. 2021 Feb 15;9:1274. Originally published 2020 Oct 26. [Version 2] doi: 10.12688/f1000research.27036.2

Table 5. Average length and width of giant trevally ( Caranx ignobilis) juvenile intestinal villi.

	Treatment	Average length and width of intestinal villi ± SD (µm)
	Treatment	Length	width
A.	Without supplementation of rice husk activated charcoal (0%)	56.831 ± 5.099 ^b	13.747 ± 0.225 ^bc
B.	Supplementation of 1% rice husk activated charcoal	55.147 ± 3.920 ^b	11.685 ± 0.376 ^a
C.	Supplementation of 1,5% rice husk activated charcoal	59.549 ± 0.298 ^b	14.048 ± 0.218 ^c
D.	Supplementation of 2% rice husk activated charcoal	64.027 ± 0.876 ^c	16.672 ± 0.676 ^d
E.	Supplementation of 2,5% rice husk activated charcoal	47.204 ± 0.808 ^a	13.666 ± 0.466 ^bc
F.	Supplementation of 3% rice husk activated charcoal	55.182 ± 3.104 ^b	13.136 ± 0.607 ^b

Note: Numbers followed by different letter superscripts are significantly different (P < 0.05).