Health and Carcass Implications of Dietary Inclusion of Graded level of Sun-cured Neem (Azadirachta indica, A. juss) Leaf Meal for Broilers

Good study. Azadirachta indica is currently known to have hypoglycaemic and hypolipidemic effect on animals. One could have expected the researcher to study the energy content (carbohydrate and lipids)of the finished bird carcass to confirm whether the extract can be used to produce lean birds at low dosage. The statement that "the glucose concentrations in this study increase with increased in NM in the diets except for NM5 diet" has to be re-verified as it contradicts hypoglycaemic and hypolipidemic potency of Azadirachta indica. The use of the same SEM for all the treatments is wrong, each treatment should have it own SEM

With due respect to Joseph E. Eyo, the use of SEM for all the treatments is not wrong. That is the pooled SEM, which is a standard form of indicating variability across treatments or treatment means for a given variable such as carcass yield, PCV, glucose etc. What is missing are the P values that readily show the degree or extent of differences in treatment means at a particular level of significance, in this case 0.05. The authors did not also state which ANOVA they employed, either one-way or two-way. In addition, one very glaring shortcoming is the absence of data for growth performance. This could have contributed to alleviating concerns about the lack of hypoglycemic and hypolipidemic potency of Neem in this study.