Comparative evaluation of palm oil and lard as partial replacement for maize in broiler chicken diets
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Abstract
This study investigated the effect of animal and plant lipids in the diets of broiler finisher birds with respect to their growth performance and abdominal fat deposition. A total of180 birds of mixed sex were completely randomized into three dietary treatments A, B and C, with 0, 8% animal lipid and 8% plant lipid as replacements for maize respectively. Each treatment was replicated thrice and each replicate had 20 birds. Result showed significant improvement (P<0.05) in feed intake of birds on lard, followed by palm oil and thenthe control in that order, likewise final live weight, weight gain, feed conversion ratio and protein efficiency ratio. The cost/kg feed intake did not showany significant differences likewise the cost/kg weight gain (N). Among the nutrient retention parameters, only ash and ether extract showed significant (P< 0.05) differences, with birds on the control diet significantly possessing (P < 0.05) higher ash content than both lard and palm oil diets. Ether extract was better retained by birds on lard, followed by palm oil. The liver and heart of birds on lard and palm oil were heavier than that of the control. Birds on diet containing lard had the highest (P<0.05) abdominal fat followed by birds on palm oil diet. It was concluded that 4% animal fat (lard) (replacing maize) as an energy source enhances growth performance than palm oil in broiler finisher diets but with attendant abdominal fat deposition
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