这些技术的应用使养羊业育种和生产水平大为提高，产生了显著的经济效益。
The application of biological technique not only improves the level of sheep breeding and production, but also brings about obvious economical results.
以专业化的大型农场为主体，从事谷物种植业、养羊业、养羊牛业或兼营以上两种或三种。
The specialized farms with large scale are the main production bodies, engaging in grain crop industry, sheep industry, cattle industry or holding two or three industries concurrently.
因此，世界上养羊业发达国家都把肥羔生产作为羊肉生产的重点。
Therefore, the developed country in the cultured sheep trade in the world regards fattening sheep production as emphasis of sheep meat production.
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