A preliminary assessment of predictive measures for the expression of weaning efficiency in sheep (Short communication)

Author: S.J. Schoeman
Year: 1996
Issue: 2
Volume: 26
Page: 47 - 49

Weights and individual feed intake data of 30 Dorper crossbred ewes and their single-born lambs were collected from conception to weaning. The data were used to calculate actual weaning efficiency of the individual ewe-lamb units [AEFF = lamb weaning weight/DDMI (digestible dry matter intake) of both ewe and lamb x 100]. The accuracy of ewe weight (EWb) as a predictor of lamb weight (LW) and of predictive weaning efficiency (PEFF = LW/EWb) as a predictor of AEFF were investigated. Best predictions were obtained when EW was raised to the power of 0.72 and 0.67, respectively.

Keywords: Efficiency, ewe size, prediction, sheep, W0.75
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