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Articles by J.O. Atteh
Total Records ( 3 ) for J.O. Atteh
  J.O. Oyedeji and J.O. Atteh
  The study investigated the response of broilers to different feeding manipulations. Six groups of day old Anak broilers were randomly assigned to either one of the following feeding methods from day old to 3 weeks; Ad libitum feeding, Skip-a-day feeding, 50% of ad libitum feeding, 6 hours of light and 18 hours of darkness per day, 3% dietary ammonium sulphate or diet containing 18% protein and 2800 kcal/kg ME. Broilers were thereafter fed the same finisher diet to market age. Results at market age showed that feed intake was significantly reduced by all but one of the feed restriction methods investigated (P< 0.05, P<0.01). Weight gains were comparable among broilers regardless of the feeding method (P>0.05, P>0.01). Feed to gain ratio was significantly reduced in broilers placed on 50% of ad libitum feeding (P<0.05, P<0.01). Feeding methods did not affect broilers liveability (P>0.05, P>0.01). Cost to benefit ratio of broiler production was significantly reduced by skip-a-day and 50% of ad libitum feeding methods (P<0.05, P<0.01). Also abdominal fat pad, a factor that downgrades carcass value was significantly reduced by skip-a-day and 6 hours of lighting per day feeding methods (P<0.05, P<0.01). It was concluded that for both cost and abdominal fat reduction, skip-a-day feeding method for 3 weeks would offer the best alternative to the usual ad libitum feeding in broilers.
  J.O. Oyedeji and J.O. Atteh
  The study investigated the effects of photoperiod and nutrient density on the performance and abdominal fat of broilers. Treatments consisted of a factorial arrangement of two diets containing 3200kcal/kg ME and 23% Protein and 2800kcal/kg ME and 18% Protein administered to broilers under either 12hour light per day, 8hour light per day or 6 hour light per day for 8 weeks. Results at market age showed that no significant interactions existed between nutrient density and photoperiod for feed intake, body weight gain and feed gain ratio (P > 0.05, P > 0.01). Also no significant interactions existed between factors for protein retention, fat utilization, available fibre, abdominal fat and cost to benefit ratio (P > 0.05, P > 0.01). Broilers subjected to low nutrient density diets experienced reduction in body weight gain and poorer feed to gain ratio (P < 0.05, P < 0.01). There was significant reduction in feed intake and abdominal fat of broilers exposed to only 6 hours of light per day as against the usual 12 hours of light per day (p < 0.05, p < 0.01). It was concluded that no meaningful interactions existed between nutrient density and photoperiod with respect to broilers performance. However, reducing photoperiod to 6 hours per day could be used as a tool for reducing abdominal fat hence, reducing sudden death syndrome and upgrading carcass quality of broilers.
  L.M.O. Ibiyo , J.O. Atteh , J.S. Omotosho , C.T. Madu and A.N. Okaeme
  A completely randomised design with three replicates was used for an experiment conducted to study the profitability of vitamin C inclusion into the ration formulation of Heterobranchus longifilis. Graded levels (0, 50, 100, 150, 200 or 250) mg vitamin C kg 1 diet as ascorbate polyphosphate was included in a 42.5% crude protein basal diet and fed to triplicate groups of twenty fingerlings. The groups fed diets with vitamin C had statistically significant (p< 0.05) higher final weight than the group fed the control diet without vitamin C at the end of twenty weeks study. Feed consumed was significantly (p< 0.05) lower in the group fed diet without vitamin C. There was a significant difference (p< 0.05) between the groups fed 0 and 50 mg vitamin C kg 1 diets but no significant difference (p>0.05) between the groups fed diets with 100, 150, 200 and 250 mg vitamin C kg 1 diet on this parameter. Mortality was significantly (p< 0.05) higher in the groups fed diet devoid of vitamin C while there was no significant difference (p >0.05) between the fish fed the diets with the graded levels of vitamin C. The Thiobarbituric Acid Reactive Substance (TBARS) of the liver and whole body of fish was significantly (p< 0.05) higher in fish fed diet devoid of vitamin C. Cost per kilogram of fish base on feed input was significantly (p< 0.05) higher in the group fed diet without vitamin C than those enriched with vitamin C. However within the groups enriched with vitamin C cost per kg of fish was significantly (p< 0.05) decreasing in the following order: diet 2>diet 6>diets 4, 5 and 3. There was no significant difference (p>0.05) between fish fed diets with 100, 150 and 200 mg vitamin C kg 1 with respect to cost per kilogram of fish. The results of this study suggest that there is no alternative to the use of a complete diet with vitamin C in a sustainable intensive practical farming of H. longifilis.
 
 
 
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