The Assessment of Different Dietary Selenium Resources on Reproductive Performance, Spawning Indicators, and Larval Production of Red Tilapia (Oreochromis mossambicus × O. niloticus) Broodfish

Table 2

Body-organ indices of adult female red tilapia fish fed diets supplemented with various selenium sources over 25 weeks.

Measurements	Experimental groups				P Value
	CTR	Na2SeO3	NPSe	Na2SeO3 + NPSe
HSI (%)	1.87 ± 0.06^b,c	1.67 ± 0.21^c	2.33 ± 0.31^a	2.17 ± 0.29^a	0.008
VSI (%)	14.33 ± 0.29^c	14.73 ± 0.21^b	15.33 ± 0.12^a	15.0 ± 0.10^a,b	<0.001
GSI (%)	3.63 ± 0.23^c	4.07 ± 0.51^b	5.27 ± 0.25^a	4.87 ± 0.35^a,b	<0.001

CTR, control group fed unsupplemented diet; Na₂SeO₃, fish group administered diet supplemented with sodium selenite (1 mg Se/kg); NPSe, fish group administered diet supplemented with selenium nanoparticles (1 mg NPSe/kg); Na₂SeO₃, +NPSe, fish group administered diet supplemented with combination of sodium selenite (0.5 mg Se) and selenium nanoparticles (0.5 mg NPSe) per kg. HSI, hepato-somatic index; VSI, viscera-somatic index; GSI, gonado-somatic index. The presented data were analyzed by applying one-way ANOVA. Data are the mean ± SD. The significant between represented values was identified at . ^a,b,cDifferent lowercase superscript letters in the same row indicate that the difference between groups is significant.