The comparison of effects of supplementation of zeolite and yucca schidigera powder to diet on liver enzymes (AST, ALT, GGT) in sheep

The comparison of effects of supplementation of zeolite and Yucca schidigera powder to diet on liver enzymes (AST, ALT, GGT) in sheep. The interest in using natural products as feed additives instead of antibiotics has increased in order to manipulate rumen fermentation. The purpose of current work was to determine effects of co-addition zeolites of and Yucca schidigera (YS) plant containing high level of saponin to sheep feed on plasma AST, ALT and GGT levels. A total of 24 sheep were usedas 6 of each group. Sheep was fed foronemonth as control, supplemented with zeolite (3%), Yucca schidigera (YS, 1500 ppm) and zeolite (3%) + YS (1500 ppm) tobasal diet. When trial finished, plasma AST, ALT and GGT levels were determined in blood samples taken from all groups. In the study, detected supplement of zeolite and YS did not have an impact on ALT and AST, whereas zeolite additions decreased GGT levels. As a result; zeolite and YS supplementation applied in this study did not have a negative impact liver welfare sheep. Key words: Sheep, zeolite, saponins, liver enzymes, diet