Document Detail

Effects of setting eggs small end up on hatchability and posthatching performance of broilers.
MedLine Citation:
PMID:  2097029     Owner:  NLM     Status:  MEDLINE    
1. Hatchability of fertile eggs incubated with their small ends up (SEU) was 16 to 27% lower than for eggs set with their large ends up (LEU). In addition, the SEU position produced more nonviable chicks. 2. There were no differences in post-hatching performance between the two incubation treatments. 3. A survey in a commercial hatchery revealed that the frequencies of eggs set upside down by mistake varied from 0.3% to 3.4%. The setting of eggs upside down was attributed not to difficulties in distinguishing the large and small ends of the eggs but to human error. A decrease in the number of Grade-A chicks of about 0.2% was observed for every 1% of eggs set upside down, suggesting it may be of economic importance to ensure that the eggs are set properly with their large ends up.
F Bauer; S G Tullett; H R Wilson
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  British poultry science     Volume:  31     ISSN:  0007-1668     ISO Abbreviation:  Br. Poult. Sci.     Publication Date:  1990 Dec 
Date Detail:
Created Date:  1991-07-19     Completed Date:  1991-07-19     Revised Date:  2003-11-14    
Medline Journal Info:
Nlm Unique ID:  15740290R     Medline TA:  Br Poult Sci     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  715-24     Citation Subset:  IM    
Poultry Science Department, West of Scotland College, Auchincruive, Ayr.
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MeSH Terms
Body Weight
Chick Embryo / growth & development*
Chickens / growth & development*
Sex Characteristics

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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