FACULTY OF AGRICULTURE
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Item Reports on the prevalence of pneumo - enteritis among sheep in Ile- Ife, Nigeria(2012) Afolabi, K. D.; Ososanya, T. O.; Alabi, O. M.; Balogun, O. L.Data were collected on the prevalence of pneumo-enteritis among 895 sheep reared ori the semi-intensive system at Obafemi Awolowo University Teaching and Research (OAUTR) farm, lle-Ife and 317 sheep brought from the free range for sale at Ile-lfe Sheep and Goat [ISG] market between the periods of December 1985 to October 1993 and November to October 1993 respectively. At OAUTR farm, 39.51% of the sheep were affected with pneumo-enteritis; 78.13% of the treated sheep [32 in number) recovered while 6.26% mortality was obtained. At ISG market 33.10% of the sheep were affected. The disease was more prevalent during the dry seasons (November to March) at OAUTR farm (9.96%) and ISG market (69.33%) than what obtained during the rainy season (April to October) at the two locations (8.08% and 21.90% respectively). The incidence of the disease was higher among sheep at ISG market than those at OAUTR farm. Bacteriological examination of nasal swabs from infected sheep revealed the presence of Pasteurella haemolytica, Pasteurella multocidci, Streptococci spp. and Coccobacillia bacteria. Prompt treatment of infected sheep elicited recovery.Item Economy of broiler production as influenced by stocking density, protein and energy levels, and season(2018) Ademulegun, T. I.; Adeyemo, G. O.This study was carried out to assess the effect of stocking density, protein and energy levels, and season on the economy of broiler production. In a 6x3x2 factorial arrangement using completely randomized design, six diets with three metabolisable energy (ME kcal;/kg) and two crude protein(%) levels combination: 3106.00 and 23.00 (control, diet 1); 3112.00 and 21.70 (Diet 2); 2928.00 and 23.40(Diet 3); 2933.00 and 21.90(Diet 4); 3227.00 and 23.10(Diet 5); 3230.00 and 21.80 (Diet 6), were formulated. Three stocking densities (birds per m2):10, Low SD (LSD); 12, Recommended SD(RSD); and 14, High SD (HSD), were used in Late Wet Season (LWS), August-November) and Late Dry Season(LDS, February-April). In a seven-week feeding trial, 576 one-week old broilers were assigned to the respective diets and stocking densities, at 32 birds per treatment, in each season. Live weight per m2 (LW/m2, kg), Feed cost per live weight (FC/LW, kg), Gross margin/m2 (GM/m2, N Total Variable Cost/m2 (TVC/m2), were assessed. Data were analyzed using descriptive statistics and ANOVA at α0.06.The LW/m2 was highest (p>0.05) for birds on HSD in both seasons. Birds on diet 4 had highest LW/m2 and lower FC/LW during LWS, while those on diet 1 had highest LW/m2 and lower FC/W during LDS. Birds raised on HSD had highest LW/m2 during both seasons, while those raised during LDS had highest Gm/m2. Late dry season (LDS), RSD&HSD had higher Gm/m2. Total Variable Cost was highest for LWS at HSD and least for LDS at LSD. Broiler production is more profitable during late dry season at stocking 14 birds/m2 with diet containing 3106 MEkcal/kg and 23.0% crude protein.Item Effects of stocking density and season on growth performance and welfare of broiler chickens in Ibadan, Nigeria(2017) Ademulegun, T. I..; Adeyemo, G. O.; Salako, A. E.The study was carried out to investigate the effects of season and stocking density on the growth performance and welfare of broiler chickens in Ibadan, Nigeria. In a seven-week feeding trial, a total of 96 one-week old Arbor Acre broiler chickens were randomly distributed to three stocking densities (birds/m2) of 10, 12, and 14 at the rate of 32 birds per stocking density (SD) during each season; Late Wet (LWS) and Late Dry (LDS). Total Feed Intake (TFI, g), Final Live Weight (FLW, g), Feed Conversion Rate (FCR), Live weight/m2(LW/m2), Normal Gait Score(NGS,%), Survival Rate(SR %), Heterophil: Lymphocyte(H:L) ratio, were assessed. Data were subjected to statistics analysis (ANOVA at α0.05). Birds raised during LWS had higher TFI (4756.60) than LDS birds, while SD had no effect on TFI. Birds on SD of 14 birds/m2 had lower FLW. The FCR was lower during LDS and on SD 10 and 12 Birds/m2. The LW/m2 was higher in birds on SD 14birds/m2. The LWS had higher NGS and lower H:L ratio. Season and SD had no effect on SR. The NGS and H:L were not affected by SD. Broiler chickens could be raised at stocking density of 14birds/m2 during either of the seasons.