MILK YIELD AND MILK QUALITY OF DAIRY COW FED SILAGE COMPLETE RATION BASED ON SELECTED VEGETABLES WASTE AS FIBRE SOURCES

Abstract

The aims of the study were to evaluate the quality of selected vegetables waste offered to lactating dairy cows as silage. Completely Randomized Block Design was used in this experiment. Three kinds of rations namely R1: control ration (concentrate and forage was offered separately); R2: hay complete ration; and R3: silage complete ration containing 50% water were assigned randomly to fifteen of lactating dairy cows. Ration and drinking water were offered ad libitum. The results showed that the quality of silage was good in term of total number of lactic acid bacteria (1.76x 10 6 ), pH (3.80 – 4.51), and smell. Dry matter digestibility of silages complete ration ranged from 56 to 60%. Feeding the silage to lactating dairy cows improved butter fat content from 3.37 to 4.00%, but decreased milk yield from 7.82 to 6.74 kg/head. Pesticide residues was not detected in the milk. It was concluded that the selected vegetables waste could be used as a component of lactating dairy cows ration without affecting milk quality. Low milk yield may be corrected by the increasing of feed intake. Keywords: Vegetable, Silage, Ration, Milk, Dairy