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Non-Genetic Factors Affecting Milk Yield, Some Constitute and Lactation Period of Awassi Ewes | ||
| Journal of Tikrit University For Agriculture Sciences | ||
| Article 1, Volume 13, Issue 2, 2013, Pages 61-69 | ||
| Abstract | ||
| This study was conducted on flock of Awassi ewes belongs to Animal Breeding Station Mosul (AL-Rashedia) during of production season 2007-2008 . The study included 207, 205 and 202 Test–day for milk yield , fat and lactose percentage , respectively . The overall means of the traits were 308.50 gm ,4.22% and 3.84% , respectively . overall mean of lactation period was 154.09 day . Age of ewe significantly affected (p<0.01) fat percentage . Month of birth had highly a significant (p<0.01) influence on all studied traits . The effect of test –day were significant (p<0.01) on milk yield , fat and lactose percentage . Repeatability estimates for milk yield was 0.18 , while were low 0.04 ,0.07 for fat and lactose percentage , respectively . There were a negative and significant correlation (-0.38) between milk yield and fat% , and (-0.56) between fat and lactose percentage . While positive and significant correlation (p<0.01) had been observed between milk yield and lactose percentage . The BLUP values for daily milk yield were between 369.49 and -140.28 gm to deviate from overall mean of daily milk yield | ||
| Keywords | ||
| non; Genetic; Milk; Awassi | ||
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