A composition and method for improving feed utilization or tissue production in animals are disclosed. At least one substituted phenylphosphinic acid derivative or pharmaceutically acceptable salts thereof is administered as a feed supplement at a daily dosage between about 0.005 and 350 mg/animal. The specific daily dosage depends on the specie, weight of the animal and the desired production trait to be improved.
                            本发明公开了一种提高动物饲料利用率或组织产量的组合物和方法。至少一种取代的
苯基膦酸衍
生物或其药学上可接受的盐作为饲料补充剂给药,日剂量约为 0.005 至 350 毫克/动物。具体的日用量取决于动物的品种、体重和所需改善的生产性状。