Effects of active immunization against a synthetic peptide sequence of the inhibin -subunit on plasma gonadotrophin concentrations, ovulation rate and lambing rate in ewes
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چکیده
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The Effect of Active Immunization against Inhibin and of Fsh Supplementation on Ovulation Rate in Heifers
Inhibin is released during late prophase by suppressing the FSH secretion without affecting LH secretion. Immunization against inhibin will increase FSH synthesis leading to ovulation rate. As both immunization against inhibin and FSH injection could increase ovulation rate, therefore, an interaction of both treatment should act synergically or addively. Immunized group (n=10) were immunized wi...
متن کاملPassive immunization of ewes against an inhibin-like peptide increases follicle-stimulating hormone concentrations, ovulation rate, and prolificacy in spring-mated ewes.
The objective of this experiment was to determine whether passive immunization against a synthetic inhibin-like peptide (alpha-IF) increases FSH secretion and reproductive performance of ewes bred in the spring. Crossbred ewes were assigned to three treatment groups of 10 ewes each. Progesterone-releasing pessaries (CIDR-G) were inserted and left in place for 12 d. The CIDR-G were removed on Ap...
متن کاملGonadotrophin concentrations and ovulation rates in Suffolk ewes actively or passively immunized against inhibin alpha.
Mature Suffolk ewes were either actively or passively immunized against the synthetic fragment of porcine inhibin alpha, pI alpha(1-30), to determine the effects on gonadotrophin secretion and ovulation rate. Thirteen control ewes were immunized against human serum albumin, 12 ewes were actively immunized against pI alpha(1-30) and 36 ewes were passively immunized with pI alpha(1-30) antiserum....
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ژورنال
عنوان ژورنال: Reproduction
سال: 1992
ISSN: 1470-1626,1741-7899
DOI: 10.1530/jrf.0.0950175