摘要
This experiment was conducted to investigate the effect of mangosteen peel and garlic powder supplementation on intake, digestibility, ruminal fermentation and methane production in beef cattle steers fed on rice straw based diets. Four, 2 year old rumen fistulated crossbred beef cattle were randomly assigned in a 4×4 Latin square design to receive four dietary treatments; mangosteen peel pellet (Mago-pel), mangosteen peel with garlic powder pellet (Maga-lic), mangosteen peel pellet with urea and garlic powder (Maga-ulic) supplemented at 200 g/h/d and non-supplemented group (control). All animals were fed with rice straw ad-libitum while concentrate was fed at 0.5% body weight (BW). It was found that supplementation of mangosteen peel and garlic with or without urea had no effect on daily feed intake (FI), digestibility of dry matter (DM), organic matter (OM) and crude protein (CP). Supplementation resulted in significantly lower overall NDF and ADF digestibility when compared with the control. Ruminal pH, concentration of ruminal NH3N and blood urea nitrogen (BUN) concentrations were not significantly different among treatments. The proportion of C2 and methane were decreased, while C3 proportion was increased by the supplementation. It was found that all supplemented treatments had no effects on Ruminococcus albus, Fibrobacter succinogenes and Ruminococcus flavefaciens populations (P>0.05), whereas total bacteria and total methanogens populations were affected by supplementation (P<0.05). Total bacteria were the highest in control group and lowest when supplemented with Mago-pel and Maga-lic. The total methanogen populations were the highest in control group and was similar with Mago-pel supplementation. Supplementation of Maga-lic and Maga-ulic resulted in lower population when compared to the control group and also with Mago-pel's supplemented groups.
摘要译文
本试验以调查对摄取山竹果皮和大蒜粉补充的效果，消化率瘤胃发酵和甲烷产量饲喂稻草基础日粮肉牛肉牛。四，2岁多的瘤胃瘘管的杂交肉牛，随机在4×4拉丁方设计，以接受为期饮食治疗分配;山竹的果皮颗粒（马戈贝尔）山竹的果皮大蒜粉颗粒（马夹-LIC），山竹的果皮与颗粒尿素和大蒜粉（马夹 - 乌立克）补充200克/ H / D和非补充组（对照组）。全部动物喂以稻草广告随意而浓缩液供给0.5％体重（BW）。结果发现，补充山竹果皮和大蒜有或没有尿素对每日饲料摄取量（FI）没有影响，干物质消化率（DM）有机物（OM）和粗蛋白（CP）。当与对照组相比补充导致显著降低整体的NDF和ADF消化率。瘤胃pH值，瘤胃的NH 3浓度而C3比例增加了补充。结果发现，所有的补充治疗对瘤胃黄鳝没有影响，Fibrobacter琥珀酸和瘤胃球菌人群（P当孙像素及马夹-LIC补充细菌总数均最高，对照组和最低点。总人口甲烷含量最高，对照组，是与马戈贝尔补充相似。当相对于对照组，也与孙贝尔内的补充组的马夹-LIC和马夹-乌立克补充导致较低的人口。
N. Manasri[a]; M. Wanapat[a]; C. Navanukraw[b]. Improving rumen fermentation and feed digestibility in cattle by mangosteen peel and garlic pellet supplementation[J]. Livestock Science, 2012,148(3): 291–295