The Effects of Dietary Thyme Oil (Thymus vulgaris) Essential Oils for Common Carp (Cyprinus carpio): Growth Performance, Digestive Enzyme Activity, Antioxidant Defense, Tissue and Mucus Immune Parameters, and Resistance against Aeromonas hydrophila

Table 6

Liver-specific enzymes activity of common carp were fed four experimental diets over 60 days. Values are presented as the mean ± SE.

Parameters	Control	T1	T2	T3
ALT (U/ml)	17.06 ± 0.41^ab	17.66 ± 0.48^a	15.43 ± 0.52^b	15.89 ± 0.52^b
AST (U/ml)	26.78 ± 0.68^a	23.55 ± 0.70^b	22.27 ± 0.67^b	21.34 ± 0.57^b
ALP (U/ml)	14.21 ± 0.57	14.61 ± 0.36	13.62 ± 0.36	13.91 ± 0.25

Different letters (a–b) in the same row indicate significant differences ().