Table 1.

Composition and nutrient levels of diets (air-dry basis, %).

Items	0–4 Weeks	5–8 Weeks
Sea fish and byproducts	32	32
Unhatched fertilized egg	32	32
Chicken head	20	20
Extruded corn	10	10
Lard	1	2
Soybean meal	2	2
premix 1	3	2
Total	100	100
Nutrient levels
ME (MJ/kg) 2	15.98	17.04
Ether extract	16.65	19.85
Crude protein	31.81	31.26
Calcium	2.47	2.59
phosphorus	1.59	1.64

¹ The premix provided the following per kg of the diets: VA 9000 IU, VC 40 mg, VE 20 mg, VK₃ 0.5 mg, VB₁ 5 mg, VB₂ 3 mg, VB₆ 2.5 mg, VB₁₂ 1 mg, VD₃ 2000 IU, VB₃ 20 mg, VB₅ 6 mg, VB₉ 0.5 mg, VB₇ 0.5 mg, Fe 30 mg, Zn 25 mg, Mn 10 mg, Cu 5 mg, I 0.25 mg, Se 0.2 mg. ² The metabolic energy values are derived from calculations, whereas the remaining values are obtained through direct measurement.