A study was conducted to investigate the inclusion of neem leaf (Azadirachta indica) as a protein source in the diet of broilers and layers. A total of one hundred and fifty broiler chicks and one hundred and fifty point-of-laying pullets were assigned to five dietary treatments in a completely randomised design. Five dietary treatments were formulated with varying levels of Neem Leaf Meal (NLM) inclusion. D1 (0% NLM), D2 (5% NLM), D3 (10% NLM), D4 (15% NLM) and D5 (20% NLM) with 30 birds per treatment, 10 birds per replicate and replicated thrice. The experimental trial for broiler chickens lasted for eight weeks, and the layers experimental trial lasted for twelve weeks, during which the nutrient retention of the birds was determined. There were no significant (p>0.05) differences in the nutrient retention of broilers fed the experimental diets. On laying birds’ trial, the result showed that crude protein, ash, ether extract, crude fibre and dry matter were significantly (p<0.05) influenced by dietary treatments. It was concluded that dietary treatments significantly influenced nutrient retention in laying birds, with notable effects on crude protein, crude fibre, ether extract, ash, and dry matter. The results underscore the importance of optimizing dietary formulations to enhance nutrient utilization, reduce waste, and promote sustainable egg production. Therefore, 10% NLM inclusion is recommended for optimal performance in broiler and layer production.
Adebomi et al. (Wed,) studied this question.