摘要
选取40日龄新疆策勒黑羊和小尾寒羊断奶公羔各4只,在全舍饲条件下饲喂至240日龄,并在230日龄后进行消化代谢试验和屠宰试验,以比较两个品种间消化代谢与屠宰性能的差异。结果表明,小尾寒羊和策勒黑羊的干物质自由采食量分别为(1306.1±35.7),(1108.8±26.5)g/d,差异显著(P<0.05);纤维素消化率分别为(54.66%±5.46%),(61.79%±3.88%),差异显著(P<0.05)。240日龄小尾寒羊和策勒黑羊的体重分别为(44.09±4.48),(38.13±4.25)kg,差异极显著(P<0.01);胴体重分别为(21.85±3.74),(18.19±2.51)kg,差异极显著(P<0.01);胴体瘦肉重分别为(14.61±2.52),(11.94±1.71)kg,差异极显著(P<0.01)。策勒黑羊的产肉性能低于小尾寒羊,但策勒黑羊的纤维素消化能力较高。
In this experiment 8 of 40 day＇s old weaned male lambs of the Xinjiang Cele Black or Small Tail Han sheep （each n =4） were respectively selected for the comparison of the digestion metabolism and slaughter performance between these two species. The animals were raised until 240 day＇s old under house feeding ,and the experiment of the digestion and metabolism was carried on after 230 day＇s old. The results showed that the voluntary OM intake of Small Tail Han and Cele Black sheep were （1306.1±35.7） and （1108.8 ± 26.5） g/d（P 〈 0.05） respectively; fiber digestibility were （54.66 ± 5.46） and （61.79 ± 3.88）% （P 〈0.05）respectively. The body weights of Small Tail Han and Cele Black sheep at 240 day＇s old were （44.09±4.48） and （38.13±4.25） kg/sheep respectively, the Small Tail Han lamb is higher by 15.6% （P 〈0.01）;carcass weights were （21.85±3.74） and （18.19±2.51） kg/sheep respectively,the Small Tail Han lamb is higher by 20.1% （P %0.01）;the lean meat weights of carcass were （14.61±2.52） and （11.94±1.71） kg/sheep respectively,the Small Tail Han lamb is higher by 22.4% （P 〈0.01）. It is indicated that the meat production performance of Cele Black sheep is lower than that of Small Tail Han lamb, however, the Cele Black lamb has higher ability on the digestion of fiber.
出处
《新疆农业大学学报》
CAS
2013年第3期173-176,共4页
Journal of Xinjiang Agricultural University
基金
新疆维吾尔自治区科技支撑项目(201131110)
关键词
策勒黑羊
小尾寒羊
羔羊
消化
屠宰性能
Cele Black
Small Tail Han
lamb
digestion
slaughter performance
