Browsing by Author "Adebiyi, O. A."

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Effects of cocktail enzymes supplementation on performance and gut morphology of arbor-acre broilers fed low density diets based on corn-soyabean meal
(International Academic Journal, 2014-09) Adeyemo, G. O; Awolesi, M. E; Adebiyi, O. A.
The effect of maxigrain cocktail enzyme on performance and gut morphology were investigated in a 42-day feeding trial. A total of 240 one-week-old arbor-acre broiler chickens were fed the following diets at the finisher phase: Treatment 1 (T1): 21% CP+3000 kcal/kgME-Enzyme, Treatment 2 (T2): 21% CP+3000 kcal/kgME+Enzyme, Treatment 3 (T3): 21% CP+2600 kcal/kgME-Enzyme, Treatment 4 (T4): 21% CP+2600 kcal/kgME+Enzyme, Treatment 5 (T5): 17% CP+3000 kcal/kgME-Enzyme, Treatment 6 (T6): 17% CP+3000 kcal/kgME+Enzyme. The experimental design was a completely randomized design. The birds were randomly assigned to six (6) dietary treatments of 4 replicates each and 10 birds per replicate. The birds were fed ad-libitum and were weighed on a weekly basis to determine their growth performance. On day 42, four birds were slaughtered and sections of the duodenum, ileum and jejunum (1 cm) were removed for gut histomorphology. Maxigrain enzyme supplementation significantly increased the performance (average body weight again (ABWG), total average feed intake (TAFI)) especially with birds on treatment 1 (T1) and treatment 2 (T2). Although, birds fed treatments 4 (T4) compared favourably with those on treatment 1 (T1). Enzyme supplementation had significant (P<0.05) effect on the villus height (VH), crypt depth (CD), villus width (VD), muscular width (WD) and the villus to crypt depth ratio (V:CD) of the birds duodenum, jejunum and ileum sections across the treatments. These dietary supplement had significant (P<0.05) effect on the villus height (1629.00 µm-5620.00 µm (duodenum), 1731 µm-6851 µm (jejunum), 1149 µm-5061 µm (ileum)), crypt depth (155.00 µm-641.10 µm (duodenum), 214.40 µm-873.60 µm (jejunum), 158.60 µm-751.10 µm (ileum)), villus width (148.40 µm-426.30 µm (duodenum), 151.00 µm-538.10 µm (jejunum), 131.60 µm-675.50 µm (ileum)) and muscular width (421.70 µm-1347.30 µm (duodenum), 445.30 µm-1347.30 µm (jejunum), 334.30 µm-1584.60 µm (ileum)) and the villus to crypt depth ratio (7.90-12.03 (duodenum), 7.84-9.83 (jejunum), 6.02-11.21 (ileum)). Effect of enzyme inclusion better increased the histomorphometric parameters measured of bird's duodenum, jejunum and ileum particularly of birds on T4. The villus to crypt depth ratio of bird's duodenum section fed T2 and T6 were increased by enzyme supplementation however, there were decreases in the jejunum and ileum sections of birds fed T2 and T4. Maxigrain cocktail enzyme resulted in improved growth performance and gut morphology of broiler birds fed low energy diets, giving a cost-effective nutritional strategy for profitable broiler production.
Performance and carcass characteristics of broiler chicken fed soybean and sesame/soybean based diets supplemented with or without microbial phytase
(2014-07) Omojola, A. B.; Otunla, T. A.; Olusola, O. O.; Adebiyi, O. A.; Ologhobo, A. D.
