Estimation of the Optimum Dietary Protein to Lipid Ratio in Juvenile Pengze Crucian Carp (Carassius auratus Var. Pengze)

Table 2

Growth response, feed utilization, and physical parameters of Pengze crucian carp (Carassius auratus var. Pengze) juveniles fed diets with different protein and lipid levels¹.

Diet no. (protein/lipid)	IBW^2	WG^3 (%)	Feed intake^4 (g/100 g ABW^5/d)	FCR^6	SGR^7	VSI^8 (%)	HSI^9 (%)	^10	Liver glycogen
Diet 1 (30/5)		^a	^b	^b	^a	^ab	^ab	^a	^b
Diet 2 (30/8)		^ab	^ab	^ab	^ab	^ab	^c	^d	^b
Diet 3 (30/11)		^ab	^ab	^ab	^ab	^ab	^bc	^d	^b
Diet 4 (35/5)		^c	^ab	^a	^c	^ab	^a	^cd	^ab
Diet 5 (35/8)		^bc	^ab	^a	^bc	^b	^ab	^ab	^ab
Diet 6 (35/11)		^abc	^ab	^a	^abc	^ab	^ab	^cd	^ab
Diet 7 (40/5)		^ab	^ab	^ab	^ab	^a	^a	^bc	^a
Diet 8 (40/8)		^ab	^a	^ab	^ab	^ab	^a	^ab	^a
Diet 9 (40/11)		^ab	^ab	^ab	^ab	^b	^a	^cd	^a
Protein level (%)
30		^u	^v	^v	^u		^v		^w
35		^v	^u	^u	^v		^u		^v
40		^u	^uv	^v	^u		^u		^u
Lipid level (%)
5						^x		^x
8						^y		^x
11						^y		^y
Two-way ANOVA ( value)
Protein		0.000	0.003	0.000	0.000	0.413	0.000	0.168	0.000
Lipid		0.935	0.102	0.208	0.923	0.035	0.136	0.003	0.498
		0.010	0.610	0.244	0.010	0.765	0.047	0.000	1.000

¹Data are expressed as (). Values in the same column with different superscripts are significantly different (). ^uvwSignificant () difference between protein levels within the same lipid level. ^xySignificant () difference between lipid levels within the same protein level. ²IBW: initial body weight (g). ³WG: . ⁴Feed intake . ⁵ABW: average body weight . ⁶FCR: . ⁷SGR: specific growth rate . ⁸VSI: viscerosomatic index . ⁹HSI: hepatosomatic index . ¹⁰: , Fulton’s condition factor . ¹¹LG: liver glycogen (mg/g).