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Studies on Comparison of Synthetic Prostaglandin F2a and GnRH on Conception Rate in Infertile Cows

KrishiKosh

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Title Studies on Comparison of Synthetic Prostaglandin F2a and GnRH on Conception Rate in Infertile Cows
 
Creator Sowmya, T.
 
Contributor Honnappa, T.G.
Krishanaswamy, A.
Sudha, G.
Shridhar, N.B.
 
Subject Studies on Comparison of Synthetic Prostaglandin F2a and GnRH on Conception Rate in Infertile Cows
 
Description PG Thesis
The aim of this study was to investigate the effect of PGF 2 , GnRH and
combination of GnRH and PGF 2 on pregnancy rates in repeat breeder crossbred cows.
Forty crossbred repeat breeding cows and ten normal cyclic cows were selected for the
study. The animals were randomly divided into four equal groups of ten each. Group I,
cows were treated with 500μg of PGF 2 (Clostenol™) I/M and timed insemination
performed at 72 and 96 hours. Group II cows were treated with GnRH (Receptal®) 20μg
I/M immediately artificial insemination. Group III cows were treated with 500μg of PGF
2 (Clostenol™) I/M and insemination at observed along with 20μg of GnRH
(Receptal®) immediately after insemination. Group IV cows did not receive any
treatment twice artificial insemination was performed with good quality semen and
served as control. Blood samples were collected from all the cows before insemination.
In present study, 90, 100, and 90% of the cows treated only with PGF 2 , GnRH alone
and combination of PGF 2 and GnRH respectively ovulated, while in untreated control
repeat breeding cows, ovulatory response was observed as 80%. The first service
pregnancy rates in Groups I to IV were 50, 60, 70, and 30%, respectively. These results
indicate that the pregnancy rate in crossbred cows could be improved by hormonal
therapy. Blood serum biochemical profiles showed that, cholesterol, total protein and
albumin concentrations were significantly lower in repeat breeding cows; while the
serum globulin did not differ between repeat breeding and normal fertile cows. However,
serum urea concentration was significantly higher in repeat breeding cows compare to
normal cyclic cows.
 
Date 2016-11-14T12:50:55Z
2016-11-14T12:50:55Z
2013-06-15
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/85387
 
Language en
 
Format application/pdf
 
Publisher Karnataka Veterinary, Animal and Fisheries Sciences University, Bidar