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Articles by O.O. Oni
Total Records ( 8 ) for O.O. Oni
  F.O. Abeke , S.O. Ogundipe , A.A. Sekoni , I.A. Adeyinka , O.O. Oni , A. Abeke and I.I. Dafwang
  A study was conducted to determine the response of broiler starter and finisher chicks to dietary levels of Lablab purpureus beans processed by boiling in water for 30 min at 100 °C. For both the starter and the finisher phases, seven isonitrogenous diets containing 23.78% crude protein for the starter and 20.91% crude protein for the finisher were formulated to contain lablab seed meal at 0.0, 5.0, 10.0, 15.0, 20.0, 25.0 and 30.0% levels respectively. Diet 1, in each phase had no lablab and served as the control. Each dietary treatment for the starter and the finisher phases was replicated three times in a completely randomized design. There were 25 birds per replicate. Feed and water were given ad libitum. The experiment lasted from 0 to 4 weeks for the starter phase and from 5 to 8 weeks for the finisher phase. Results obtained for the starter phase shows significant (p<0.05) depression in final weight, weight gain, feed intake, feed efficiency and feed-gain ratio. These parameters decreased as the level of lablab seeds in the diets increased. However, feed cost (/kg feed and /bird) were significantly (p<0.05) reduced as the level of lablab seed meal increased in the starter diets. The results obtained for the finisher phase also showed a similar trend. While there were significant (p<0.05) decreases in final weight, weight gain, feed intake and feed efficiency as the level of lablab seed meal increased in the diets, feed cost (/kg feed and /bird) were significantly (p<0.05) lowered. Parameters measured for carcass analysis such as live weight and weights of the breast, thigh, wing, neck, legs and head showed a significant (p<0.05) decrease as the dietary levels of lablab seed meal increased. The PCV, Hb and the TP status of the blood indicated significant (p<0.05) decreases as the levels of lablab in the diets increased. However, Lablab purpureus beans can be included up to 5% level in broiler starter and up to 10% level in broiler finisher diets without any adverse effect on the performance of the birds.
  F.O. Abeke , S.O. Ogundipe , A.A. Sekoni , I.I. Dafwang , I.A. Adeyinka , O.O. Oni and A. Abeke
  This study was conducted to determine the response of laying hens to graded dietary levels of cooked Lablab purpureus beans. Six isonitrogenous diets with similar calorie levels were formulated to contain lablab seed meal at 0.0, 7.5, 15.0, 22.5, 30.0 and 37.5%, respectively. Diet 1, which contained no lablab, served as the control diet. It was a normal groundnut cake-maize based layers ration. Each treatment was replicated three times in a completely randomized design. There were 25 laying hens per replicate. Feed and water were provided ad libitum. The birds were managed under the deep litter system. The experiment lasted for 6 months. There was a significant (p>0.05) decrease in final weight, percent change in body weight, feed intake (g bird-1 day-1), feed efficiency, percent hen-day and hen-housed egg production, percent production at peak, average egg weight (g) and income above feed expenses (x) as the level of lablab beans in the diets increased but feed cost (x/12 eggs), age at 25, 50 and at peak egg production (days) and the Roche Yolk Colour Fan (RYCF) score increased significantly (p<0.05) as dietary level of lablab seeds increased. It was concluded that lablab seed meal can be fed up to 7.5% dietary level in layers ration without any significant (p>0.05) adverse effect on percent hen-day and hen-housed egg production.
  F.O. Abeke , S.O. Ogundipe , A.A. Sekoni , I.A. Adeyinka , O.O. Oni , A. Abeke and I.I. Dafwang
  This study was conducted to determine the effect of duration of cooking of Lablab purpureus beans on the performance, carcass characteristics and haematological profile of broiler finishers from 4-8 weeks of age. Seven isonitrogenous and isocaloric diets were formulated to contain 50% of Lablab beans boiled at 100OC for 0.0, 10.0, 20.0, 30.0, 40.0, 50.0 and 60.0 min, respectively together with a control diet which was a conventional groundnut cake-maize based broiler finisher diet. This amounted to a total of eight dietary treatments. Each treatment was replicated three times, in a complete randomized design. There were 25 broiler chicks (4 weeks old) per replicate. Feed and water were given ad libitum. The experiment lasted for four weeks. Results obtained show that increasing the duration of cooking of lablab seeds up to 30 min had significant (p<0.05) positive effect on final weight, weight gain, feed intake, feed efficiency and mortality rate. The performance of the birds became better as the duration of cooking increased up to 30 min. Beyond that, performance began to decline as the cooking time increased beyond 30 min. It was observed that birds fed the control diet performed significantly (p<0.05) better than all the lablab based diets.
