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
|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|