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

Table 3

Serum reproductive hormone levels of adult female red tilapia fish fed diets supplemented with various selenium sources over 25 weeks.

Measurements (IU/mL)	Experimental groups				P Value
	CTR	Na2SeO3	NPSe	Na2SeO3 + NPSe
β-HCG	2.73 ± 0.21	2.67 ± 0.23	2.87 ± 0.06	2.76 ± 0.12	0.416
FSH	2.37 ± 0.40^b,c	2.43 ± 0.06^b,c	2.20 ± 0.20^d	2.96 ± 0.06^a	0.001
LH	13.17 ± 0.29^d	14.37 ± 0.32^c	19.23 ± 0.25^a	15.80 ± 0.10^b	<0.001
Estradiol-17β	3083.3 ± 76.37^d	3543.3 ± 40.41^c	3946.6 ± 45.09^a	3880 ± 75.50^b	<0.001
Progesterone	9.85 ± 0.30^c,d	10.23 ± 0.23^c	13.3 ± 0.26^a	12.36 ± 0.06^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. β-HCG, human chorionic gonadotropin beta; FSH, follicle-stimulating hormone; LH, corpus lutetium hormone. 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,c,dDifferent lowercase superscript letters in the same row indicate that the difference between groups is significant.