The content of urobilinogen was increased dramatically on day 2 post-feed onion ( p < 0.05 ); and the level of Direct Bili was also increased significantly on day 1 post-feed onion ( p < 0.01 );

尿液 中 尿 胆 原的含量在饲喂后的第2天显著增加（p<0.05）；

Urobilinogen reflect a more sensitive liver function .

尿 胆 原更加灵敏的反映肝功能。

Urobilinogen proportion and pH value is in the normal range ; Two groups of testing hybrid beef cattle urine in Ca P K Mg and Na plasma content are within the normal range .

尿 胆 原、比重和pH值都在正常范围内；两组试验杂交肉牛尿液中Ca、P、K、Mg和Na等离子含量均在正常范围内。