作者: L.O. Fiems , B.G. Cottyn , Ch.V. Boucqué
DOI: 10.1016/B978-0-444-88930-0.50009-2
关键词: Growth rate 、 Hormone 、 Biology 、 Endocrinology 、 Steroid 、 Animal science 、 Promoter 、 Feed conversion ratio 、 Antibiotics 、 Internal medicine 、 Trenbolone 、 Anabolic steroid
摘要: Abstract The development of a number growth promoters, such as antibiotics, hormones and β-agonists, the use in poultry, pigs, sheep cattle has improved meat production through positive effect on rate and/or feed efficiency. combined different promoters can result additivity effects. anabolic steroid trenbolone also β-agonists increase dressing percentage, while it was mostly unaffected by other or often decreased hormone. hormone repartition energy towards less fat more lean tissue carcass, irrespective animal species.