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Articles by V.A. Togun
Total Records ( 4 ) for V.A. Togun
  Olayeni, T.B. , G.O. Farinu , V.A. Togun , O.S. Adedeji and A.O. Aderinola
  A feeding trial lasting 49 days was conducted using 16 weaner pigs of mixed breeds (Large White x Landrace) with initial average weights of between 8.13±0.80 kg and 8.25±0.85 kg to determine the effects of different levels of wild sunflower (Tithonia diversifolia Hemsl. A Gray) leaf meal on their growth, haematology and organ characteristics. The animals were randomly assigned to four dietary treatments using Complete Randomized Design (CRD). There were four individually penned animals per treatment. The Wild Sunflower Leaf Meal (WSLM) was included at 0, 10, 15 and 20% levels. Feed and water were offered ad-libitum. Records of growth performance, blood parameters and organ characteristics were taken. The values of average final weight, daily weight gain, daily feed intake and feed gain ratio were not significantly influenced (p>0.05) by the dietary treatments. Significant differences were not indicated (p>0.05) in haemoglobin, packed cell volume, red blood cells, mean corpuscular haemoglobin, mean corpuscular volume and mean corpuscular haemoglobin concentration. However, platelets, white blood cells, neutrophils and lymphocytes were significantly influenced (p<0.05). Kidney weight significantly increased (p<0.05) as levels of WSLM increased while heart, liver and spleen weights were not different significantly (p>0.05). It is evident that WSLM can be incorporated into the diet of weaner pigs at 200 g/kg
  O.A. Amao , V.A. Togun , A.F. Akindele , I.O. Oladunjoye and G.O. Tona
  Three hundred (300) 8-weeks old cockerels were used in a 5x2 factorial experiment to determine the effect of cottonseed cake and clomiphene citrate administration on some reproductive characteristics of the cockerels. They were randomly allocated to ten treatments of 30 birds per treatment and replicated into 3, each replicate containing 10 birds. Treatments contained cottonseed cake (CSC) meal at 0, 25, 50, 75 and 100% replacement levels for groundnut cake which were either supplemented with clomiphene citrate or not. Treatments 1 to 5 (D1, D2, D3, D4 and D5) were not supplemented with clomiphene, while treatments 6 to 10 which had the same inclusion levels of CSC (D6, D7, D8, D9 and D10,) were supplemented with clomiphene citrate. Results showed that treatment had significant (p<0.05) effect on testis weight, parenchyma weight and testis volume. Birds on treatments 2 and 7 (D2 and D7) with 25% CSC had similar testis weight and testis volume with those on the control diet (D1). However, they had significantly (p<0.05) higher values for these two parameters than those on other treatments. Degeneration and necrosis of germcells did not follow any definite pattern but varied in degree of severity. Severity of condition appeared to be higher for dietary treatments without clomiphene citrate administration than for those with clomiphene administration. It could be concluded that cottonseed cake could replace up to 25% of GNC in the diets of growing cocks when it is supplemented with clomiphene citrate administration.
  L.C. Saalu , V.A. Togun , A.O. Oyewopo and Y. Raji
  The study investigated the effect of melatonin on artificial crytorchidism in Sprague-Dawley rats. Forty rats weighing 220-270 g were divided into five treatment groups A, B, C, D and E with group A as control. The rats were rendered unilaterally (B and D) or bilaterally (C and E) cryptorchid by anchoring the upper pole of the testis to the abdominal wall. Groups D and E in addition received 0.7 mg kg-1 body weight of melatonin intraperitoneally between 9.00-10.00 am daily for 56 days. The control group gained 40% of their initial body weight while the mean weight losses of the cryptorchids were 27 and 23% (unilateral and bilateral without melatonin) and 45 and 39% (unilateral and bilateral with melatonin). Mean Paired Testes Weight (PTW) of control rats did not differ significantly (p>0.05) from those of groups B and D (unilateral cryptorchids with and without melatonin respectively) and E (bilateral cryptorchid with melatonin) but was significantly higher than the mean PTW of group C (bilateral cryptorchid without melatonin respectively). The ipsilateral testis without melatonin was lower in weight than the contralateral testis (B) while the weights were equal in melatonin treated rats (D). The mean PTW of bilateral cryptorchids with melatonin (E) was higher than the PTW of bilateral cryptorchids without melatonin. There was no sperm cell in the ipsilateral cauda epididymis of group B and the bilateral epididymides of group C rats that did not receive melatonin treatment (azoospermia). The epididymis of groups D and E rats, with melatonin administration had significantly (p<0.05) lower spermatozoa concentration (oligospermia) than the control rats. There was no significant (p>0.05) difference between epididymal sperm concentration and motility of the control rats compared with the contralateral testis of groups B and D rats. Motility of cryptorchid epididymal sperm was slow and non-linear. It was concluded that artificial cryptorchidism negatively affected metabolic activities in male Sprague Dawley rats. The contralateral testes of artificial, unilateral cryptorchids were not significantly (p>0.05) affected by the negative effect of artificial cryptochidism on the ipsilateral testes. Artificial cryptorchidism did not affect blood plasma testosterone level. Melatonin alleviated the deleterious effect of artificial cryptorchidism.
  Y. Raji , O.A. Osonuga , O.I Shittu , O.S. Akinsomisoye , V.A. Togun and Mistura O. Azeez
  A study of 542 randomly selected female students of the University of Ibadan and Ladoke Akintola University, Ogbomoso, both located in the southwestern Nigeria was carried out to determine the current menarcheal age and predicting factors influencing its onset. Mean age at menarche was found to be 13.66±1.82 years. 49.3% attained menarche between the ages of 13 and 14 years, 75.7% between 12 and 15 years, 8.1% at 16 while 6.1% had their first menstruation at age 11 years. There was a significant linear relationship (p = 0.004) between the age at menarche and body weight. The body surface area and height showed an insignificant inverse relationship with age at menarche. Socio-economic status of the parents had no influence on the age at menarche. Simple and multiple regression models for predicting age at menarche were derived from body weight, height and body surface area.
 
 
 
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