发情是人工受精。在同步期间,0,12日,14日,15日,16日和10个小母牛怀孕1到6组,分别。注射的时间间隔为89小母牛发情表现出在同步发情周期平均为49.0 h和没有不同luprostiol和cloprostenol治疗组。 Control heifers returned to estrus an average of 13.2 d after the treatment. The number of heifers that conceived at first insemination, regardless of when estrus occurred, was 16, 15, 16, 16, 16 and 12, and the total number that conceived at the first and second inseminations was 18, 18, 17, 19, 19 and 16 for Groups 1 through 6, respectively. Based on serum progesterone concentration and/or interval from treatment to estrus, 15 and 30 mg of luprostiol effectively regressed corpora lutea (100%) when administered between 6.5 and 8.0 d after estrus, and the estrous response and conception rate for these two groups equalled or exceeded that of the control and cloprostenol groups.

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药物

Luprostiol