Effects of Antarctic Krill Meal in Diet on Reproductive Performance and Embryo Quality of Eriocheir sinensis

Table 1

Formulation and composition of experimental diets (%).

Ingredients	Diet K0	Diet K10	Diet K20
Antarctic krill meal	—	10.0	20.0
Fish meal	40.0	40.0	40.0
Soybean meal	18.0	18.0	18.0
Casein	8.2	5.5	3.8
Wheat gluten meal	23.25	15.65	7.15
Mineral premix	1.0	1.0	1.0
Vitamin premix	0.5	0.5	0.5
Fish oil	6.0	6.0	6.0
Choline chloride	0.5	0.5	0.5
Ca(H2PO4)2	0.5	0.5	0.5
Inositol	0.5	0.5	0.5
Cholesterol	0.4	0.4	0.4
Vitamin C	0.65	0.65	0.65
Astaxanthin	0.5	0.8	1.0
Total	100.00	100.00	100.00

Note: Diet K0, Diet K10, and Diet K20 represent diets in which Antarctic krill meal is 0%, 10%, and 20%, respectively. Fish meal, soybean meal, casein, wheat gluten meal, and fish oil: from Shanghai, Yongnong Feed, Minhang, Shanghai, China; Inositol: from Shanghai Chemical Reagent, Huangpu, Shanghai, China; Monocalcium phosphate: from Sinopharm Chemical Reagent Co., Ltd., China; Choline chloride, vitamin C, and astaxanthin: purchased from Aladdin; Mineral premix: 1 kg of diet contained Ca(H₂PO4)₂, 10 g; MgSO₄ · 7H₂O, 2.4 g; KCl, 4.5 g; NaCl, 2.1 g; FeSO₄ · H₂O, 155 mg; CuSO₄ · 5H₂O 40 mg; ZnSO₄ · H₂O 80 mg; MnSO₄ · H₂O 30 mg; KI, 11.7 mg; CoCl₂ · 6H₂O 4.8 mg; Na₂SeO₃, 2.4 mg. Vitamin premix (mg/kg diet): vitamin A, 32; vitamin E, 200; vitamin D3, 0.05; vitamin B1, 30; vitamin B2, 30; vitamin B6, 20; vitamin B12, 0.1; nicotinic acid, 200; folic acid, 15; biotin, 3; calcium pantothenate, 100.