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Articles by O.A. Sokunbi
Total Records ( 2 ) for O.A. Sokunbi
  A.O. Ladokun , A. Yakubu , J.R. Otite , J.N. Omeje , O.A. Sokunbi and E. Onyeji
  Haematological and serum biochemical indices of Nigerian indigenous chickens of two genetic groups were evaluated. One hundred and twenty (120) cocks with average weight of 1.10kg, corresponding to sixty (60) naked neck (NaNa) and sixty (60) normally feathered (nana) were utilized in the study. On the basis of feather colour, the normal plumage cocks were subdivided into two equal phenotypic groups. Each genetic group was divided into four replicates of fifteen birds each in a completely randomized design. There were no significant (P>0.05) differences between the genotypes in the mean values of white blood cells(WBC), mean corpuscular volume(MCV), mean corpuscular haemoglobin concentration(MCHC). However, naked neck cocks were significantly superior in packed cell volume (PCV) haemoglobin (Hb) and red blood cells(RBC) compared with their normally feathered counterparts(41.00 vs 35.90%; 13.68 vs 11.60 g/dl; 4.84 vs 4.21x106/ml; p>0.05). With the exception of PCV which was significantly (p>0.05) higher in brown cocks than white coloured cocks (38.30 vs 33.50%), plumage colour had no significant effect on the variables estimated. No significant differences were observed in total protein, albumin, urea, glucose, cholesterol, serum alanine amino transaminase (SALT) and serum aspartate amino transferase (SAST) of the genetic groups. The normally feathered cocks, however had significantly (P<0.05) higher globulin content (1.53 vs 1.15 g/dl) and lower creatinine value (0.88 vs 0.95 mg/dl) compared to the naked neck cocks. Plumage colour did not significantly (P>0.05) affect serum biochemical parameters suggesting that the two colour variants might not be true representation of genetically distinct subpopulations. The present result on blood parameters of both naked neck and normally feathered cocks could serve as a baseline data, which could be exploited in the improvement of local stock.
  B.C. Majekodunmi , O.A. Ogunwole and O.A. Sokunbi
  The effect of supplementing drinking water with sodium chloride, sodium bicarbonate, calcium chloride and ascorbic acid on feed intake, weight gain, Feed Conversion Ratio (FCR), visceral and immunological organs of broilers reared under natural heat stress was undertaken. A total of 200 day-1 Arbor acre strain chickens were randomly divided into five treatments. Each treatment was in quadruplicate of ten chickens each. Treatment 1 (T1) was the control with water without any supplement while treatments T2, T3, T4 and T5 had their water supplemented with 0.5% ammonium chloride, sodium bicarbonate, calcium chloride and 300ppm ascorbic acid respectively. The design of the experiment was a completely randomized design. Birds given salts (T2, T3 and T4) had lower feed intake (721.5 g, 732.6 g and 730.30 g respectively) compared with their counterparts on Treatments 1 and 5 (735.30 g and 733.10 g respectively) Birds on T3 had significantly improved (p<0.05) weight gain (331.56 g) and lower FCR (2.22). The FCR generally decreased in birds given salts. The visceral and immunological organs were not significantly affected (p>0.05) by the treatment except birds on T4 which recorded significantly lower (p<0.05) relative weight of intestine (2.93%), higher weight of bursa of fabricus (0.19%). Conclusively, (0.5%) salts supplementation in water had positive effect on the performance of heat stressed broiler in this experiment.
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