FACULTY OF AGRICULTURE
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Item Growth performance and internal organs morphology of broiler chickens fed kenaf seed meal(National Animal Production Research Institute, Zaria, Nigeria, 2017) Adeyemo, G. O.; Bamigboye, O. A.; Idahor, K. O.Kenaf seed meal is a potential feed ingredient in poultry nutrition but little is known about its utilization in broiler diets. This study was carried out to examine the organ weights and intestinal morphology of broilers fed kenaf seed meal in combination with soya bean meal. Two hundred and forty birds were allotted to five treatments replicated six times with eight birds per replicate. The proximate composition of kenaf seed meal was determined, the broilers weight and feed intake were monitored. At six weeks of age, two birds were sacrificed per replicate and vital organs were carefully collected and weighed. Also, the villi width, height and crypt depth were measured. The results of the study show that kenaf seed meal was rich in crude protein (28%), gross energy (3,929Kca/Kg) and crude fibre (3.6%). It was observed that duodenal villi were more influenced than the ileal villi. Hence, the test diet was seemingly more absorbed in the duodenum region than in the ileum, suggesting effective nutrients utilization if offered at safe level.Item Effects of stocking density, energy and protein content on perfonnance of broiler chickens raised during late wet season(Integrity Research Journals, 2016-05) Ademulegun, T. I.; Adeyemo, G. O.A 56-day feeding trial to investigate the effects of stocking density, energy and protein content on performance of broiler chickens during late wet season was carried out. In a 3 x 2 x 3 factorial arrangement using completely randomized design, six diets with three energy and two crude protein levels were formulated. Three stocking densities (birds/m2) of 10, 12 and 14 were used. A total of 576 one-week old Arbor Acre broilers chickens were assigned to the respective diets and stocking density, at 32 birds per treatment. Weight gain, feed intake, feed conversion ratio, survival rate, carcass yield, live weight/m2 and feed cost / live weight were assessed. Data were analyzed, using descriptive statistics and ANOVA α0.05. Energy x crude protein x stocking density interaction affects the feed intake (p<0.05) and the highest value was obtained using diet with low energy and crude protein levels. Treatment did not affect (p>0.05) survival rate, however, stocking density at 12 birds/m2 resulted in the best values (p<0.05) of weight gain (2230.71g) and feed conversion ratio (2.10) and the use of diets with lower crude protein and energy increased (p<0.05) the weight gain (2312.42g). The carcass yield was affected (p<0.05) by the interaction of energy x crude protein x stocking density, (p<0.05) with the lowest value (67.33%) found with birds raised on stocking density, 10 birds/m2 and diets with low crude protein and recommended energy. The lowest feed cost/live weight (p<0.05) was observed with stocking density at 12 birds/m2. Broiler chickens may be economically raised at stocking density 12 birds/m2 and on diet containing 2933kcal/kg ME with 21.92% crude protein for starter phase and 3095 kcal/kg ME and 19.14% crude protein for finishers during late wet season in Nigeria.