A hormone-based therapeutic strategy to reduce non-productive period in anestrus buffaloes during breeding and non-breeding season under field conditions

IF 0.2 4区农林科学 Q4 AGRICULTURE, DAIRY & ANIMAL SCIENCE

Buffalo Bulletin Pub Date : 2022-12-29 DOI:10.56825/bufbu.2022.4143568

Mahantswamy Kumarswamy Mallikerimath, S. Ghuman, Bilawal Singh

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引用次数: 0

Abstract

Sixty anestrus Murrah buffaloes were evaluated for the success rate of progesterone (P4) + estrogen (E2) + equine chorionic gonadotropin (eCG) protocol (Breeding season, BS=15; Non-breeding season, NBS=15) and estradoublesynch protocol (BS=15; NBS=15). The buffaloes subjected to P4+E2+eCG had higher (p>0.05) estrus induction response compared to estradoublesynch during BS (86.0 vs 80.0%, respectively) and NBS (73.3 vs 66.6%, respectively). Estrus period score at induced estrus in buffaloes subjected to either of protocols in BS or NBS was not different (p>0.05), however, pregnancy rate was lower (p<0.05) in buffaloes exhibiting <50 estrus period score in comparison to those exhibiting >50 score. Further, pregnancy rate (induced + spontaneous estrus) was better (p>0.05) using P4+E2+eCG compared to estradoublesynch protocol (73.3 vs 63.3%). In addition, the interval between start of a protocol and conception in P4+E2+eCG was less compared to estradoublesynch (p>0.05; 13.9±1.3 vs 17.5±3.1 days). In summary, P4+E2+eCG protocol is a better hormone-based strategy compared to estradoublesynch for anestrus buffaloes during breeding and non-breeding season under field conditions.

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在野外条件下，以激素为基础的治疗策略，以减少在繁殖期和非繁殖期的退情水牛的非生产期

采用孕酮(P4) +雌激素(E2) +马绒毛膜促性腺激素(eCG)方案(繁殖期，BS=15;非繁殖期，NBS=15)和发情双同步协议(BS=15;国家统计局= 15)。P4+E2+eCG与BS(分别为86.0 vs 80.0%)和NBS(分别为73.3 vs 66.6%)相比，P4+E2+eCG诱导的水牛的发情双同步反应更高(p < 0.05)。两组诱导发情期评分差异无统计学意义(p < 0.05)，但受孕率较低(p < 0.05)。此外，P4+E2+eCG与发情双同步方案相比，妊娠率(诱导+自发发情)更好(p>0.05) (73.3 vs 63.3%)。此外，P4+E2+eCG与estrad双同步相比，方案开始与受孕之间的间隔时间更短(p < 0.05;13.9±1.3 vs 17.5±3.1天)。综上所述，在野外条件下，对于繁殖期和非繁殖期的水牛来说，P4+E2+eCG方案是一种更好的基于激素的策略。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Buffalo Bulletin AGRICULTURE, DAIRY & ANIMAL SCIENCE-

CiteScore

0.50

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： Buffalo Bulletin is published quarterly in January-March, April-June, July-September and October-December. Contributions on any aspect of research or development, progress reports of projects and news on buffalo will be considered for publication in the bulletin.