Effects of Dietary Fish Meal Replacement with Composite Mixture of Chicken Meal, Krill Meal, and Plant Proteins on Growth, Physiological Metabolism, and Intestinal Microbiota of Chinese Perch (Siniperca chuatsi)

Table 1

Formulation and proximate composition of the experimental diets (%, dry matter basis).

Ingredients (%)	Diets
	Control (D1)	27.27% (D2)	54.55% (D3)
Fish meal	55	40	25
Chicken meal	3	7.5	12
Krill meal	3	7	11
Fermented soybean meal	3	7	11
Soy protein concentrate	3	7	11
Spirulina meal	2	2	2
Wheat gluten	3	3	3
Fish oil	6	6.3	6.6
Lysine	0	0.25	0.5
Methionine	0	0.2	0.4
Calcium dihydrogen Phosphate	1	1	1
Vitamin mix^1	0.5	0.5	0.5
Mineral mix^2	1	1	1
Choline chloride	0.5	0.5	0.5
Gelatinized tapioca starch	15	15	14.5
Cellulose	4	1.75	0
Total	100	100	100
Proximate composition
Crude protein	49.3	49.8	48.9
Crude lipid	11.0	10.9	10.8
Ash	11.1	10.6	9.6
Moisture	8.9	8.5	8.7

¹Vitamin premix (per kg of diet): vitamin A, 6,000 IU; vitamin B₁ (thiamin), 10 mg; vitamin B₂ (riboflavin), 10 mg; vitamin B₆, 10 mg; vitamin B₁₂, 0.05 mg; vitamin D₃, 3,000 IU; vitamin E 60 mg; vitamin K₃ 5 mg; vitamin C, 500; folic acid, 3 mg; biotin, 0.2 mg; pantothenic acid calcium, 40 mg; inositol, 150 mg; niacinamide, 50 mg. ²Mineral premix (per kg of diet): MnSO₄, 12 mg; MgSO₄, 12 mg; KCl, 110 mg; NaCl, 180 mg; ZnSO₄, 25 mg; KI, 1 mg; CuSO₄, 15.5 mg; FeSO₄, 120 mg; Na₂SeO₃, 0.2 mg; Co, 2 mg.