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Estrus response and fertility in postpartum ewes using progesterone and PMSG in tropical environment

Indian Agricultural Research Journals

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Title Estrus response and fertility in postpartum ewes using progesterone and PMSG in tropical environment
 
Creator DAS, G K
NAQVI, S M K
GULYANI, R
PAREEK, S R
MITTAL, J P
 
Subject Estrus, Fertility, PMSG, Postpartum, Progesterone, Sheep
 
Description Estrus response and fertility were assessed in postpartum (9 weeks) ewes using progesterone in combination with PMSG during winter and summer. Proportion of ewes those exhibited behavioural estrus were 71 %(5/7) and 91 %(10/11) during winter and summer respectively. The onset of estrus was relatively earlier during summer than that in winter. But the difference in mean intervals between seasons was not significant. However, the mean duration of estrus was shorter during winter compared to summer. Out of the ewes bred, the proportion of ewes those lambed at term was significantly higher during winter than that in summer. The present study indicates that use of progesterone in combination with PMSG can be used successfully for induction and synchronization of estrus in postpartum ewes. Better estrus response can be achieved during summer while winter season favours fertility in postpartum ewes.
 
Publisher Directorate of Knowledge Management in Agriculture
 
Contributor —
 
Date 2014-01-30
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
—
 
Format application/pdf
 
Identifier http://epubs.icar.org.in/ejournal/index.php/IJAnS/article/view/37261
 
Source The Indian Journal of Animal Sciences; Vol 71, No 12 (2001)
0367-8318
 
Language eng
 
Relation http://epubs.icar.org.in/ejournal/index.php/IJAnS/article/view/37261/16654
 
Rights Copyright (c) 2014 The Indian Journal of Animal Sciences