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Articles by O.O. Ojebiyi
Total Records ( 6 ) for O.O. Ojebiyi
  Offiong, S.A. , F.U. Ekpo , O.L.Obasi and O.O. Ojebiyi
  Fifty 70 week old brown egg layers were randomly distributed into 5 groups each of 2 replicates of 5 birds each and subjected to some modalities of nutritional deprivation to evaluate the efficacy of such feeding manipulations, to induce moult, and their effect on post moult production and some quality parameters of such eggs. The feeding regimens consisted of feed and water deprivation (FWD), feed deprivation (FD), water deprivation (WD) and feeding zinc in a wheat offal diet. Result revealed that FD treatment before returning the birds to full feeding, was the most effective in inducing moult, followed by the zinc treatment. FWD and WD treatments showed lower degrees of moulting effectiveness, with the WD treatment being the least effective. The moult feeding treatments caused the birds to loose their pretreatment body weights. WD caused the highest body weight loss of 19.35%, followed by zinc and the FD treatments, which caused 16.88 and 15.88% body weight loss respectively. FD treatment caused the highest percentage body weight recovery (BWR) at 1st egg post moult and made the highest body weight gain at 6 weeks, while the zinc group lost body weight at 6 weeks post moult. WD and FWD groups resumed egg production on 17th and 18th days respectively post the moult feeding treatments, while the zinc and FD groups resumed production on the 19th and 21st days respectively. FD group was the first to reach 50% production and had the highest total egg production post moult, while zinc, FWD and WD groups reached 50% production on the 3rd, 4th, and 6th days respectively post moult. Overall, it was concluded that depriving layers of feed, as in this experiment, before returning them to full ad libitum feeding, proved the most effective in inducing moult, increasing egg production post moult, improving egg weight and post moult body weight at 6 weeks compared with the other treatments in the experiment. However, in terms of egg haugh unit value, it was not as good as the birds previously deprived of water before returning them to feed and water ad libitum, as applied in this experiment.
  I.A. Emiola , O.O. Ojebiyi , R.A. Hamzat , T.A. Rafiu , G. Ogunwuyi and A. Lawal
  One hundred and forty-four (144) day old Anak 2000 broiler chicks were used to investigate the growth response as well as organ characteristics of broiler chickens fed graded levels of kola pod husk meal (KPHM). The birds were randomly allotted to four dietary treatments groups containing 0%, 10%, 20% and 30% KPHM. There were two replicates per treatments with 18 birds per replicate in a completely randomized design. The birds placed on control diet utilized their feed more efficiently (P< 0.05) than other treatments. The broilers fed 10% and 20% KPHM were able to convert the diet more efficiently (P< 0.05) than the broilers on 30% KPHM. Treatment effects on weight gain, feed: gain ratio, dressed weight, length of small intestine, length of colon, length of caecum, weights of kidney and lung were significantly (P< 0.05) different. Growth rate decreased significantly (P< 0.05) with increasing level of KPHM in the diet. However, no significant (P>0.05) difference was observed in protein efficiency ratio, nitrogen retention, dry matter digestibility and crude fibre digestibility of the birds fed different diets. It could be concluded that KPHM inclusion in broiler diet up to 10% dietary level will adversely affect the performance of broilers.
  L.O. Ojedapo , T.A. Adedeji , T.B. Olayeni , O.S. Adedeji , A.R. Abdullah and O.O. Ojebiyi
  Body weight and body linear measurement (Diagonal body length, Height-at-withers, sac pelvic width, Heart girth) of 259 West African Dwarf (WAD) goats (both sexes) in three age groups (Kid, yearling and Adult) were measured. The least square means for body weight were 6.40, 10.5 and 18.9 kg for kid, yearling and Adult respectively. Means of other body linear measurements also vary within each age group. The variables measured vary positively with age of the animals and the correlations of body weight with diagonal body length, Height at whither, sac-pelvic width and heart girth were high, positive and significant (p<0.01). There is sexual dimorphism in body weight and other body linear measurements in favour of the female goats. The correlation matrix of each of the variable or combination could be used in predicting live weight of the animals.
  V.A.Togun , G.O. Farinu , O.O. Ojebiyi , J.A. Akinlade and O.B.Popoola
  Twenty-four cross bred male weaner rabbits of between 5-8 weeks, with mean weight of 804.67 g, were used in a feeding trial involving three levels 0,15 and 20% inclusion of Wild Sunflower Forage Meal (WSFM) in a complete randomized design study that lasted for 8 weeks. The rabbits were randomly divided into three dietary groups of 8 rabbits each. Each rabbit served as a replicate. The parameters measured were, feed intake, daily weight gain, feed: gain ratio, organ weights, carcass yield and tissue development. Rabbits with 20% WSFM inclusion in their diet recorded significant (p<0.05) lower values in daily feed intake and weight gain than both the control and 15% inclusion group. Values recorded for all the groups however did not significantly (p>0.05) differ in organ weights, organ yield and tissue development. It was concluded that WSFM can be included in the weaner rabbit diet up to 15% level without any deleterious effect on growth performance.
  O.O. Ojebiyi , G.O. Farinu , G.M. Babatunde and O.O. Morohunfolu
  Twenty crossbred rabbit of mixed breeds with average initial weights of between 823.7518.52 and 865.2519.46 g were used in a feeding that trial lasting for 8 weeks to evaluate the effect of feeding sun-dried cassava peel-blood meal mixture (SDCP/BM) based diet in a ratio of 3:2. The rabbits were randomly assigned to five treatments of four rabbits each in a completely randomized design experiment. The SDCP/BM mixture was included at 0, 5, 10, 15 and 20% levels. Performance characteristics evaluated included daily feed intake, weight gain, feed: gain ratio and some internal organs characteristics. The results showed that the performance characteristics of rabbits fed varying inclusion levels of SDCP/BM mixture compared favourably well (p>0.05) with the control diet. It was concluded that SDCP/BM mixture in the ratio of 3:2 can be included in the diets of rabbits up to 20% level.
  S.A Offiong , O.O. Ojebiyi , E.O. Moses , B.I. Umoh and E.E.A. Offiong
  Twenty-five freshly laid eggs were collected weekly from each of exotic commercial and local chicken flocks designated (E) and (L), respectively. These made a total of 125 eggs each over a period of 5 weeks for the experiment and were analyzed for morphometric characteristics. The mean egg weight values, shell weight and shell thickness of the exotic layer eggs significantly differed from those of the local chicken eggs (p<0.05). The haugh unit value was also significantly higher in the exotic layer eggs but the albumen index of eggs of the chicken genotypes did not differ (p>0.05). However, mean yolk weight was higher (p<0.05) in the local chicken eggs. There was high correlation (p<0.05) between shell thickness and specific gravity in the exotic chicken eggs. This was negative in the local chicken eggs. There was no correlation between shell thickness and yolk weight of the local eggs. Eggs of both chicken genotypes exhibited positive correlation in respect of yolk weight and egg weight values. Eggs of the exotic commercial layers were superior in all the parameters measures except in yolk weight, which may be partly genetic and partly environmental. However, as eggs, the composition of both egg types and their biological value were not considered to differ as to give one or other any nutritional superiority, although differences existed in the morphometric characteristics.
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