Aims: The experiment was conducted to investigate the performance and carcass characteristics of meat-type chicken fed Soybean Meal (SBM) and Sesame/Soybean Meal (SSBM) supplemented with or without microbial phytase. Study Design: The experiment employed a complete randomized design; all data generated were subjected to analysis of variance, P=0.05. Place and Duration of Study: The study was carried out at the Teaching and Research Farm of the University of Ibadan, Nigeria, between October and December, 2011. Methodology: One hundred and sixty-eight unsexed two weeks old Arbor Acre strain chickens were used in a 35-day feeding trial. Two feeding regimes of soybean meal and Sesame/soybean meal based diets were formulated. Each feeding regime comprised of control diet and two levels of phytase units (300 and 600 FTU/kg) of 500 unit /g activity making a total of six dietary treatments. The birds were fed the experimental diets for a 35- and Feed Conversion Ratio (FCR). At the end of the feeding trial, three birds were slaughtered per replicate to evaluate carcass and meat characteristics. Results: The addition of phytase improved the birds’ performance, FI and FCR. Significant (P<0.05) increase was obtained for apparent retention of nitrogen (67.22%), ash (74.85%), ether extract (65.43%), crude fibre (76.22%) and Phosphorus (45.58%). Cooking loss values increased while the Water Holding Capacity (WHC) reduced with microbial phytase supplementation. Conclusion: Sesame/soybean diet supplemented with 300 FTU/Kg microbial phytase gave optimum performance and should probably be adopted as the feeding regime of choice since it also resulted in better nutrient utilization by the birds.
Performance and carcass traits of broilers fed ‘wood ash digested maize cobs’ based diets fortified with grandizyme
(The Nigerian Society for Animal Production, 2012-03) Oyadeyi, O. S.; Olusola, O. O.; Olaniyan, O. O.; Adebiyi, O. A.
The growth and carcass traits of broilers were investigated using 200 unsexed day old chicks. Wood ash digested maize cobs (WADMC) fortified with grandizyme at graded levels were incorporated in the diet and used to assess the performance and carcass traits of the experimental birds. In a completely randomized design, 40 birds were assigned to each of the five dietary treatments A-E. The control A had no WADMC and no enzyme, while diets B, C, D and E had 5, 10, 15 and 20% inclusion levels of WADMC respectively with 5g of the enzyme per 100kg of feed. Starter diets with these inclusions were fed to birds from day-old. Data collected include the feed intake, weight gain, organ and carcass weights. The results obtained revealed that the birds fed diets B, C and D digested the maize cobs based diets fortified with enzymes betterl as reflected in the primal cuts from carcass and were significantly different (P<0.05) than from treatments A and E. The feed intake of birds in treatment A and E significantly differed from that of treatments B, C and D Birds in treatment E recorded high incidence of prolapsed. It could be concluded that the performance and carcass characteristics of WADMC based diets at 10 and 15% levels of inclusion fortified with 5grams of enzyme was better those on 5 and 20%.
Performance and tenderness of meat-type chicken fed soybean and benniseed based diets supplemented with microbial phytase
(Animal Science Association of Nigeria, 2010-09) Adetoro, B. O.; Olusola, O. O.; Omojola, A. B.; Ologhobo, A. D.; Adebiyi, O. A.
This experiment was designed to investigate the performance and shear-force (tenderness) of meat-type chicken (broiler) fed Soybean Meal (SBM) and Benniseed based diets supplemented with microbial phytase. 168 Arbor acre strain of broiler chicks were used with Phytase activity of5000 units/ g, two levels of phytase inclusion were used in the study (300 and 600 FTU/kg) in a completely randomized design Birds were allotted into six treatments, with four replicates of 7 birds per replicate. Parameters measured include Body Weight Gain (BWG), Feed Intake (FI) and Feed Conversion Ratio (FCR) which were measured weekly. 2 birds/ replicate were sacrificed at the end of 56days trial and birds were eviscerated and split into primal cuts (thigh, breast and drumstick). The boiled primal cuts were used for the Shear-force assessment. At the end of the 56 days, the FI revealed a significant increase in birds fed Benniseed based diet with 300FTU (101.98g/bird/day) compared to birds on SBM (93.23g/bird/day) and birds fed Benniseed based diet also had the best BWG of2212.50 g compared to SBM based diet with 1557.50g both with 300FTU phytase activity. The birds on Benniseed based diets also had a more tender muscle.