| Assessing the breeding efficiency of broiler breeder flocks by measuring sperm transfer into laid eggs. | |
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MedLine Citation:
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PMID: 7655905 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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1. The breeding efficiency of broiler flocks was assessed by estimating the numbers of spermatozoa trapped in a 5.5 mm2 area of the perivitelline layer of laid eggs. 2. In samples of approximately 60 eggs taken from flocks on the same day, the numbers of spermatozoa ranged from 0 to several hundred. 3. Within each sample of eggs, there appeared to be two distinct populations: eggs in which perivitelline spermatozoa could not be found; and eggs containing spermatozoa for which the logarithm of the number of perivitelline spermatozoa can be approximated by a normal distribution. 4. When data from 15 flocks were considered, the overall flock fertility was linearly correlated with: the median of the number of spermatozoa per 5.5 mm2 of perivitelline layer (r = 0.678); the mean of positive values of the logarithm of the number of spermatozoa (r = 0.620); and the proportion of sampled eggs in which the number of perivitelline spermatozoa was greater than 0 (r = 0.714). 5. Flock age was the major factor influencing fertility and all the variables of perivitelline sperm distribution. |
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Authors:
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G J Wishart; H J Staines |
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Publication Detail:
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Type: Comparative Study; Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: British poultry science Volume: 36 ISSN: 0007-1668 ISO Abbreviation: Br. Poult. Sci. Publication Date: 1995 May |
Date Detail:
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Created Date: 1995-10-02 Completed Date: 1995-10-02 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 15740290R Medline TA: Br Poult Sci Country: SCOTLAND |
Other Details:
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Languages: eng Pagination: 317-23 Citation Subset: IM |
Affiliation:
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Department of Molecular and Life Sciences, University of Abertay Dundee, Scotland. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Animals Chickens / physiology* Female Fertility Male Ovum / physiology Sperm-Ovum Interactions* Spermatozoa / physiology Vitelline Membrane / physiology |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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