International Journal of Science and Technology

International Journal of Science and Technology>> Volume 7, Number 9, September 2017

International Journal of Science and Technology

Effect of Feeding systems on Milk Yield and Composition of Local and Cross Bred Dairy Cows

Full Text Pdf Pdf
Author Intisar, Y. Turki, Mawhip, A. M, Muna, E. K., Miriam S. A., Omer M. E, M. E, Hammed
On Pages 5-9
Volume No. 2
Issue No. 1
Issue Date January 01, 2012
Publishing Date January 01, 2012
Keywords forage crops, concentrate supplement, local& crossbred, milk yield and composition


The study was carried out at Dongola, Northern State - Sudan; from 10/7 to 1/ 9 2010, to investigate the effect of some forage crops and concentrate supplements on milk yield and composition of local and cross-bred cows. Thirty milking cows, of an average body weight 400-450 kg and about 4-10 years old were used. Cows were divided into six groups ( five heads per each): Group (1) and (2) [local and cross bred cows, respectively] were fed on Solely Clover; group (3) and(4) [local and crossbred cows, respectively] were offered clover and Sorghum stover; groups (5) and (6) [local and crossbred cows, respectively] were fed Clover and concentrates. The results showed that the cross bred cows in group (6) recorded the highest (p<0.05) milk yield (17.5k/day) compared to other groups, followed by G (5) with an average milk yield of 12.9 k/day, while groups (2), (4), (1)and (3) gave an average milk yield of 10.4, 9.2, 8.8 and 7.7k/day, respectively. Concerning the milk components, experimental groups showed a significant variation (p<0.05) attributed to type of feed and breed. Group (6) showed the highest fat content (5%) where as group (3), (4) and (5) obtained 4.1, 4.4 and 4.7%, respectively. Milk from group (1) and (2) attended to have the lowest (p<0.05) fat content (3.7%). The statistical analysis showed a significant increase (p<0.05) in protein % favor for group (3) (5%) compared to other groups (1), (2), (4), (5) and(6) which recorded 4.5, 4.4, 4.6, 4.8and4.1%, respectively. Total solids of group(1) and (2)were12.1, 12.6% which was slightly lower (p<0.05) than the values obtained by cows in groups (3), (4), (5) and(6) of 13.7, 13.9, 13.4 and 13.9%, respectively.Also significant variation was recorded for ash%. The highest ash content was recorded by group (1).Water content was found to be higher (p<0.05) for group (1), 87.4% and 87.8 % for group (2) than other experimental groups (3), (4), (5)and (6), which obtained %86.,686.3, 86.1, 86.0%, respectively.

    Journal of Science and Technology | Journal of Information and Communication Technology     
2010 IRPN Publishers