Key Laboratory of Forage Cultivation, Processing and High Efficient Utilization, Ministry of Agriculture, Hohhot, China.
Key Laboratory of Grassland Resources, Ministry of Education, Hohhot, China.
Anim Sci J. 2021 Jan-Dec;92(1):e13553. doi: 10.1111/asj.13553.
This study aimed to evaluate growth performance and meat quality of Ujimqin lambs fed native grass hay without or with concentrate (HC) or pellets. Ninety non-castrated 6-month-old male lambs of good health and similar body weight (26.83 ± 0.26 kg) were randomly divided into three groups (five lambs per cage). The average daily gain and intake of the pellets and HC groups were significantly greater (p < .05) than those in the hay group. The carcass weight, net meat mass, loin eye area, and backfat thickness were significantly greater (p < .05) in the HC groups. The intramuscular fat was significantly greater (p < .05) in the pellets and HC groups, while the shear force was significantly decreased (p < .05) in pellets and HC groups. The C16:0, C18:0, C18:1n9c, and C18:2n6 contents were significantly greater (p < .05) in the HC and pellet groups, while the C18:3n3 content was significantly greater (p < .05) in the hay group. Collectively, the present study suggested that feeding native grass hay with concentrate or pellets improved the growth in lambs.
本研究旨在评估饲喂本地产干草且不添加（HC）或添加浓缩料（pellets）的育肥乌珠穆沁羊的生长性能和肉质。90 只健康且体重相近（26.83±0.26kg）的 6 月龄非去势雄性羔羊被随机分为 3 组（每组 5 只羊）。与干草组相比，pellets 和 HC 组羔羊的平均日增重和浓缩料采食量显著增加（p<.05）。HC 组羔羊胴体重、净肉重、腰眼面积和背膘厚度显著增加（p<.05）。pellets 和 HC 组的肌内脂肪显著增加（p<.05），而剪切力显著降低（p<.05）。HC 和 pellets 组的 C16:0、C18:0、C18:1n9c 和 C18:2n6 含量显著增加（p<.05），而干草组的 C18:3n3 含量显著增加（p<.05）。综上，本研究表明，饲喂本地产干草并添加浓缩料或颗粒料可提高羔羊的生长性能。
