弗莱威赫杂交牛育肥生产和屠宰性能测定及分析

Determination and analysis of fattening production and slaughtering performance of Freweich hybrid cattle

中文关键词: 弗莱维赫牛  乳肉兼用牛  育肥生产性能  屠宰性能

英文关键词: Flevich cattle  Both dairy and meat cattle  Fattening performance  Slaughter performance.

中文摘要:

      本试验旨在研究测定弗莱威赫×黑白花F1代新型乳肉兼用品种公牛的育肥生产性能和屠宰性能,为选育和生产推广提供数据支撑和技术参考。总计20头F1代公牛(BW =264.5±35.11 kg,平均8月龄)用于本试验。试验牛只均为散栏饲养,后期自由采食,全期自由饮水。经过397天饲喂试验,结果表明F1代新型乳肉兼用品种育肥公牛从264.5 kg生长至698.2 kg,全期平均日增重1.09 kg/d,干物质采食量最高可达16.46 kg/d。在本试验的育肥环境和日粮条件下,育肥后期料肉比介于10.1-16.4之间。经屠宰发现,F1代杂交公牛屠宰胴体重394.3 kg,屠宰率平均可达60.1%。综上,在本试验条件下,F1代杂交公牛表现出较高的采食潜力以及良好的高温环境下育肥性能,同时经过屠宰可获得较高的屠宰率,在育肥生产和屠宰性能方面均表现出良好的选育和推广潜力。

英文摘要:

      This experiment was conducted to determine the fattening performance and slaughtering performance of a new type of dairy and meat hybrid breed of Freweich×friesian F1, in order to provide data support and technical reference for breeding, production and promotion. A total of 20 F1 bulls (BW =264.5±35.11 kg, mean age 8 months) were used in this trial. All the experimental cattle were fed in loose stalls, fed freely at the later stage and drank freely throughout the whole period. After 397 days of feeding experiment, the results showed that the fated bulls of F1 generation grew from 264.5 kg to 698.2kg, with an average daily gain of 1.09 kg/d and the highest dry matter intake of 16.46 kg/d. In the fattening environment and diet conditions of this experiment, the ratio of feed to meat in the late fattening period was between 10.1 and 16.4. After slaughter, it was found that the carcass weight of F1 hybrid bulls was 394.3kg, and the average slaughter rate was 60.1%. In conclusion, under the conditions of this experiment, F1 hybrid bulls showed higher feeding potential and good fattening performance under high temperature environment, and higher slaughter rate could be obtained after slaughter, showing good breeding and popularization potential in terms of fattening production and slaughter performance.