Table 3 Economy of production of Isa Brown layers on different management systems

Cost/kg feed (₦)

130.00 ± 0.00

130.00 ± 0.00

130.00 ± 0.00

< 0.01

Daily feed intake (g)

114.83 ± 0.17^a

114.00 ± 0.52^a

109.67 ± 0.42^b

< 0.01

Total feed intake (kg)

7.46 ± 0.01^a

7.41 ± 0.03^a

7.13 ± 0.03^b

< 0.01

Total cost of feed consumed (₦)

970.34 ± 1.41^a

963.30 ± 4.36^a

926.68 ± 3.56^b

< 0.01

Quantity of egg produced/bird

47.53 ± 0.37^b

48.87 ± 0.37^a

45.93 ± 0.37^c

< 0.01

Crate of eggs produced/bird

1.58 ± 0.01^b

1.63 ± 0.01^a

1.53 ± 0.01^c

< 0.01

Cost of egg/crate (₦)

850.00 ± 0.00

850.00 ± 0.00

850.00 ± 0.00

< 0.01

Cost of layers (₦)

900.00 ± 0.00

900.00 ± 0.00

900.00 ± 0.00

< 0.01

Operational cost (₦)

104.20 ± 0.00

104.20 ± 0.00

104.20 ± 0.00

< 0.01

Cost of construction(₦)

277.00 ± 0.37^a

222.00 ± 0.37^b

144.00 ± 0.37^c

< 0.01

Revenue from eggs (₦)

1346.78 ± 10.35^b

1384.56 ± 10.35^a

1301.44 ± 10.35^c

< 0.01

Production cost (TVC) (₦)

2251.54 ± 1.64^a

2189.5 ± 4.51^b

2074.88 ± 3.81^c

< 0.01

Sales of spent birds (₦)

1100.00 ± 0.00

1100.00 ± 0.00

1100.00 ± 0.00

< 0.01

Net benefit/profitability index (₦)

195.24 ± 11.54^b

295.06 ± 12.92 ^a

326.56 ± 13.3^a

0.05

Cost-benefit ratio

0.14 ± 0.01^c

0.21 ± 0.01^b

0.25 ± 0.01^a

< 0.01