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Luteal inadequacy as a possible cause of repeat breeding syndrome in dairy cattle

Indian Agricultural Research Journals

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Title Luteal inadequacy as a possible cause of repeat breeding syndrome in dairy cattle
 
Creator Honparkhe, M
Singh, Jagir
Dadarwau, D
Kumar, Ajeet
Gandotra, V K
 
Subject Estrous cycle; Luteal dysfunction; Luteal inadequacy; Progesterone; Repeat breeding
 
Description Repeat breeder (20) and 6 normal cycling (control) cattle were examined per rectally and blood samples were collected on days 0 (ovulation), 6, 7, 10, 12, 14 and 18 of the estrous cycle to study the cause of repeat breeding. The progesterone concentrations (P4) in control animals were I.593±0.41 on day 6 post ovulation and 2.935±I.26 ng/ml between days 77...12. Out of 20 repeat breeder animals, II (55%) were diagnosed as early (day 6 post ovulation) luteal deficient. Two animals (10%) showed lower progesterone than control during mid luteal phase (days 7-12 post ovulation). One animal (5%) was deficient in progesterone concentration during both early and mid luteal phase. In () animals (30%) the mean progesterone concentration remained 1.154±0.98 ng/ml throughout the luteal phase. rt appears fi'om the present study that the subnormal or delayed rising of plasma progesterone levels during different stages of luteal phase may be the possible cause of repeat breeding syndrome in dairy cattle. 
 
Publisher Directorate of Knowledge Management in Agriculture
 
Contributor —
 
Date 2011-01-27
 
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/3776
 
Source The Indian Journal of Animal Sciences; Vol 76, No 4 (2006)
0367-8318
 
Language eng
 
Relation http://epubs.icar.org.in/ejournal/index.php/IJAnS/article/view/3776/1538
 
Rights Copyright (c) 2014 The Indian Journal of Animal Sciences