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Articles by V.A. Togun
Total Records ( 5 ) for V.A. Togun
  O.A. Amao , I.O. Oladunjoye , V.A. Togun , K. Olubajo and O. Oyaniyi
  Two hundred and fifty Isa-Brown point of lay chicken of 30 weeks of age were used to determine the effect of substituting westwood (Cirina forda) larva meal (WWLM) for fish meal which is the most expensive feed ingredient in layer diet on laying performance of chicken. The birds were fed five diets in which WWLM replaced 0, 25, 50, 75 and 100% fish meal. Data collected were feed intake, weight change, egg production, feed efficiency and egg quality characteristics Data were analyzed using one-way analysis of variance. Proximate analysis showed that WWLM contained higher crude protein, crude fibre, ether extract, dry matter and ash than fish meal. Feed intake and weight gain were not significantly (p<0.05) affected by diets. Hen day production of birds fed 0% WWLM (77.86%), 25% WWLM (78.32%), 50% WWLM (77.82%) and 75% WWLM (77.37%) were similar but higher (p<0.05) than that of those fed 100% WWLM (73.39%). Birds fed 0, 25, 50 and 75% WWLM were also comparable in terms of egg weight and efficiency of feed utilization while those fed 100%WWLM were inferior with respect to these parameters. Egg shell thickness, yolk colour and Haugh unit were not significantly different among treatments. It was concluded that WWLM can replace up to 75% fish meal in the diet of laying chicken.
  A.O. Afolabi , V.O. Mabayoje , V.A. Togun , A.S. Oyadeyi and Y. Raji
  The study was designed to compare the relative performance of students admitted into the Medical Programme through Pre-degree Science with those of students admitted through the Joint Admissions and Matriculation Board (JAMB). The performance indices used were the University 100 level Cumulative Grade Point Average (CGPA) and Physiology examination score during the 200 level Comprehensive Examination. The files of students admitted into the Medical Programme in 1998/1999, 1999/2000 and 2000/2001 Sessions were obtained from the Faculty of Basic Medical Sciences. The following data were extracted from each file-age, sex, school certificate result, mode of entry (JAMB, Pre-degree, Direct at 100 level or transfer at 200 level), 100 level CGPA and Physiology score in the 200 level Comprehensive examinations. The study showed that the students admitted through JAMB performed better in 200 level Physiology examinations but there was no correlation between the University Matriculation Examination (UME) Scores and the O-Level aggregate, 100 level CGPA and 200 level Physiology results. The Pre-degree examination score however showed a strong positive correlation with the O-Level aggregate, 100 level CGPA and the 200 level Physiology examination scores. It is therefore recommended that the Pre-degree examination results be used in admitting students into Medicine, as it is a more reliable predictor of success in Medical School Examinations.
  V.A. Togun
  The study investigated live weight related changes in testicular histomorphmery of White Fulani (WF) bulls of live weight range 171-320 kg under the traditional extensive system of management in Ibadan, Nigeria. Fifty-two WF bulls were randomly selected from local Fulani herds around Ibadan and placed in Giant Star grass paddocks with water available free choice for one week prior to slaughter. Morhpometric measurements were taken on the scrotum before and on the testes immediately after slaughter. Histometric measurements were taken on the testicular parenchyma tissue after histological processes. From their weight at slaughter, the bulls were grouped into four live weight groups of 171-200, 201-230, 231-260 and 261-320 kg for group I, II, III and IV, respectively. Mean values of group IV bulls were significantly (p<0.05) higher in all scrotal and testicular morphometric measurements than all other groups, which did not differ significantly (p>0.05) from one another. The gonadal index (relative weight of testes to live weight) did not differ (p>0.05) between groups except that group IV value was significantly (p<0.05) higher than all other groups. The relative proportion of paired epididymal weight to live weight did not differ between groups, while the relative proportion of tunica albuginea to the testes weight decreased insignificantly from group I to IV. The seminiferous tubule diameter did not significantly (p>0.05) differ between groups, while the stages in the cycle of the seminiferous epithelium also appeared stable between the different live weight groups. The volume proportion of the lumen in the semiferuos epithelium was significantly higher in group I bulls than group IV bulls while none of the testicular elements differed significantly (p>0.05) between groups in volume proportions. However, absolute weights of all the testicular elements were significantly higher in the group IV bulls than all the other groups, which did not differ significantly (p>0.05) from one another. It was concluded that the live weight range 171-320 kg corresponds to a physiologically stable state in White Fulani bulls extensively managed in Ibadan, a humid tropical environment in Nigeria.
