Papers by Matthew Olugbenga Oyeyemi
African Journal of Biomedical Research, Dec 31, 2000
A case report of true double cervix in a five-year-old white Fulani cow is presented. The conditi... more A case report of true double cervix in a five-year-old white Fulani cow is presented. The condition is known to cause infertility which might be the reason why the cow was brought to the slaughterhouse at this critical age.
Effect of acute and chronic administration of the methanol extract of the root of Cnetis ferrugniea on the haematological and some biochemical profiles of male rats
Effect of successive ejaculation on the spermiogram of West African Dwarf Goats
Israel Journal of Veterinary Medicine, 2001
Journal of Science and Technology (Zambia), 2005
The effects of parity and plane of nutrition on mass during gestation and the post-partum periods... more The effects of parity and plane of nutrition on mass during gestation and the post-partum periods were studied in 36 adult West African Dwarf (WAD) goats assigned to three planes of nutrition for a period of 2 years. There was general mass gain in all the groups during gestation. Mass gain in high supplemented group (A) was significantly superior (P<0.05) to the gain in unsupplemented group (C), but not in medium supplemented group (B). Similarly, mass losses occurred in all groups post-partum. The mass losses were not significantly different between the groups. Mass changes in the does were not influenced by litter types. Dams giving birth to only singleton gained 4.4 ± 0.55 kg during gestation. The corresponding value for twin-bearing does was 6.13 ± 0.80 kg. Pre-partum mass gains were positively correlated with pre-weaning mass losses in all groups. However, significant differences (P<0.05) were observed in groups A and B, but not in group C. Parity had no significant effect within groups A and B, but does (dams) in group A significantly gained more mass (P<0.02) than groups B and C. There was a progressive mass increase with advancing pregnancy in all the groups. Group A does had significantly higher daily mass gain than group C during 1-140 days (P<0.05), 50-140 days (P<0.05) of pregnancy. It was concluded that nutrition and parity significantly affected the mass changes during gestation and the post partum period.
Response of Primiparous Uda Ewe to Concentrate Supplementation
Bulletin of animal health and production in Africa, 2013
The reproductive potential of male catfish treated with gel extract of Aloe vera plant was studie... more The reproductive potential of male catfish treated with gel extract of Aloe vera plant was studied using twelve male fish weighing 500-560g.The fish were divided into 3 groups; A, B and C with four fish in each group. Group A was treated with 2% Aloe vera gel while group B was treated with 3% and Group C the control was treated with distil water. Blood and semen samples were collected for analysis and histology of the testis was done. Spermiogram revealed that as the concentration of the gel increased, the motility and sperm count decreased. Although the decrease in sperm motility was significant (p<0.05), the decrease in the sperm count was not significant (p>0.05) across the groups. Percentage liveability of sperm cells was significantly lower (p<0.05) in treated groups than control. The control group had higher semen volume, this volume was however not significantly different (p>0.05) from other treatments. Morphological studies showed that group B (3% group) had a si...
Gestation length and birth parameters of West African Dwarf Does fed with different planes of nutrition
Testicular parameters and histological changes in thermally damaged testes and epididymides of West African Dwarf bucks treated with Proviron
Tropical veterinarian, 2009
Journal of Veterinary Medicine and Animal Health, May 31, 2015
The effect of age, weight and scrotal circumference on the testicular and epididymal parameters w... more The effect of age, weight and scrotal circumference on the testicular and epididymal parameters was studied in the Red Sokoto bucks. Thirty-six testes from Red Sokoto bucks were used for this study. The animal's age, weight, and scrotal circumference were determined and correlated with testicular weight, testicular diameter, testicular length, epididymal length, gonadal and extra-gonadal sperm motility and viability. All parameters were correlated positively and negatively at various instances of p < 0.01 and p < 0.05. The sperm morphological abnormalities showed that tailless head (primary abnormality), headless tail (secondary abnormality), bent tail (secondary abnormality), curved tail (secondary abnormality), bent mid-piece (tertiary abnormality) and curved mid-piece (secondary abnormality), total sperm abnormalities and total cell count were found to be significant at p < 0.01. It was concluded that the age, weight and scrotal circumference of Red Sokoto buck were positively correlated to its testicular and epididymal parameters and therefore are potentially useful in the evaluation of the breeding soundness of the bucks.