  M. Orunmuyi , O.O. Oni , I.A. Adeyinka and O.E. Asiribo
  A study was conducted to determine the relationship between Plasma Alkaline Phosphatase (PAP) activity and reproductive traits in two strains of Rhode Island chickens. Mean enzyme activity in the cocks was 133.07 I.U for strain A and 134.78 I.U for strain B. Values of percentage fertile (PCF), percentage hatch (PCH) and percentage hatchability (PCHBLT) were 80.47, 45.68 and 53.41 in strain A, corresponding values in strain B were 85.94, 51.79 and 56.67. Heritability estimate was high for PAP in both strains (0.57) but low to moderate values were obtained for reproductive traits except percent fertility in strain A (0.56). Genetic correlations between PAP and PCF, PCH and PCHBLT were high and negative in strain A but low and positive values except PCHBLT were obtained in strain B. Phenotypic correlations between PAP and PCF, PCH and PCHBLT were generally low in magnitude but follow the direction of genetic correlations. The enzyme activity can be useful in the selection of the cocks for improved fertility and or hatchability of fertile eggs.
  F.O. Abeke , S.O. Ogundipe , A.A. Sekoni , I.I. Dafwang , I.A. Adeyinka , O.O. Oni , B.I. Nwagu and A. Abeke
  This study was conducted to determine the response of Shika Brown cockerels to graded levels of Lablab purpureus beans, processed by boiling in water for 30 min at 100°C. Six isonitrogenous diets with similar caloric levels were formulated to contain lablab seed meal at 0.0, 7.5, 15.0, 22.5, 30.0 and 37.5%, respectively. Diet 1, which had no lablab seeds and served, as the control, was a groundnut cake-maize based chick diet. Each diet served as a treatment and each treatment was replicated three times in a completely randomized design. There were 30 birds per replicate making a total of 540 birds for the study. Feed and water were provided ad libitum. The experiment lasted 8 weeks. The results obtained showed significant (p<0.05) negative responses of the cockerels to dietary levels of lablab. It was observed that there was a significant (p<0.05) decrease in final weight and weight gain as the level of lablab in the diet increased. Feed efficiency was observed to decrease significantly (p>0.05) as the level of lablab in the diet increased. Mortality was not however significantly (p>0.05) affected by feeding lablab in the diet of the cockerels. Feed cost (/bird) and total cost (/bird) were significantly reduced (p<0.05) as the dietary levels of lablab seed increased. Also organ weights and haematological parameters were not significantly (p>0.05) affected by feeding graded dietary levels of cooked Lablab purpureus beans in the diets of Shika brown cockerels.
