| Fertility in zebu cattle (Bos indicus) after prostaglandin administration and artificial insemination. | |
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MedLine Citation:
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PMID: 10409417 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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A total of 137 cycling zebu cows, each receiving a single dose of prostaglandin PGF(2alpha)were used in an oestrus synchronization programme on three different farms. Of the cows on the three farms, 60.6 and 90.5% showed overt oestrus and luteolysis, respectively. Pregnancy rate to fixed time inseminations following single injection of PGF(2alpha)was 61.4% for farm 1, significantly higher than the values of 45.7 and 46.9% for farms 2 and 3, respectively. The pregnancy rates to second service of rebred cows were 53.3, 50.0 and 50.0% for the three farms, respectively, with no significant differences between each. Fertility classification of the cows based on progesterone (P(4)) concentration showed that 6.6% of cows on the three farms were incorrectly diagnosed as having corpora lutea; 2.9% of them had incomplete luteolysis and 5.1% may have lost their embryos between days 21 and 45 post-insemination. The pregnancy rate was 10% higher in the rainy season than in the dry season. Cows with body condition scores of 3 and 4 had a higher overall pregnancy rates than those with a body condition score of 2. The findings of this study further confirm the luteolytic efficacy of prostaglandin in inducing oestrus in zebu cattle and indicate that the nutritional status of the cows must be satisfactory before embarking on oestrus synchronization programmes. |
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Authors:
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P I Rekwot; E O Oyedipe; E Mukasa-Mugerwa; V O Sekoni; O P Akinpelumi; A A Anyam |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Veterinary journal (London, England : 1997) Volume: 158 ISSN: 1090-0233 ISO Abbreviation: Vet. J. Publication Date: 1999 Jul |
Date Detail:
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Created Date: 1999-09-02 Completed Date: 1999-09-02 Revised Date: 2009-11-03 |
Medline Journal Info:
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Nlm Unique ID: 9706281 Medline TA: Vet J Country: ENGLAND |
Other Details:
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Languages: eng Pagination: 53-8 Citation Subset: IM |
Copyright Information:
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Copyright 1999 Baillière Tindall. |
Affiliation:
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Artificial Insemination Unit, National Animal Production Research Institute, P.M.B. 1096, Zaria, Nigeria. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Animal Feed Animals Cattle / physiology* Corpus Luteum / physiology Dinoprost / administration & dosage, standards, therapeutic use* Estrus / physiology Female Fertility / physiology* Insemination, Artificial / veterinary* Male Nigeria Nutritional Status / physiology Pregnancy Progesterone / blood Radioimmunoassay / veterinary Seasons |
| Chemical | |
Reg. No./Substance:
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551-11-1/Dinoprost; 57-83-0/Progesterone |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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