Lamming G E, Peters A R
Vet Rec. 1987 May 23;120(21):495-9. doi: 10.1136/vr.120.21.495.
The anabolic steroid and antimicrobial growth promoters may be regarded as the first generation of animal growth promoters or performance enhancers. There is major investment in the development of new techniques to improve the efficiency of farm animal production. These techniques are reviewed under the headings of growth hormone (somatotrophin) and related techniques, immunological techniques, the beta-adrenergic agonists and the direct genetic manipulation of farm animals.
合成代谢类固醇和抗菌生长促进剂可被视为第一代动物生长促进剂或性能增强剂。在开发提高农场动物生产效率的新技术方面有大量投资。这些技术在生长激素（生长激素）及相关技术、免疫技术、β-肾上腺素能激动剂和农场动物的直接基因操作等标题下进行了综述。
