|
发表于 2010-6-18 14:54:31
|
显示全部楼层
价格偏高,某些产品效果好像不错。Tetrabasic zinc chloride has been reported to be effective at improving pig nursery pig performance at 1500 ppm zinc similar to the response at 3000 ppm zinc from zinc oxide 。Mavromichalis, I., D.M. Webel, E.N. Parr, and D.H. Baker. 2001. Growth-promoting efficacy of pharmacological doses of tetraba-sic zinc chloride in diets for nursery pigs. Can. J. Anim. Sci. 81:387-391. |
|