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Ruminant Nutrition and Forage Utilization
Asian-Australasian Journal of Animal Sciences 2001;14(2): 206-210.
https://doi.org/10.5713/ajas.2001.206    Published online February 1, 2001.
Cassava Chips and Ground Corn as Sources of Total Non-Fiber Carbohydrates in Total Mixed Rations for Dairy Cows
J. Kanjanapruthipong, N. Buatoug, U. Kanto, S. Juttupornpong, W. Chaw-uthai
Abstract
Six Holstein횞indigenous multiparous dairy cows, 60 8 days in milk, were used in a double 3횞3 Latin square design to investigate the efficiency of milk production. The dairy cows were randomly allocated to total mixed rations (TMR) containing ground corn, ground corn plus cassava chips 50:50 and cassava chips as main sources of total non-fiber carbohydrates. Ether extract and calculated energy intakes for dairy cows fed TMR containing cassava chips were lower (p<0.05) than those fed TMR containing ground corn and ground corn plus cassava chips 50:50. There were no differences (p>0.05) in daily DM intake (3.51, 3.41 and 3.29% BW), in 4% fat corrected milk (19.66, 20.59 and 20.23%), in milk protein (3.37, 3.27 and 3.33%), and in solids-not-fat (9.03, 8.90 and 8.99%) but there were differences in cost of diets per kg of 4% fat corrected milk (40.75, 34.33 and 28.17%; p<0.01) for dairy cows fed TMR containing ground corn, ground corn plus cassava chips 50:50, and cassava chips. It can be concluded that the efficiency of milk production (4% fat corrected milk per dry matter intake) for dairy cows fed TMR containing cassava was greater than for those fed TMR containing corn.
Keywords: Cassava; Corn; Dairy Cows; Milk; Total Non-Fiber Carbohydrates
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