A ten-week investigation was undertaken to assess the incorporation of Hevea brasilliensis seed meal (RSM) as an alternative to soyabean meal (SBM) in rabbits' feed. Sixty kit rabbits were distributed at random to four treatments diets and five rabbits / replicate in a completely randomized design (CRD). The diets consist of a control diet (0% RSM) as well as three experimental diets, containing 25%, 50% and 75% RSM. Results showed that RSM affected (P < 0.05) the rabbits' blood profile and performance. The weight gain was similar (P > 0.05) up to 50% SBM replacement, while feed conversion ratio (FCR) were similar (P > 0.05) across the replacement levels. The highest weight gain and best FCR were observed in diets containing 50% and 25% RSM respectively. The highest values of packed cell volume (PCV), haemoglobin (Hb), white blood cells (WBC), mean corpuscular volume (MCV), and mean corpuscular haemoglobin (MCH), were noted in Diet 4 (75% RSM). The total protein increased with an increased level of RSM in the diet, while as RSM in the diet increased, the liver enzymes dropped. . In conclusion, RSM could effectively replace 50% SBM as protein ingredient in growing rabbits' diets.

A study was undertaken for 56 days to determine the growth performance and blood profile of Noiler chicks fed diets with different levels of Parkia biglobosa leaf meal (PBLM) as a partial replacement of soya bean meal (SBM). A total of ninety-six unsexed Noiler day-old chicks were allotted into four dietary groups of 24 chicks with three replicates of eight per group based on weight equalization using a Completely Randomized experimental design. Group 1 containing 0% PBLM (control), groups 2 to 4 had SBM replaced at 5% 10% and 15% in their diets respectively. Data were collected on feed intake, weight gain, feed conversion ratio, feed cost reduction, haematological and serum indices. Results showed that PBLM had an effect (p<0.05) on the growth performance, feed cost reduction, and blood profiles. There was better performance up to 10% PBLM but the performance declined significantly at a higher inclusion level. There was an improvement in the haematological parameters up to 10% PBLM inclusion. The AST and ALP increased significantly with the increased level of PBLM while the total protein, albumin, cholesterol and glucose reduced with the increased level of PBLM: nevertheless, there were no influences (P > 0.05) on the protein and albumin values. The result of this study, therefore, suggested that soya bean meal in Noiler chick diets can be replaced by up to 10% of PBLM without harmful effects on the growth and blood profile.

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