Title page for ETD etd-08252008-162636


Type of Document Dissertation
Author Lewis, Ronald Martin
URN etd-08252008-162636
Title Reproductive performance of dorset ewes in the star accelerated lambing system
Degree PhD
Department Animal Science
Advisory Committee
Advisor Name Title
No Advisors Found
Keywords
  • Sheep
Date of Defense 1990-05-05
Availability restricted
Abstract

Reproductive performance of Dorset ewes in the Cornell University STAR accelerated lambing program was evaluated. This program consists of five 30-d concurrent breeding and lambing periods per year beginning on January 1 (Sl) , March 15 (S2), May 27 (S3) , August 8 (S4) and October 20 (S5). Optimally, a ewe could lamb every 7.2 mo beginning at 1 yr of age, Records on 1,084 ewes over 7 yr beginning Sl, 1982 Reproductive traits considered were ewe fertility, prolificacy, days to first lambing (DFL) and days between lambing (DBL).

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