Research Article

Effects of Dietary Phospholipid and Cholesterol Levels on Growth, Molting Performance, and Ovary Development in Female Juvenile Crayfish (Procambarus clarkii)

Table 1

Feed formulations and approximate compositions of the experiment diets (g/kg dry matter).

IngredientsDiets (phospholipid-cholesterol level (g/kg))
Diet1Diet2Diet3Diet4Diet5Diet6Diet7Diet8Diet9
(0/0)(20/0)(60/0)(0/5)(20/5)(60/5)(0/10)(20/10)(60/10)

Casein300.0300.0300.0300.0300.0300.0300.0300.0300.0
Gelatin75.075.075.075.075.075.075.075.075.0
Corn starch385.0385.0385.0385.0385.0385.0385.0385.0385.0
Soybean oil70.050.010.065.045.05.060.040.00.0
Soybean lecithin0.020.060.00.020.060.00.020.060.0
Cholesterol0.00.00.05.05.05.010.010.010.0
Cellulose40.040.040.040.040.040.040.040.040.0
Choline chloride5.05.05.05.05.05.05.05.05.0
Betaine5.05.05.05.05.05.05.05.05.0
Vitamin premixa30.030.030.030.030.030.030.030.030.0
Mineral premixb20.020.020.020.020.020.020.020.020.0
CMC-Na30.030.030.030.030.030.030.030.030.0
Yeast extract40.040.040.040.040.040.040.040.040.0
Proximate composition (dry matter (g/kg))
Crude protein401.1409.9403.8405.1409.6400.1403.4409.9409.2
Crude lipid72.171.171.970.972.171.771.771.672.0
Moisture105.5101.2101.0103.7103.9104.6103.4104.9103.3
Ash49.151.353.248.851.853.749.250.656.4

aVitamin premix provided the following per kg of diets: VA 62500 IU, VD3 15000 IU, VE 1.05 g, VK3 35.4 mg, VB1 100 mg, VB2 150 mg, VB6 150 mg, VB12 0.2 mg, VC 700 mg, biotin 4 mg, D-calcium pantothenate 250 mg, folic acid 25 mg, and nicotinamide 300 mg. bMineral premix provided the following per kg of diets: FeSO4·H2O 200 mg, CuSO4·5H2O 96 mg, ZnSO4·H2O 360 mg, MnSO4·H2O 120 mg, MgSO4·H2O 240 mg, KH2PO4 4.2 g, NaH2PO4 0.5 g, KI 5.4 mg, CoCl2·6H2O 2.1 mg, and Na2SeO3 3 mg.