Document Detail

Ovulation rate, litter size and prenatal losses in hair sheep of the French West Indies.
MedLine Citation:
PMID:  15535465     Owner:  NLM     Status:  MEDLINE    
Ovulation rate (OR) and litter size (LS) were recorded in local hair sheep of Martinique and in local x Lacaune-viande crossbreeds, in order to assess prenatal losses. Local hair sheep LS and OR were 1.91 and 2.41, respectively. Prenatal losses increased with OR, from 0.22 (OR = 2) up to 1.50 (OR > 3). The ewes (69.7%) with LS = 1 had actually lost at least one ovum, against 25.9% of the ewes with LS > 1. Ewes grazing Cynodon nlemfuensis (Stargrass) had lower LS than those grazing Digitaria decumbens (Pangola), in relation with a lower nutritional level and, maybe, more parasitism effects. No seasonal or age at lambing effect was shown. The OR and LS were dramatically decreased on local x Lacaune-viande crossbred ewes (minus 1.32 and 0.67 unit, respectively, P < 0.05). This suggests a possible negative effect of the tropical environment on the crossbreeds' reproductive function.
Maurice Mahieu; Yves Cognié; Philippe Chemineau
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Reproduction, nutrition, development     Volume:  44     ISSN:  0926-5287     ISO Abbreviation:  Reprod. Nutr. Dev.     Publication Date:    2004 Jul-Aug
Date Detail:
Created Date:  2004-11-10     Completed Date:  2005-02-03     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  8913069     Medline TA:  Reprod Nutr Dev     Country:  France    
Other Details:
Languages:  eng     Pagination:  333-9     Citation Subset:  IM    
Unité de Recherches Zootechniques, INRA-Antilles-Guyane, Prise d'eau, 97170 Petit-Bourg, Guadeloupe, France.
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MeSH Terms
Abortion, Veterinary / epidemiology*,  genetics
Crosses, Genetic*
Hybrid Vigor
Litter Size / genetics,  physiology*
Ovulation / genetics,  physiology*
Sheep / genetics,  physiology*
Tropical Climate / adverse effects

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

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