Pot Marigold (Calendula officinalis) Powder in Rainbow Trout (Oncorhynchus mykiss) Feed: Effects on Growth, Immunity, and Yersinia ruckeri Resistance

Table 5

Skin mucus immunological parameters (, ) of O. mykiss fed with various levels of pot marigold (C. officinalis) powder for 60 days.

Parameter	Different experimental diets
	Control	MP 0.5%	MP 1%	MP 1.5%	MP 2%
LYZ (U/ml)	^b	^ab	^a	^a	^a
ALP (U/l)	^c	^bc	^a	^ab	^abc
Peroxidase (U/ml)	^b	^ab	^a	^ab	^ab
Protease (%)	^b	^ab	^a	^a	^a
Total Ig (mg/ml)

Different letters in a row denote significant difference ().