Nigerian Journal of Physiological Sciences
Corchorus olitorius is a vegetable plant/shrub and the leaves are very nutritious and rich in vit... more Corchorus olitorius is a vegetable plant/shrub and the leaves are very nutritious and rich in vitamins, minerals and dietary fibers. The study was carried out to identify the effects two extracts of this plant on the reproductive indices of male Wistar rats Forty-five adult male rats of about 12 weeks old, each weighing about 120g were used for this study, kept in a cage and fed with commercial rat pellets and water was given at ad-libitum. They were randomly divided into groups A, B and C of 15 rats per group. 250mg/kg of the leaf extract was administered orogastrically using once daily for 21 days. Group A and B were treated with methanol and aqueous leaves of Corchorus extract respectively and Group C was given distilled water and served as the control. The weekly sacrifice of five rats per group was done following treatments. In this study, it was observed at the first-week post -treatment that there was significant (p≤0.05) decrease in the PCV and haemoglobin values of group A ...
Nigerian Journal of Animal Production, 2021
During an eight-year-study involving 242 kids born between 1993-2000, kid mortality for kids up t... more During an eight-year-study involving 242 kids born between 1993-2000, kid mortality for kids up to / year old was 47.52%. Irrespective of the age group, mortality was generally very high in young kids. The patterns of deaths were as follows: 29.57% before 3 months; 26.96% between 3 and 6 months, 12.17% between 6 and 9 months while 31.30% died between 9 and 12 months of age. Mortality rate for the 6-9 months period was significantly lower (P<0.05) than at other periods. The causes of kids' mortality were bad mothering abilities, malnutrition and disease. Pneumonia (37.39%) and pneumoenteritis (34.78%) were the major causes of death during the first year of life It was found out that kid with birth weight below 1.0kg and twins died before weaning. The introduction of new goat is a source of infectious disease especially PPR in the herd/flock. Also observed, as source is the introduction of new goats at age group 9-12 month. It is recommended that disease prevention, good manage...
Veterinarski Arhiv, Aug 20, 2000
Twenty healthy adult male (bucks) West African dwarf goats (WADG) aged between 2 to 4 years and w... more Twenty healthy adult male (bucks) West African dwarf goats (WADG) aged between 2 to 4 years and with a mass of from 16 to 20 kg were used in this study. They were randomly assigned into four groups of five bucks per group. In group A, semen was collected once a week for a period of eight weeks, while in group B semen was collected twice a week for a period of eight weeks, once a day for 21 days in group C, and twice daily at an interval of five hours for 21 days in group D. Live body masses, height at withers, scrotal length and scrotal circumference were not affected by successive ejaculations. The ejaculate volume decreased as the frequency of ejaculations increased, although the decrease was not significant (Group A 0.44±0.07, B 0.41±0.08, C 0.38±0.07 and D 0.36±0.08 ml) while the ejaculate colour was either milky or creamy. Mass sperm movement showed swirling waves and scored 4 in all groups, while the percentage progressive motility ranged between 88.7±3.10 and 94.54±3.00%. Percentage of live spermatozoa (Group A 96.57±2.40, B 96.24±2.53, C 96.10±2.28 and D 96.10±2.50%) was not affected by successive ejaculations although a decrease in sperm concentration was observed as the number of successive ejaculations increased. There was a significant increase (P<0.05) in abnormal spermatozoa as frequency of ejaculation increased.
RAFEL: a SASE Experiment with Feedback
ABSTRACT
Nigerian Journal of Animal Production, 2021
During an eight-year-study involving 242 kids born between 1993-2000, kid mortality for kids up t... more During an eight-year-study involving 242 kids born between 1993-2000, kid mortality for kids up to / year old was 47.52%. Irrespective of the age group, mortality was generally very high in young kids. The patterns of deaths were as follows: 29.57% before 3 months; 26.96% between 3 and 6 months, 12.17% between 6 and 9 months while 31.30% died between 9 and 12 months of age. Mortality rate for the 6-9 months period was significantly lower (P<0.05) than at other periods. The causes of kids' mortality were bad mothering abilities, malnutrition and disease. Pneumonia (37.39%) and pneumoenteritis (34.78%) were the major causes of death during the first year of life It was found out that kid with birth weight below 1.0kg and twins died before weaning. The introduction of new goat is a source of infectious disease especially PPR in the herd/flock. Also observed, as source is the introduction of new goats at age group 9-12 month. It is recommended that disease prevention, good manage...
