Influence of Sex and Calf Weight on Milk Yield and Some Chemical Composition in the Egyptian Buffalo's
[1]
Hamad M. N. F., Dairy Science Department, Faculty of Agriculture, Damietta University, Damietta, Egypt.
[2]
M. M. El-Moghazy, Animal Production Department, Faculty of Agriculture, Damietta University, Damietta, Egypt.
Data used in this study consisted of 30 monthly milk records during the lactation period from November 2011 to February 2012 (cold season). Data concerning daily milk yield, total milk yield monthly, percentage of milk fat, protein, lactose, total solids, and solids not fat for (14 males and 16 females) reared in the Tabanoha village, Dakahlia governorate, Egypt, were collected. Sex of birth had a significant (p>0.05) effect on milk yield at 60, 90, 120 and 150 days while non-significance showed on 30 days. Calf weight had not a significant (p>0.05) effect on all milk yield traits, but the interaction between sex and calf weight had a significant effect (p<0.05) on yield of 60, 90, 120 and 150 day. There is no significant effect of sex and weight of the calf and the overlap between them (p>0.05) on yields of fat, protein, lactose, total solids and solid non-fat at all months with the exception of the effect of the interaction between sex and calf weight was significant (p<0.05) on the yield of fat at 2nd, lactose at 2nd, 3rd, total solids at 2nd and solid non-fat at 1st, 2nd.
Yield, Lactose, Protein, Sex of Birth, Calf Weight, Egyptian Buffalo's
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