Effect of lactation stage and calve sex in some of milk components in Iraqi Riverine Buffalo

A. Mahdi, Lina

	Effect of lactation stage and calve sex in some of milk components in Iraqi Riverine Buffalo
Kufa Journal For Veterinary Medical Sciences
Article 1, Volume 5, Issue 1, 2014, Pages 110-114
Author
Lina A. Mahdi
Abstract
The present study was carried out at local buffalo flock in AL-Najaf province , by using data collected for 40 reverine buffalo in different lactation stage thought the year 2013 to determine the effect of lactation stage and sex of birth in milk protein , lipids , lactose ,ash solid not fat ,calcium ,density, freezing point and water. Results was showed a significant effect (p≤ 0.05 ) of lactation stage in milk lipids, protein, ash and freezing point , the highest values were in late period of lactation (9.5g/l ,4.0 g/l ,0.84 g/l and -29.85 c°) respectively. Lactose and density were increased significantly (p≤ 0.05 ) in the beginning of lactation period its about 4.53 g/l and 54.33ml/gm respectively compared with end of lactation period its about 3.38 g/l and 43.67 ml/ gm respectively. S.N.F ,calcium and water were not affected significantly by lactation stage. Significant effect (p≤ 0.05 ) of calve sex in milk lipids, protein and freezing point , the highest values were in milk of dams that calved female (7.83g/l ,3.92 g/l and -27.36c°) respectively. Lactose and density were increased significantly (p≤ 0.05 ) in the milk of dams that calved male its about 4.62 g/l and 53.17ml/gm respectively. S.N.F ,calcium, ash and water were not affected significantly by calve sex.
Keywords
Buffalo; lactation stage; calve sex

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