用体外瘤胃发酵法评价不同络合强度有机锌源瘤胃稳定性

The Stability Study of Organic Zn with Different Complexed Strength in Vitro

采用6×4析因安排的完全随机试验设计的体外试验。于各个时间点测定了各组的氨氮含量和锌溶解度。结果表明:不同络合强度有机锌在模拟瘤胃环境下是稳定的,过瘤胃率分别在90%以上,其中又以强络合强度有机锌为最好(99.55%);中络合强度有机锌的锌溶解度一直处于较低的状态。

The completely randomized design involving a 6×4 factor arrangement of treatments was used in this in vitro experiment. The results showed that： The organic Zn sources with different complexed strength were stable in the rumen in vitro, the bypass ratio of organic Zn sources were 99.55%, 92.16% and 94.85%, respectively; The solubility of the organic Zn source with medium complexed was in the low statue at all times.