Blood chemistry and relative organ weights of rabbits fed neem leaf meal based diets

Abstract

Two experiments were conducted to determine the effect of neem leaf meal (NLM) based diets on blood and relative organ weight characteristics of rabbits. In the first experiment, 36 rabbit bucks aged 7 to 8 months were distributed into four dietary groups, T₁ , T₂ T₃ and T₄ of 9 rabbits using completely randomized design. Each group was replicated 3 times with 3 rabbits per replicate. Rabbits in T₁ group were fed diet that contained 0% NLM while those in T₂ T₃ and T₄ groups were fed diets that contained NLM at 5%, 10% and 15%, respectively for 112 days. In the second experiment, 36 rabbit does were used and experimental procedures were laid out as described in experiment 1. Blood samples for analysis, live weight and organ weights were collected from each replicate and data obtained analysed statistically. Higher (p<0.05) kidney weight was obtained for rabbit does on diets T₂ T₃ and T₄ . Bucks on diet T₂ recorded significantly (p<0.05) higher pancreas weight than those on diet T₁ diet. No significant effect (p>0.05) on haematological parameters was observed among all treatments except for MCV and neutrophils which were significantly (p<0.05) decreased in the groups fed diets T₂ and T₄ and diets T₁ and T₃ groups respectively than others. Rabbit bucks and does on diet T₁ recorded significantly (p<0.05) higher serum cholesterol values than those on the other diets. Serum glucose value of rabbits on diet T₄ was significantly (p<0.05) different from those on the other diets. Serum ALP value of rabbits on diet T₁ differed significantly (p<0.05) from those on the other 3 diets with the exception of bucks on diet T₄ that had similar value with those on diet T₁ . Addition of neem leaf meal in rabbit diets increased serum AST and ALT values but the differences were not significant (p>0.05). It was therefore concluded that up to 5% of neem leaf meal can be included in the diet of pubertal rabbits without any deleterious effects on their organs and blood characteristics.

Keywords: Rabbits, neem leaf meal, haematology, serum biochemistry, organs