2 research outputs found

    Prospects and constraints on utilization of Jatropha curcas seeds in animal feedstuff

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    Combined physical, chemical and biochemical methods were used to process virgin seed meal of Jatropha curcas L. into treated Jatropha Seed Meal (JSM). Graded levels (0, 5, 10, 15, 20 and 25%) JSM treated by the various methods was included in the test diets which were fed ad libitum to 360 albino rats for a month in a single factor design trial. The results revealed that feed intake was numerically highest (p > 0.05) for the rats on the 5 % treated JSM diet, while feed efficiency was highest (p > 0.05) for those on the 10 % treated JSM diets. Weight gain was significantly highest (p< 0.05) for the rats on 10 and 15 % treated JSM diets. Lowest survival rate (17%) was observed on treated JSM diet processed by boiling, roasting followed by fermenting. Biochemical indices measured on treated JSM based diets were comparable with those obtained on the conventional diet (p > 0.05) except for blood cholesterol level (p < 0.05) which was elevated with increasing treated JSM in diets. There were also no significant differences recorded on AST and ALP activities (p > 0.05) between the treatments. Haematological indices investigated including PCV, RBC, Hb were insignificantly influenced by the 5% dietary treated JSM compared with the control diet (p > 0.05) and there was non-significant effect of the dietary treatment on the WBC differential counts of lymphocytes, eosinophils, monocytes and neutrophils. It was established in this study that inclusion of 5% treated JSM in diets had no detrimental effect on albino rats. Further researches are in progress to investigate inclusion of the treated JSM in diets at levels higher than the 5% used in this study.Keywords: JSM, Cockerels, Performance, Biochemical and haematological parameter

    Some nutritional and toxicological studies of Jatropha curcas seed meal in poultry nutrition

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    Combined physical, chemical and biochemical methods were used to process virgin seed meal of Jatropha curcas into Treated Jatropha Seed Meal (TJSM). 5 % TJSM processed by the various methods was included in test diets 2 to 6 which were fed to cockerel chicks at hatch compared to a maize-soybean conventional diet (diet 1). 144-olympiad cockerel chicks were used in a single factor design experiment and fed ad libitum the six experimental diets for a period of one month. Dietary performance traits gave no significant differences in feed consumption and weight gain on the test diets relative to the control diet (p > 0.05). However, significant difference was recorded on feed efficiency between the reference diet and the test diets whereby the test diets gave less efficiency compared with the control (p < 0.05). Highest mortality rate (83 %) was observed on the diet with JSM which was boiled, roasted and fermented. The biochemical determinants measured on the Jatropha based diets were comparable with those of the conventional diet (p > 0.05) except the value on the blood cholesterol level which was elevated on the Jatropha containing diets (p < 0.05). Also, no significant differences were recorded on AST and ALP activities between the control and test diets (p > 0.05) except the activity of ALT (p < 0.05) which increased on diets with the treated Jatropha. Parameters investigated on haematological parameters such as PCV, RBC and Hb were not significantly affected by dietary treated JSM compared to these values on the control diet (p > 0.05). Similar non-significant effect of dietary treated JSM was observed on the WBC differential counts (p > 0.05). It was established in this study that inclusion of 5 % treated Jatropha seed meal had no deleterious effects on poultry. Further researches are recommended to investigate the acceptability of treated JSM at higher inclusion levels in poultry or other livestock.Keywords: JSM, cockerels, performance, biochemical and haematological indice
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