Document Detail

Characteristics and indices of reproduction in Dorper sheep.
MedLine Citation:
PMID:  4078834     Owner:  NLM     Status:  MEDLINE    
In seventeen adult Dorper ewes imported from South Africa into Israel and nine of their primiparous, first-generation daughters born in Israel, characteristics and indices of reproduction were determined during the period of April 1982 to April 1984. This study showed that, during the period from April 1982 to January 1984, three lambings occurred in the adult ewes; the lengths of the oestrous cycles for adult and primiparous ewes were 17.6 +/- 1.1 and 16.6 +/- 1.2 days, respectively; the number of services per ewe in oestrus were 3 +/- 1 services; the average length of pregnancy was 146-147 days; the lambing intervals were 6.2 +/- 0.46 and 7.7 +/- 0.62 months from the first to second lambing and the second to third lambing, respectively; of 17 ewes, 3 had twins in all 3 lambings (17.6%) and 4 had twins in only the first 2 lambings (23.5%). The sex ratio recorded in 70 lambs of adult ewes (in three lambings) was 41 males to 29 females (41:29). A high percentage of fecundity (137.2%) and prolificity (149%), an unrestricted breeding seasons, a short lambing interval and a short postweaning anoestrus period, recommend this breed of sheep as commercially advantageous for arid zones.
E Elias; D Cohen; P Dayenoff
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of the South African Veterinary Association     Volume:  56     ISSN:  1019-9128     ISO Abbreviation:  J S Afr Vet Assoc     Publication Date:  1985 Sep 
Date Detail:
Created Date:  1986-01-29     Completed Date:  1986-01-29     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  7503122     Medline TA:  J S Afr Vet Assoc     Country:  SOUTH AFRICA    
Other Details:
Languages:  eng     Pagination:  127-30     Citation Subset:  IM    
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MeSH Terms
Nutritional Physiological Phenomena
Sexual Behavior, Animal
Sheep / physiology*

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