Document Detail

Testicular changes of acute vitamin A deficiency of cockerels.
MedLine Citation:
PMID:  7406277     Owner:  NLM     Status:  MEDLINE    
Sixty, 1-day-old Arbor Acres broiler cockerels, randomly allotted to three groups, were fed a vitamin A-deficient diet, vitamin A complete diet (control diet), or control diet pair-fed in an amount equal to the quantity consumed by the vitamin A-deficient group. Secondary sex characteristics, as indicated by comb enlargement, developed more rapidly in cockerels consuming the deficient diet. A difference in direct testicular weight was not observed between vitamin A-deficient birds and pair-fed controls, but the testicular weight relative to body weight and the level of testicular maturity were greater in the former. Ultrastructurally, lipid droplets were found in Sertoli cells and germinal epithelium of the deficient birds, but not the pair-fed controls. Paradoxically, serum testosterone concentrations were significantly reduced in sequential serum samples from vitamin A-deficient chicks, but not controls. The evidence indicated that vitamin A deficiency has an androgenic effect in cockerels despite reduced testosterone concentrations.
I Damjanov; S W Neilsen; L van der Heide; H D Eaton
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  American journal of veterinary research     Volume:  41     ISSN:  0002-9645     ISO Abbreviation:  Am. J. Vet. Res.     Publication Date:  1980 Apr 
Date Detail:
Created Date:  1980-10-27     Completed Date:  1980-10-27     Revised Date:  2003-11-14    
Medline Journal Info:
Nlm Unique ID:  0375011     Medline TA:  Am J Vet Res     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  586-90     Citation Subset:  IM    
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MeSH Terms
Microscopy, Electron
Poultry Diseases / pathology*
Seminiferous Tubules / ultrastructure
Sertoli Cells / ultrastructure
Testis / ultrastructure*
Testosterone / blood
Vitamin A Deficiency / pathology,  veterinary*
Reg. No./Substance:

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

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