สมรรถนะการผลิตของโคพื้นเมืองไทยที่ได้รับหญ้ารูซี่แห้งหรือฟางข้าวเป็นแหล่งของอาหารหยาบหลัก

Abstract

Objective of this study was to investigate performance of Thai Native beef cattle fed Ruzi grass or rice straw base diet. Twelve steers with age of 3 years and initial weight 318 ±29.6 kg were fed mixed 70% of concentrate with 30% of roughage (Ruzi straw or rice straw) as the dietary treatment in a randomize complete block design (RCBD) as follow; T1) Ruzi grass fed base diet, ad libitum, T2) rice straw fed base diet, ad libitum and T3) rice straw fed base diet, stair step feeding. Feeding experiment was conducted for 126 days. At the end of experiment, the cattle was slaughtered to determine carcass quality and meat quality. The result showed that average daily gain, feed intake, carcass quality, meat quality and CLA in meat were not different among treatments (P>0.05).