ESTIMATED OF GENETIC AND NON GENETIC PARAMETERS FOR DAILY TEST MILK YIELD AND FAT PERCENTAGE IN HAMDANI EWES
Abstract
This experiment was included 655 test-days for milk yield and fat percentage in Hamdani ewes obtained from 56 ewes raised at Grdarasha station- College of Agriculture, Salahaddin University during period from 2001 t0 2002. The daily milk yield showed to be highest at 6, 8 and 10 weeks after lambing. The mean daily milk yield and fat % were 440.10 gm and 5.94% respectively. The estimated repeatability for milk yield and fat% were 0.40 and 0.19, respectively and BLUP values ranged from -265.11 to 708.46 gm and -1.23 to 1.44 % for milk yield and fat%, respectively. Sex of lamb, age of dam and series of the tests have a significant (p0.01) influence on the daily milk yield. Type of birth had no significant effect on milk yield. On the other hand, type of birth and series of the tests have a significant (p0.01) influence on fat %. The highest fat % was found to be during 12-15th tests.