Effects of Varying Dietary Protein Levels on Growth Performance, Survival, Body Composition, Haemato-Biochemical Profile, and Metabolic Responses of Hypselobarbus jerdoni (Day, 1870) Juveniles

Table 2

Physicochemical parameters of water in different experimental units during 60 days of the feeding trial.

Parameters	^aTreatments
	TCP20	TCP25	TCP30	TCP35	TCP40	TCP45
Temperature (°C)	27.23–29.87	27.32–29.78	27.28–29.92	27.26–29.89	27.16–29.77	27.28–29.91
^bDO (mg/l)	5.76–6.13	5.62–6.09	5.69–6.32	5.99–6.41	5.85–6.24	5.99–6.06
pH	7.02–7.05	6.99–7.23	7.03–7.43	7.08–7.11	7.12–7.44	7.00–7.32
Total alkalinity (mg/l)	71.23–82.23	70.21–79.82	71.65–80.33	73.24–81.76	70.06–81.55	70.11–82.35
Hardness (mg/l)	184.32–198.92	185.22–199.92	184.65–192.92	186.88–199.93	183.78–199.23	184.44–198.67
^cTA-N (mg/l)	0.03–0.06	0.03–0.04	0.02–0.07	0.03–0.08	0.02–0.08	0.04–0.07
^dNO^−2-N (mg/l)	0.002–0.004	0.003–0.005	0.003–0.008	0.006–0.008	0.002–0.006	0.002–0.005
^eN0^−3-N (mg/l)	0.03–0.05	0.05–0.06	0.05–0.08	0.04–0.08	0.03–0.04	0.03–0.09
^fFree CO2 (mg/l)	ND	ND	ND	ND	ND	ND

^aTreatment groups having graded levels of protein, i.e., TCP20, 200 g/kg protein; TCP25, 250 g/kg protein; TCP30, 300 g/kg protein; TCP35, 350 g/kg protein; TCP40, 400 g/kg protein; TCP45, 450 g/kg protein. ^bDO, dissolved oxygen. ^cTA-N, total ammonia nitrogen. ^dNO⁻²-N, nitrite nitrogen. ^eN0⁻³-N, nitrate nitrogen. ^fFree CO_2, free carbon dioxide. ND, not detected.