The predicted of growth traits from milk production and lactation period in Awassi sheep

A. Al-Samray, O.

	The predicted of growth traits from milk production and lactation period in Awassi sheep
Al-Anbar Journal of Veterinary Sciences
Article 1, Volume 5, Issue 2, 2012, Pages 1-6 PDF (159.21 K)
Author
O. A. Al-Samray
Abstract
The study included 650 Awassi sheep records for milk production, lactation period and growth traits (Birth and weaning weight and gain from birth to weaning), over the period 2008 to 2010, Sheep and goat station (20 km east Baghdad). The study was conducted to estimated the regression coefficient of growth traits on milk production and lactation period after adjusted of the fixed effects (year of parturition and parity). The overall means of milk production, lactation period, birth weight, gain from birth to weaning and weaning weight were 3782.81 kg, 307.18 day, 34.283 kg, 40.716 kg and 75.81 kg respectively. The year and parity effect on milk production and lactation period was significant (p<0.01). The year effect on birth weight was significant (p<0.05), non-significant effect and of parity in birth weight and gain birth to weaning. Regression coefficients of weaning weight and gain between birth and weaning on milk production were 0.177 and 0.084 kg/kg, and on lactation period were 0.208 and 0.096 kg/day (p<0.01). Conclude for this study the possibility of early selection of the lambs born from their mother during the production.
Keywords
predicted of growth traits; milk production and lactation period; Awassi sheep

Statistics Article View: 137 PDF Download: 26