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首页> 外文期刊>Tropical Animal Health and Production >Effect of replacing barley with rice bran in finishing diet on productive performance and carcass characteristics of Afshari lambs
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Effect of replacing barley with rice bran in finishing diet on productive performance and carcass characteristics of Afshari lambs

机译：整理饮食中用米糠替代大麦对阿富汗羔羊羔的生产性能和car体特性的影响

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Thirty-five male Afshari lambs (3.5 months old), with an average weight of 35 kg were randomly assigned to one of five experimental treatments relating to optimal replacement level of rice bran in lamb finishing diets. The lambs were fed a milled concentrate (3 mm screen) diet supplemented with 15% (DM basis) chopped (5 cm length) lucerne hay and chopped (5 cm length) maize silage or wet (80% moisture) sugar beet pulp. Barley grain in the lambs’ diets was replaced by rice bran at either 0, 15, 30, 45 or 60% of the concentrate mixture on a dry matter basis. Results show that lambs fed 45 and 60% rice bran treatments weighed significantly less than those fed with 15 and 30% and control group (P < 0.05). Average daily gain in lambs fed with concentrate mixtures containing 45 and 60% rice bran were 33 and 47% lower than control, respectively (P < 0.05). Lambs that received diets containing 45 and 60% rice bran, had lower feed intake (P < 0.05) than other groups. Using rice bran in the finishing diet had no significant effect on dressing percentage, tail percentage, abdominal fat and visceral organ weights. These results suggest that barley can be replaced with rice bran up to 30% in the finishing diets of lambs without any adverse effect on lamb performance.
机译：将平均体重为35公斤的35头Afshari雄性羔羊（平均体重35公斤）随机分配到五种与羔羊育肥日粮中米糠最佳替代水平相关的实验处理之一。给羔羊饲喂补充15％（以DM为基础）切碎（5厘米长）的苜蓿干草和切碎（5厘米长）的玉米青贮饲料或湿的（80％水分）甜菜粕的浓缩精饲料（3毫米筛）。以干物质计，羔羊日粮中的大麦籽粒被米糠代替，其精矿混合物的含量为0、15、30、45或60％。结果表明，饲喂45％和60％的米糠的羔羊的体重显着小于饲喂15％和30％的米糠和对照组的羔羊（P <0.05）。用含45％和60％米糠的浓缩混合物喂养的羔羊的平均日增重分别比对照低33％和47％（P <0.05）。日粮中含有45％和60％的米糠的羔羊的饲料摄入量较低（P <0.05）。在后期饮食中使用米糠对穿衣率，尾巴率，腹部脂肪和内脏器官重量没有显着影响。这些结果表明，在羔羊的最终日粮中，大麦可以被米糠替代高达30％，而对羔羊的生长性能没有任何不利影响。

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