. 2023 Jul 4;2023:8882736. doi: 10.1155/2023/8882736

Table 2.

Serum immunological changes of Nile tilapia fed diets with different levels of L. caspica.

Parameters	Day 25				Day 50				Interaction
Parameters	Control	0.5%	1%	2%	Control	0.5%	1%	2%	Interaction
Lysozyme (U/min)	18.95 ± 1.23^aA	21.5 ± 1.12^aA	21.2 ± 1.06^aA	21.92 ± 0.22^aA	20.46 ± 0.45^aA	25.3 ± 2.68^bB	25.3 ± 0.93^bB	27.15 ± 0.20^bB	NS (P = 0.1074)
IgM (mg dL⁻¹)	40.23 ± 0.25^aA	42.3 ± 0.98^aA	45.5 ± 1.32^bA	47.4 ± 0.51^bA	41.2 ± 1.10^aA	53 ± 0.50^bB	54.3 ± 0.57^bB	59 ± 1.32^bB	P < 0.0001
C3 (mg dL⁻¹)	39.6 ± 0.57^aA	41.6 ± 0.65^aA	47.06 ± 1.00^bA	48.96 ± 1.00^bA	40.5 ± 0.5^aA	44.6 ± 0.57^bB	56.1 ± 0.85^bB	59.7 ± 0.60^bB	P < 0.0001

Data are provided as mean ± SD (n = 9 fish per treatment). Means in identical rows with different letters considerably vary (P < 0.05). Means in rows with identical lettering do not vary substantially (P > 0.05). Significantly different (P < 0.05) are the main effects of time on the means of rows with different capital letters. IgM, immunoglobulin M; C3, complement 3.