  M. Kabir , O.O. Oni and G.N. Akpa
  Three hundred and sixty-one cocks from five hatches, one week apart, were used in this study. The birds which were made up of 203 birds from strain A (male line) and 158 birds from strain B (female line) were subjected to semen collection using the massage technique. The ejaculates were then subjected to both physical and chemical evaluations for semen quality analysis. The parameters considered were semen volume, semen colour, sperm progressive motility, sperm concentration, total sperm per ejaculate, concentration of live sperm and percent abnormal sperm. Results showed that the mean values for all the parameters lie within the acceptable range reported for normal cock semen. Moderate to high heritability estimates for most of the semen traits were also observed. The least square means (±SE) for semen volume, sperm progressive motility, sperm concentration, total sperm per ejaculate and concentration of live sperm cells obtained in this study were 0.42±0.02 ml, 73.46±2.04%, 1.47±0.15x109/ml, 64.15±5.67x109/ml and 86.45±2.63%. The heritability estimates obtained were 0.55±0.03 for semen colour, 0.45±0.08 for semen volume, 0.83±0.04 for sperm progressive motility, 0.52±0.06 for sperm concentration, 0.33±0.02 for total sperm count, 0.46±0.03 for concentration of live sperm cells respectively. High and positive genetic correlations between Osborne Selection Index and semen volume, semen colour, sperm concentration as well as with concentration of live spermatozoa were also obtained. The lowest value (0.008±0.010) of phenotypic correlation obtained was for total sperm per ejaculate and the highest value (0.066±0.027) was for semen volume. Therefore the genetic correlation between Osborne Selection Index and most semen traits were positive, hence, selection of males on the index values, currently been practiced in NAPRI, will not bring about any deterioration in semen quality. On the other hand, due to significantly negative genetic correlation between Osborne index and abnormal sperms, it will indirectly improve the semen quality of both lines which in turn may yield better fertility in the Rhode Island flock.
  I.A. Adeyinka , O.O. Oni , A. Abeke , I.I. Dafwang , A.A Sekoni , S.O. Ogundipe and F.O. Abeke
  Abstract: The lablab seeds were cooked for 30 min, sundried for three days and thereafter milled and incorporated into chickens’ diets. Six treatments, comprising of six dietary levels of lablab at 0.0, 7.5, 15.0, 22.5, 30.0 and 37.5%, respectively was fed during the grower’ s phase. Results obtained for the growers phase indicate that final weight (g/bird), weight gain (g/bird) and feed cost (N kg- 1) decreased significantly (p<0.05) as the level of lablab increased in the diet. Feed intake (g/bird and g/bird/day) as well as feed cost (N/bird) and total cost (N/bird) also decreased significantly (p<0.05) as the level of lablab increased in the diet up to 22.5% inclusion level before increasing as the level of lablab in the diets continued to increase. The level of lablab in the diet had no effect on mortality throughout the experimental period. In addition haematological parameters such as Packed Cell Volume (PCV), Haemoglobin (Hb) and Total Protein (TP) were not significantly (p<0.05) affected by feeding diets containing graded levels of cooked lablab beans to pullets. Results obtained during the laying phase indicates that feeding lablab seed meal up to 22.5% in the diets at the growers stage had no significant adverse effect (p<0.05) on final weight, feed intake, feed efficiency, percent henday and henhoused egg production, percent production at peak, kilogramme feed per twelve eggs, feed cost per twelve eggs, Haugh Unit and yolk index. However, age of birds at first egg, age at 50% production and age at peak egg production were increased significantly (p>0.05) with increase in the level of lablab seed meal in the growers diets.
  M. Kabir , O.O. Oni , G.N. Akpa , I.A. Adeyinka and P.I. Rekwot
  Fifty Rhode Island chickens were randomly assigned to five treatments with ten cocks in each treatment. Group I cocks (full fed control) received 140 g of a 16% CP growers ration per cock per day. Cocks in Group II, III, IV and V received 98, 70, 42 and 28 g of the same ration per cock per day, representing 70, 50, 30 and 20% of Group I intake, respectively. The feeding trials lasted for 8 weeks during which one ejaculate per day was collected from each cock using the massage technique. The ejaculated semen samples were subjected to both physical and biochemical evaluations. Results showed that cocks that were severely underfed (i.e., Groups IV and V) took significantly longer time (p<0.01) to ejaculate. In addition, ejaculation failures were encountered more frequently with the severely underfed cocks than in cocks that were moderately underfed (i.e., Groups II and III). There were however, no significant differences in most of the biochemical parameters between cocks I all the treatment groups. Ejaculate volume, progressive sperm motility and sperm concentration were significantly depressed (p<0.01) in the severely underfed cocks than in the moderately underfed cocks. Thus, this study revealed that providing Rhode Island red and white cocks with one-half to three-quarter (i.e., 50-70%) of their normal daily ration would neither undermine their semen producing ability nor affect their semen quality adversely.
 
 
 
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