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首页> 外文期刊>The Indian Journal of Animal Reproduction >INDUCTION OF CYCLICITY IN MURRAH BUFFALO-HEIFERS DURING SUMMER USING DIFFERENT HORMONAL PROTOCOLS
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INDUCTION OF CYCLICITY IN MURRAH BUFFALO-HEIFERS DURING SUMMER USING DIFFERENT HORMONAL PROTOCOLS

机译：使用不同的激素协议在夏季诱导毛拉水牛粪便的循环

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Twenty four sexually mature, acyclic buffalo heifers were randomly and equally divided into four groups. Group Awas kept as control in which no treatment was given. Group B received CIDR on day 0 (start of experiment), 5001.U. PMSG (day 9), removal ofCIDR (day 10) and 15001.U. eCG at the time of insemination. Group C animals were subjected to modified Ovsynch protocol where 5001.U. PMSG was administered (day 0) followed by 16 ug GnRH analogue (day 3), 500 ug cloprostenol (day 10) and second injection 16 ug GnRH (day 12). Group D animals received 500 mg hydroxyprogesterone and 10 mg estradiol valerate (day 0) followed by 500 ug cloprostenol and 5001.U. PMSG on day 7 and 9, respectively. Estrus was exhibited in 100% (Group B), 66.7% (Group C and D) and 33.3% (Group A). The duration of estrus was also higher in group B (28.2±6.12 hrs) as compared to group A (16.0±2.00 hrs) and group D (17.0+2.52 hrs). The pregnancy rate from insemination at induced estrus was 50.0, 50.0,16.7and 50.0 per cent in group B, D, C and A, respectively. The results of the present investigation revealed that different hormonal combinations were effective in inducing cyclicity and conception at first service as compared to untreated animals. Therefore, it is concluded thatuse of progesterone based protocols during summer season is good for induction of estrus and improved conception rates in acyclic sexually mature buffalo heifers.
机译：将二十四具性成熟的无环水牛小母牛随机分为四组。 A组保留为对照组，未给予任何治疗。 B组于第0天（实验开始）5001.U接受CIDR。 PMSG（第9天），移除CIDR（第10天）和15001.U。授精时的eCG。对C组动物进行改良的Ovsynch方案，其中5001.U。给予PMSG（第0天），随后给予16ug GnRH类似物（第3天），500ug氯前列腺素（第10天）和第二次注射16ug GnRH（第12天）。 D组动物接受500mg羟孕酮和10mg戊酸雌二醇（第0天），随后接受500ug氯前列腺素和5001.U。 PMSG分别在第7天和第9天。发情率分别为100％（B组），66.7％（C和D组）和33.3％（A组）。与A组（16.0±2.00小时）和D组（17.0 + 2.52小时）相比，B组（28.2±6.12小时）的发情持续时间也更长。 B，D，C和A组中，在发情期受精的受精率分别为50.0％，50.0、16.7和50.0％。本研究的结果表明，与未经治疗的动物相比，不同的激素组合在首次服药时可有效诱导周期性和受孕。因此，可以得出结论，在夏季使用基于孕激素的方案有利于诱发无环性成熟牛的发情期并提高受孕率。

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