Veterinarski Arhiv, Aug 20, 2000
Twenty healthy adult male (bucks) West African dwarf goats (WADG) aged between 2 to 4 years and w... more Twenty healthy adult male (bucks) West African dwarf goats (WADG) aged between 2 to 4 years and with a mass of from 16 to 20 kg were used in this study. They were randomly assigned into four groups of five bucks per group. In group A, semen was collected once a week for a period of eight weeks, while in group B semen was collected twice a week for a period of eight weeks, once a day for 21 days in group C, and twice daily at an interval of five hours for 21 days in group D. Live body masses, height at withers, scrotal length and scrotal circumference were not affected by successive ejaculations. The ejaculate volume decreased as the frequency of ejaculations increased, although the decrease was not significant (Group A 0.44±0.07, B 0.41±0.08, C 0.38±0.07 and D 0.36±0.08 ml) while the ejaculate colour was either milky or creamy. Mass sperm movement showed swirling waves and scored 4 in all groups, while the percentage progressive motility ranged between 88.7±3.10 and 94.54±3.00%. Percentage of live spermatozoa (Group A 96.57±2.40, B 96.24±2.53, C 96.10±2.28 and D 96.10±2.50%) was not affected by successive ejaculations although a decrease in sperm concentration was observed as the number of successive ejaculations increased. There was a significant increase (P<0.05) in abnormal spermatozoa as frequency of ejaculation increased.
Effects of the leaf decoction of Momordica charantia (bitter melon) on Mitochondrial Membrane Permeability Transition Pore (MMPTP) and fertility in normal male albino rats
African journal of medicine and medical sciences, 2010
Momordica charantia (M. charantia), a medicinal plant of the family, Cucurbitaceae, is used in tr... more Momordica charantia (M. charantia), a medicinal plant of the family, Cucurbitaceae, is used in treating an array of ailments including diabetes, heamorrhoids, fevers and various cancers. Programmed cell death may be modulated by an intrinsic pathway involving the release of cytochrome C when the mitochondrial membrane permeability transition (MMPTP) pore is opened. Opening of MMPT pore was assayed using the method of Lapidus and Sokolove. The results obtained revealed that there was a dose-dependent and significant increase in the opening of the MMPT pore in rats orally administered the decoction with maximum induction (11-fold increase) at 55mg/100g body weight (bw), although the extent of opening of the pore was reduced at 65mg/100g bw (9-fold increase). An assessment of the blood parameters of animals orally exposed to the decoction showed significant decrease (p<0.05) in lymphocytes and a significant increase (p<0.05) in neutrophils at 55mg/ 100g bw. Moreover, significant ...
Effects of the leaf decoction of Momordica charantia (bitter melon) on Mitochondrial Membrane Permeability Transition Pore (MMPTP) and fertility in normal male albino rats
African journal of medicine and medical sciences, 2010
Momordica charantia (M. charantia), a medicinal plant of the family, Cucurbitaceae, is used in tr... more Momordica charantia (M. charantia), a medicinal plant of the family, Cucurbitaceae, is used in treating an array of ailments including diabetes, heamorrhoids, fevers and various cancers. Programmed cell death may be modulated by an intrinsic pathway involving the release of cytochrome C when the mitochondrial membrane permeability transition (MMPTP) pore is opened. Opening of MMPT pore was assayed using the method of Lapidus and Sokolove. The results obtained revealed that there was a dose-dependent and significant increase in the opening of the MMPT pore in rats orally administered the decoction with maximum induction (11-fold increase) at 55mg/100g body weight (bw), although the extent of opening of the pore was reduced at 65mg/100g bw (9-fold increase). An assessment of the blood parameters of animals orally exposed to the decoction showed significant decrease (p<0.05) in lymphocytes and a significant increase (p<0.05) in neutrophils at 55mg/ 100g bw. Moreover, significant ...
