Beta-Agonist, Ractopamine Hydrochloride, Improves Growth, Alters Body Composition, and Suppresses Gonadal Maturation in All-Female Giant Freshwater Prawn, Macrobrachium rosenbergii

Table 1

Growth performance parameters and gonadosomatic index (GSI) of all-female prawn fed with dietary RAC for 60 days ().

Parameter	Ractopamine levels (mg/kg)					Regression analysis
	0	5	10	15	20	Coeff. ( value)	Coeff. ( value)
Initial length (cm)
Final length (cm)	^d	^c	^a	^ab	^bc
Initial weight (gm)
Final weight (g)	^d	^c	^a	^b	^bc	-0.0983 (0.0)	2.451 (0.0)	0.65
Weight gain (g)	^d	^c	^a	^b	8^c	-0.0983 (0.0)	2.451 (0.0)	0.65
DWG (g/day)	^d	^b	^a	^b	^bc	-0.0016 (0.0)	0.041 (0.0)	0.65
SGR (% bw/day)	^d	^b	^a	^b	^bc	-0.0063 (0.0)	0.161 (0.0)	0.69
Survival rate (%)	^b	^ab	^a	^a	0^ab	-0.1714 (0.0)	3.962 (0.0)	0.64
FCR	^b	^a	^a	^a	^a	0.0043 (0.0)	0.102 (0.0)	0.58
Yield (g/m^2)	^d	^c	^a	^ab	^bc	-1.2014 (0.0)	28.845 (0.0)	0.82
Condition factor	^b	^ab	^a	^ab	^ab
GSI	^c	^bc	^a	^ab	^bc

Each numerical value is ; . The mean values of the different alphabetical superscripts within the same row indicate statistically significant differences at 5 (one-way ANOVA followed by post hoc Tukey test).