CSIRO Publishing blank image blank image blank image blank imageBooksblank image blank image blank image blank imageJournalsblank image blank image blank image blank imageAbout Usblank image blank image blank image blank imageShopping Cartblank image blank image blank image You are here: Journals > Animal Production Science   
Animal Production Science
Journal Banner
  Food, Fibre and Pharmaceuticals from Animals
blank image Search
blank image blank image
blank image
  Advanced Search

Journal Home
About the Journal
Editorial Structure
Online Early
Current Issue
Just Accepted
All Issues
Special Issues
Research Fronts
Virtual Issues
Sample Issue
For Authors
General Information
Submit Article
Author Instructions
Open Access
Awards and Prizes
For Referees
Referee Guidelines
Review an Article
For Subscribers
Subscription Prices
Customer Service
Print Publication Dates
Library Recommendation

blue arrow e-Alerts
blank image
Subscribe to our Email Alert or RSS feeds for the latest journal papers.

red arrow Connect with us
blank image
facebook twitter logo LinkedIn


Article << Previous     |     Next >>   Contents Vol 17(85)

A comparison of the performance of single and twin born Corriedale ewes and lambs

K Baharin and RG Beilharz

Australian Journal of Experimental Agriculture and Animal Husbandry 17(85) 242 - 246
Published: 1977


Reproductive performance of Corriedale sheep from the experimental farm at Mount Derrimut, Victoria, was studied over five years (1 968 to 1972) in a flock selected for the production of medium wool and the ability to produce twins. Traits measured included fertility at mating, lambing rate, twinning rate, mortality at birth and interval between mating and lambing. Ewes born as twins were less fertile at first mating, improved rapidly in their reproductive performance at subsequent matings, but then declined in fertility quite early in their breeding life. Twin lambs had a mortality rate at birth nearly three times that of singles, were lighter at birth, grew slowly up to weaning and produced less wool at weaning. Female lambs conceived as co-twins with male lambs tended to be disadvantaged in heir pre-natal development which could be due to an enhancement effect exhibited by the male co-twin.

Full text doi:10.1071/EA9770242

© CSIRO 1977

blank image
Subscriber Login

PDF (308 KB) $25
 Export Citation

Legal & Privacy | Contact Us | Help


© CSIRO 1996-2016