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Seasonal variations in estradiol-17β and progesterone level during oestrus cycle in Malpura ewes

Indian Agricultural Research Journals

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Title Seasonal variations in estradiol-17β and progesterone level during oestrus cycle in Malpura ewes
 
Creator TAKARKHEDE, R C
HONMODE, J D
KADU, M S
 
Subject Ewes, Oestrus cycle, Steroid level
 
Description In cyclic ewes seasonal variation in estradiol- 17β  and progesterone were studied. The highest estradiol-17β level was observed on day of oestrus, wherein declined on days 4, 8 and 12, and again sharply elevated on day 16. The E2 -17β levels on day 0 and 4 were significantly higher. The progesterone level on day of oestrus was lowest and showed significant elevation on days 4, 8 and 12. The level then declined on day 16. The progesterone levels on day of oestrus, 4 and 8 were significantly higher in summer than that in monsoon season. A highly significant negative correlation between E2-17β and progesterone levels was observed during estrous cycle. The E2: P4 ratio was narrowest on day 0 and later progressively widened on days 4,8 and·1 2. On day 16 the ratio again reduced showing substantial reduction in progesterone and faster resumption of follicular activity.
 
Publisher Directorate of Knowledge Management in Agriculture
 
Contributor —
 
Date 2014-02-04
 
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/37551
 
Source The Indian Journal of Animal Sciences; Vol 72, No 4 (2002)
0367-8318
 
Language eng
 
Relation http://epubs.icar.org.in/ejournal/index.php/IJAnS/article/view/37551/16819
 
Rights Copyright (c) 2014 The Indian Journal of Animal Sciences