Effect of high quality feed pellet on fermentation process, straw intake and growth rate in native cattle
1996
Wetchasit Toburan | Metha Wanapat | Chalong Wachirapakorn | Kritapon Sommart | Opart Pimpa (Khon Kean Univ., Khon Kaen (Thailand). Faculty of Agriculture. Dept. of Animal Science)
Experiment was carried out to study the effect of high quality feed pellet (HQFP) supplementation on digestibility, straw intake, rumen ecology and average daily gain (ADG) in 16 growing native cattle with average weight 149+31.7 kg, and randomly assigned to receive 2 treatments. Animals were fed on rice straw (ad-lib) and cassava chip at 1 percent of body weight (BW) as Treatment 1. Treatment 2, animals were fed as Treatment 1 but were supplemented with HQFP at 0.5 percent of BW, according to a completely randomized design (CRD). The results indicated that remen ecology was improved by HQFP suplemention. Ammonia-nitrogen (NH3-N) and total volatile fatty acid (TVFA) were significantly higher (P0.01) in Treatment 2 (4.3 mg percent and 97.8 mm) than in Treatment 1 (1.7 mg percent and 62.7 mm), but rumen pH was similar (pH 6.5 vs 6.3). Blood urea nitrogen (BUN) was also significantly higher (p0.01) in Treatment 2 (46.1 mg percent) than in Treatment 1(18.1 mg percent). Dry matter (DM) digestibility improved from 61.6 to 67.4, straw intake increased from 1.7 to 2.5 kg/hd/d and average daily gain increased from 0.2 to 0.8 g/hd/d (p0.01) when HQFP was supplemented. Therefore, supplementation of HQFP can improve the efficiency of low-quality roughage feeding such as rice straw during the dry season to ensure better rumen ecology and the subsequent performance.
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