  O.A. Amao , V.A. Togun , R.O. Afolabi , D.O. Adejumo , I.O. Oladunjoye , O.O. Adenekan and C.O. Olaniyi
  A fifty-six (56) days feeding trial was conducted in a completely randomized design to determine the haematological and serum biochemical characteristics of Hacco cocks fed Cocoabean Shell (CBS) supplemented with vitamin E and beta-glucan. Forty (40) cockerels (aged twenty-five weeks) were used. Treatment diets comprised T1 (control) (i.e. 0% CBS); T2 (20% CBS); T3 (20% CBS + Vitamin E) and T4 (20% CBS + Beta-glucan). The haematological parameters determined were Packed Cell Volume (PCV), haemoglobin concentration (Hb), Red Blood Cell Count (RBC) and White Blood Cell Count (WBC). Others included the WBC differential counts-polymorphs, lymphocytes, monocytes and eosinophils. The serum biochemical parameters determined were serum enzyme activities namely Spartate Amino Transferase (AST), Alanine Amino Trasferase (ALT) and alkaline phosphatase. Other parameters were total protein albumin, globulin and cholesterol. Treatment had significant (p<0.05) effect on PCV, RBC, WBC and polymorphs, while Hb, lymphocytes, monocytes and eosinophils were not significantly (p>0.05) affected by the treatment. Cocks that were fed CBS and CBS + Beta-glucan had similar PCV, RBC and WBC and polymorphs with the control group, while those that were fed CBS + vitamin E had lower values for PCV, RBC and polymorphs than the control group. The groups fed CBS + vitamin E had higher (p<0.05) WBC values than other groups. All the serum parameters determined were not significantly affected by dietary treatment. It was concluded that 20% CBS in diets of cocks did not show adverse effect on the blood parameters of the cocks. When supplemented with β-glucan, there was no adverse effect either. However, when supplemented with vitamin E, some haematological parameters were adversely affected.
  O.A. Amao , D.O. Adejumo , V.A. Togun , B.S.A. Oseni and E.B. Fagbayila
  An investigation was conducted in a 2 x 4 factorial experiment to evaluate the effect of Cottonseed Cake (CSC) with or without vitamin-E supplementation on the haematological parameters of pre-pubertal rabbit bucks. The experiment involved 8 treatment combinations comprising four CSC levels (0, 5, 10 and 15%) and two vitamin-E supplementation levels (0 and 30 mg/kg diet) denoted as minus (-) vitamin-E and plus (+) vitamin-E. A feeding trial lasted for eight weeks after which blood was collected from the animals and analyzed for Haemoglobin concentration (Hb), Packed Cell Volume (PCV), Red Blood Cell Count (RBC) and White Blood Cell Count (WBC). Analysis of variance showed that CSC had significant (p<0.05) depressing effect on Hb, while WBC values increased (p<0.05) with increasing level of CSC. The PCV and RBC were not significantly affected by CSC. Vitamin-E supplementation did not have significant (p>0.05) effect on the haematological parameters of the rabbit bucks. Interaction effect of CSC and vitamin-E did not affect (p>0.05) HB, PCV and RBC while only WBC was significantly (p<0.05) affected by the interaction effect. It was concluded that CSC had adverse effect on some haematological parameters and that vitamin-E showed a tendency to correct the adverse effect. Probably a higher dose of vitamin-E is required to elicit a greater ameliorative affect.
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