Document Detail

Assessing the breeding efficiency of broiler breeder flocks by measuring sperm transfer into laid eggs.
MedLine Citation:
PMID:  7655905     Owner:  NLM     Status:  MEDLINE    
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.
G J Wishart; H J Staines
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  British poultry science     Volume:  36     ISSN:  0007-1668     ISO Abbreviation:  Br. Poult. Sci.     Publication Date:  1995 May 
Date Detail:
Created Date:  1995-10-02     Completed Date:  1995-10-02     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  15740290R     Medline TA:  Br Poult Sci     Country:  SCOTLAND    
Other Details:
Languages:  eng     Pagination:  317-23     Citation Subset:  IM    
Department of Molecular and Life Sciences, University of Abertay Dundee, Scotland.
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MeSH Terms
Chickens / physiology*
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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