Table 4.

Economic analysis of using CRM in place of GNC in diets of laying hens

Cost variables, ₦	Soyabean meal	Groundnut cake	Cashew reject meal
Actual market price	100	85.00	25.00
Relative worth	100	97.25	90.00
Av. cost of feed/kg	-	59.71	50.61
Cost of feed/kg egg weight	-	218.53	200.50
Cost save per tonnage of feed	-		9,100
Cost save per tonnage of egg laid			18,030

Equation: Relative worth of CRM (with 35.4% CP and 2800 kcal) = 354x + 2800y.

Where × = 0.111 protein cost, y = 0.0183-energy cost.

Obtained from: maize (8.6% CP, 3300 kcal/kgME) and soyabean meal (48%CP, 2550 kcal/kgME) as reference energy and protein ingredients respectively. Given the cost prize for maize and soyabean at the time of the experiment -₦70.00 and ₦100.00 respectively.

Hence 86x + 3300y = 70------equation 1 and 480 × + 2550y = 100 -------equation 2.