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当前位置: 首页 > 文章 > 湖羊及其杂种羊生长性能和养分消化比较研究 中国草食动物科学 2018 (4)
Position: Home > Articles > 湖羊及其杂种羊生长性能和养分消化比较研究 China Herbivore Science 2018 (4)

湖羊及其杂种羊生长性能和养分消化比较研究

作  者：
王玉珍;邓颖;李飞;李发弟;唐德富
关键词：
湖羊;杂种羊;生长性能;消化率
摘  要：
试验旨在对湖羊及其杂种羊生长性能和养分消化率进行比较研究.选择体况良好、体重接近(24.1 kg±1.1 kg)的湖羊、澳湖杂交一代羔羊(澳洲白*湖羊♀)、陶湖杂交一代羔羊(无角陶赛特羊*湖羊♀)各24只,每组设3个重复,每个重复8只.饲喂相同全日粮颗粒饲料,一段式育肥.试验期84 d,于63 d末进行消化试验.结果表明:澳湖杂交一代羔羊和陶湖杂交一代羔羊21、42、63和84 d体重均显著高于湖羊(P<0.05),且澳湖杂交一代羔羊各期和全期日增重也均显著高于湖羊(P<0.05),陶湖杂交一代羔羊0~21、22~42、64~84和0~84 d平均日增重均显著高于湖羊(P<0.05),澳湖杂交一代羔羊22~42 d和43~63 d平均日增重显著高于陶湖杂交一代羔羊(P<0.05);陶湖杂交一代羔羊ADF消化率有高于湖羊的趋势(P>0.05).由此可见,在相同饲粮与饲养管理条件下,无角陶赛特羊*湖羊杂交一代羔羊和澳洲白羊*湖羊杂交一代羔羊生产性能均优于湖羊,更适于肥羔生产.
作  者：
Wang Yuzhen;Deng Ying;Li Fei;Li Fadi;Tang Defu;Prairie Workstation of Minqin County;State Key Laboratory of Grassland Agro-ecosystems,Key Laboratory of Grassland Livestock Industry Innovation,Ministry of Agriculture and Rural Affairs,College of Pastoral Agriculture Science and Technology,Lanzhou University;Sheep Breeding Biotechnology Engineering Laboratory of Gansu Province;College of Animal Science And Technology,Gansu Agricultural University;
单  位：
Wang Yuzhen%Deng Ying%Li Fei%Li Fadi%Tang Defu%Prairie Workstation of Minqin County%State Key Laboratory of Grassland Agro-ecosystems,Key Laboratory of Grassland Livestock Industry Innovation,Ministry of Agriculture and Rural Affairs,College of Pastoral Agriculture Science and Technology,Lanzhou University%Sheep Breeding Biotechnology Engineering Laboratory of Gansu Province%College of Animal Science And Technology,Gansu Agricultural University
关键词：
Hu sheep;;hybrid variety;;growth performance;;digestibility
摘  要：
This study was to compare the growth performance and nutrient digestibility of Hu sheep and its hybrid varieties.There were 72 lambs(24 Hu sheep,24 Australian White Ibis×Hu sheep,24 Poll Dorset sheep×Hu sheep),with healthy and close weight(24.1 kg+1.1 kg),were selected for the trial and 3 replicates were included for each group with 8 lambs. The same TMR pelleted diet were fed for 84 days. The digestive test was carried out at the end of 63 d. The results showed that the body weight of Hu sheep was significantly lower than those of others at day 21,day 42,day 63 and day 84(P<0.05),and so was the average daily gain,while the average daily gain of Australian White Ibis×Hu sheep at both day 22-42 and day 43-63 was significantly higher than that of Hu sheep(P<0.05). The digestibility of ADF for Poll Dorset sheep×Hu sheep group was higher than that of Hu sheep(P >0.05). Therefore,under the same diet and feeding management conditions,the growth perfor-mance and nutrient digestibility of the Australian White Ibis×Hu sheep and Poll Dorset sheep×Hu sheep were better than those of the Hu sheep,which was suitable for the production of fat lamb.

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