Comparative Study of the Haematology and Serum Biochemistry of Male Wistar Rats Treated with Chloroquine and Artesunate
Journal of Physiology and Pharmacology Advances, 2014
The comparative effect of Chloroquine and Artesunate; two drugs commonly used in the prophylaxis ... more The comparative effect of Chloroquine and Artesunate; two drugs commonly used in the prophylaxis and chemotherapy of malaria on the haematology and serum biochemistry of male wistar rats was studied. The rats (n=15) weighing between 150-220g were divided equally into 3 groups; A, B and C. Group A served as control, B received chloroquine at 20mg/kg body weight for 3 days while C received Artesunate at 4mg/kg body weight on the first day followed by 2mg/kg body weight thereafter for six consecutive days. Hematological and selected serum biochemical parameters were assessed. Varying degrees of derangements were noticed in the experimental groups. The haematology findings reveal that there was intravascular haemolysis, leucocytosis with significant (p<0.05) decrease in neutrophils in both groups. The serology reveals an increased serum creatinine level which was significantly (p<0.05) higher in chloroquine treated rats. Alanine Aminotransferase (ALT) and Aspartate Aminotransferase (AST) levels in both groups were elevated. The drugs therefore have varying grades of cytotoxicity to RBC, bone marrow depressing effect, hepatotoxicity and nephrotoxicity. It is therefore recommended that these chemical agents despite their long existence in the treatment of malaria should be used with caution as indiscriminate use and/or overdose have deleterious side effects.
Small Ruminant Research, 1998
Eighteen healthy West African Dwarf goats 1.7AE0.3 years old and weighing 16.5AE3.3 kg were assig... more Eighteen healthy West African Dwarf goats 1.7AE0.3 years old and weighing 16.5AE3.3 kg were assigned randomly to six successive replicates for the following treatments: Intact testis (control); left testis orchidectomy and right testis orchidectomy. All orchidectomies were performed after two weeks of quarantine and performance on the bucks was studied. In the control intact bucks, an ejaculate volume of 0.4AE0.04 ml, sperm concentration of 2.7AE0.2Â10 9 sperm/ml, sperm motility of 68.3AE3.0%, testicular circumference of 9.5AE0.5 cm, testicular weight 31.8AE4.9 g and percentage live sperm of 91.3AE2.5% were recorded. In the hemi-orchidectomized goats, the ejaculate characteristics of left orchidectomy, the sperm motility was signi®cantly (P<0.01) higher than in control bucks. Testicular circumference of left testis orchidectomy did not differ signi®cantly from that of the right testis orchidectomy, while being signi®cantly different (P<0.01) to those of the intact testis. The study showed that in the short term, hemi-orchidectomized bucks can be assessed for the suitability and evaluation of their testes for breeding purposes, using the parameters evaluated above.
Journal of Medicinal Plants Research, Feb 17, 2013
Aloe Vera (Av) gel with its multiple beneficial effects has also been associated with some side e... more Aloe Vera (Av) gel with its multiple beneficial effects has also been associated with some side effects. The gonadosomatic index of female Wistar rats treated with graded concentration of Av gel was investigated. Seventy two sexually mature female Wistar rats weighing 140 to 255 g and 16 to 20 weeks of age were randomly grouped into four. The group A (control) rats were given distilled water while the treatment groups B, C and D were given 200, 300 and 400 mg/kg of the gel, respectively. Ovaries were collected from six rats randomly picked from each group after one, two and three weeks of gel administration. These were weighed and the gonadosomatic index was calculated. A concentrationdependent decrease (P < 0.05) in the gonadosomatic index of the treated groups which was also significantly different (P < 0.05) from one treatment group to the other as the concentration of gel administration increases were observed after each week of gel administration. It was concluded that the intake of Av gel up to 200 mg/kg for a period up to seven consecutive days causes a decrease in the ovarian mass characterized in the rat, and this may have consequences on the fecundity and fertility rate.
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Papers by Matthew Olugbenga Oyeyemi