Supplementation of Microbial Phytase with Safflower Meal in Rainbow Trout (Oncorhynchus mykiss): The Effects on Growth, Digestibility, Environmental, and Serum Biological Parameters

Table 5

Biochemical composition of fish and feces.

Parameters	Initial	Control	SFM10	SFM20	SFM10 ± P1000	SFM20 ± P2000
Crude protein (%)	13.40±0.07^a	20.94±0.14^d	16.49±0.33^b	18.95±0.34^c	19.59±0.74^c	20.96±0.24^d
Crude lipid (%)	3.27±0.21^a	3.37±0.13^a	3.21±0.43^a	3.69±0.23^a	4.04±0.50^a	4.46±0.90^a
Crude ash (%)	1.88±0.02^b	1.79±0.07^b	1.63±0.02^a	1.76±0.04^ab	1.8±0.03^b	1.87±0.04^b
Moisture (%)	77.79±0.17^c	72.83±0.10^a	75.10±0.24^b	74.84±0.24^b	74.54±0.44^b	72.96±0.48^a
Dry matter (%)	22.21±0.16^a	27.17±0.08^c	24.90±0.24^b	25.16±0.25^b	25.46±0.36^b	27.04±0.11^c
Phosphorus in feed (%)	—	1.01±0.04^a	1.22±0.06^b	1.18±0.05^b	1.19±0.01^b	1.20±0.02^b
Phosphorus in feces (%)	—	0.76±0.04^a	0.97±0.02^b	0.83±0.05^ab	0.79±0.05^ab	0.70±0.08^a
Crude protein in feces (%)	—	10.07±0.31^b	8.72±0.01^a	8.66±0.10^a	9.01±0.04^a	8.62±0.11^a
Crude lipid in feces (%)	—	1.02±0.00^a	1.51±0.00^a	2.22±0.00^b	1.13±0.06^a	1.81±0.44^b

Each value refers to mean ± standard deviation. Values expressed in different exponents in the same row are statistically different from each other .