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山毛豆对新西兰肉兔的饲用价值

The feeding value of Tephrosia candida DC.on New Zealand rabbit

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为了改善广西目前象草补精料饲养肉兔这种较低效的饲料结构,试验引进优质豆科牧草新品种山毛豆,并测定其饲用价值.试验采用0、25%、50%、75%和100%的山毛豆分别与100%、75%、50%、25%和0的象草搭配作为肉兔青饲料,饲喂60只肉兔90 d,测定山毛豆营养成分,肉兔采食量、日增重、屠宰性能及经济效益.结果表明:山毛豆初花期粗蛋白达18.29%,优于其他南方常用牧草,全喂山毛豆比对照组平均节省青饲料28.75%,日增重高达(17.47±1.40)g/只;从试验组来看,B组效果最好,因为观察得知其适口性最好,日增重仅次于添加100%山毛豆,为(15.61±1.41)g/只;屠宰率最高为56.38%,经济效益最高,比对照组提高86.87%.综上所述,山毛豆营养价值高,饲喂肉兔效果好,适合在生产上推广应用.
In order to improve the low-effect feed composition-Pennisetum purpureum (P. p.) supplymented with concentrated feed used in Guangxi at present,a kind of good-quality leguminocea forage-Tephrosia candida DC. were introduced and its feedingvalue was determined. 0% ,25%,50% ,75% and 100% of Tephrosia candida DC. served with 100%, 75%, 50% ,25% and 0% of Pennisetum purpureum (P. p.) were fed to 60 rabbits as green fodder for 90 days to study the intake, daily weight gain, slaughter performance and economic benefit of rabbits. The results showed,the crude protein percentage of Tephrosia candida DC. in initial bloom stage is 18.29% which are better than other forages grown in southern China;rabbits feeding with 100% Tephrosia candida DC. could saving 28.75% of green fodder and its daily weight gain reached (17.47±1.40) g/per rabbit;as to test groups,the best one is B,because its platability is the best;its daily weight gain is just lower than D group, (15.61±l.41) g/per rabbit;its slaughtering rate is the highest,56.38% ;its economic benefit is the highest, 1.87 times than that of the control group. In conclusion,Tephrosia candida DC. have not only high nutritive value but also good feeding effect, so it is approprate to be applied in production.

蔡小艳、赖志强、易显凤、韦锦益、滕少花

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广西壮族自治区畜牧研究所,530001

山毛豆 采食量 日增重 屠宰性能 经济效益

2011

饲料工业
辽宁省农牧业机械研究所

饲料工业

CSTPCD北大核心
影响因子:0.554
ISSN:1001-991X
年,卷(期):2011.32(1)
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