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Project No: AP2/7

Title: Investigation into the relationship between milk production of grazing ewes and maternal breeding values for early growth traits in three South African sheep flocks
Project Leader: Dr M.A. Snyman Starting date: Oct 2004
Partners: NCDA ECDALA WCDA Closing date: Dec 2015
 
Objectives: The purpose of this study is to evaluate the use of maternal breeding values for early growth traits as alternative or additional selection criterion for improved growth efficiency in slaughter lamb production enterprises.

The objectives of this study are as follows:
To determine milk production potential of wool sheep ewes under different grazing conditions
To estimate genetic parameters for milk production of these ewes
To determine the relationship between milk production of ewes and direct and maternal breeding values, as well as actual weaning weight of their lambs in three sheep flocks under different grazing conditions
To determine the relationship between maternal breeding values for early growth traits of sires and milk production of their daughters, as well as growth performance of the daughters' lambs.
Location: Carnarvon Experimental Station, Cradock Experimental Station, Elsenburg LOI
Strategic Objectives Addressed: * To enhance the economic performance of the sector
* To ensure consumer confidence in agricultural products and services

 

Progress reports:

 

 

Publications:

 

Author Year Title Publication
Snyman MA, Cloete SWP 2008 Lactation curves of wool sheep ewes under different grazing conditions Grootfontein Agric 8 (1) : 22-31
Snyman MA, Herselman MJ, Cloete SWP, Griessel PJ, Van Heerden M, Buys T, Greyling AC 2006 Milk production of grazing wool sheep ewes Proceedings 41th SASAS congress, Bloemfontein, 3 - 6 April 2006