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Induction Of Estrus In Anestrus Murrah Buffaloes And Programmed Breeding

KrishiKosh

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Title Induction Of Estrus In Anestrus Murrah Buffaloes And Programmed Breeding
Buffalo Bulletin (June 2015) Vol.34 No.2
 
Creator Thangapandiyan, M.
Pothiappan, P.
Palaniappan, R.M.
Joseph, E. Samual
Kathiresan, D.
 
Subject PMSG
Norgestomet
Anestrus
Conception
 
Description This study was designed to evaluate the use of norgestomet ear implant and PMSG to induce ovulatory oestrus in post-partum anestrus Murrah buffaloes. Twenty post-partum Murrah buffalo cows were selected for this study. Rectal palpation of ovaries was done twice at a 10-day interval and the buffaloes were confi rmed as anestrus based on the palpation of ovaries. All the twenty buffaloes were given 6 mg of norgestomet ear implant and 2 ml of Syncromate-B injection containing 5 mg of oetradiol valerate and 3 mg of norgestomet. The implants were removed on day 10 and 500 IU of PMSG was administered intramuscularly at the time of removal. The response to the treatment was 100%. The onset, duration and intensity of estrus were assessed. The average time taken for the onset of estrum was found to be 37+0.433 h (36-40 h) and the average duration of estrum was 20.4+0.674 h (18-24 h). The percentages of animals which
exhibited intense, normal and weak intensity of estrum were 35%, 50% and 15% respectively. The animals were inseminated with frozen semen at 48 and 72 h after the removal of the implants. Seven animals (35%) conceived with the first artificial insemination and four animals (20%) conceived with the second artificial insemination. The overall conception rate over two inseminations was 55%.
It is evident from this study that the norgestomet ear implant with PMSG successfully induced estrum in Murrah buffaloes and the conception rate of 55 percent is comparable with that of normal cycling buffaloes.
 
Date 2016-06-14T11:50:32Z
2016-06-14T11:50:32Z
2015-06
 
Type Article
 
Identifier http://krishikosh.egranth.ac.in/handle/1/67337
 
Language en
 
Format application/pdf
 
Publisher Buffalo Bulletin