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Articles by S.I. Omeje
Total Records ( 5 ) for S.I. Omeje
  L. Bratte , I.A. Amata , S.I. Omeje and G.N. Egbunike
  In an investigation conducted to determine the effect of utilizing seeds of the African Pear (Dacryodes edulis G. Don, H.J. Lam) as a feed ingredient in the diets of broiler breeders on semen characteristics, 25 adult Anak Titan breeder cocks aged 20 weeks were randomly allotted to five dietary treatments of 5 cocks per treatment and fed diets in which Dacryodes edulis seed meal (DESM) replaced maize at 0% (control), 15, 30, 45 and 60% for 8 weeks. After 2 weeks of feeding the experimental diets, semen was collected twice weekly from the cocks by the lumbar massage technique. Semen colour or consistency scores were significantly lower for cocks which received the control and 15% DESM diets than for cocks on the 45 and 60% DESM diets. Mean semen volume was significantly (p<0.01) higher in cocks fed with 15, 30 and 45% DESM (0.33, 0.37 and 0.35 mL, respectively) than in those which received the control diet (0.21 mL) and in those fed 60% DESM (0.19 mL). Sperm concentration (x106 mL-1) generally increased significantly (p<0.01) as the level of DESM in the diet was increased. Negative but non-significant (p>0.05) correlations existed between body weight and sperm motility, semen pH, ejaculate volume, sperm concentration and percent live sperm while body weight bore a positive (but non-significant) correlation with percent abnormal sperm and a highly significant (p<0.01) positive correlation with semen consistency (0.99). It was concluded that DESM had no adverse effect on semen quality of broiler breeders even if it replaced as much 45-60% of dietary maize in broiler breeder diets.
  F.U.C. Mmereole , L. Bratte and S.I. Omeje
  An experiment was conducted to compare the effects of genotypes, seasons and genotype x season interactions on the laying mortality rates in the Nigerian local chickens (LC), the Barred Plymouth Rock (BR) and their F1 cross-progenies. The parent-stock was separated into four mating groups to produce four genotypes (G):- BR x BR (G1), LC x LC (G2) BR x LC (G3) and LC x BR (G4). The experiment was conducted during the dry and rainy seasons. Weekly mortality rates were computed for 24 weeks of lay. The data generated from the experiment were subjected to a 2 x 4 x 6 factorial analysis using S.A.S package. The results indicate that G2 and G3 with mortality rates (MR) of 1.91 and 3.28 respectively performed better than G1 and G4 with MR of 5.17 and 5.62 respectively. The results further indicate that experimental chickens performed better during the dry season (MR =3.08) than during the rainy season (MR=4.91). However, it was observed that the genotype x season interaction did not produce any significant effect on the mortality rates of the chickens. The results from this experiment underscore the need to improve the livability of the laying chickens by developing genotypes which are more tolerant with the local environment and the prevailing season. Based on the results, it was concluded that the mortality rates in the laying chicken can be reduced by crossing the exotic chicken with the local chicken and that a building system could be designed which can help reduce mortality rates during rainy seasons.
  I. Udeh and S.I. Omeje
  The objective of this study was to compare the growth and short term egg production of two exotic and the local chicken with those of their F1 inbred progenies in order to determine the effect of one generation of full sib mating on these traits. The two exotic chickens were H and N Brown Nick (strain 1) and Black Olympia (strain 2) while the local chicken was strain 3. The experimental birds were raised in deep litter pens from day old to 40 weeks of age. The coefficient of inbreeding of the three strains were as follows: strain 1 (10.80%), strain 2 (9.00%) and strain 3 (11.80%). Body weight, weight gain, age at first egg, age at peak egg production, egg weight, hen day rate and feed per dozen eggs were significantly (p<0.01) depressed in the two exotic (strains 1 and 2) but not in the local chicken except age at peak egg production. The parent consumed significantly (p<0.01) more feed to first egg compared with the inbred progeny of strain 1. The reverse was the case in strain 2. Total feed to first egg was similar in both generations of strain 3. The inbred progeny generation of the two exotic strains recorded more mortality compared with the parents. Both generations of strain 3 did not record any mortality during the laying period. It was concluded that generating replacement stock through inbreeding should be avoided in the exotic chicken but not in the local type.
  R.N. Nwambe , S.I. Omeje and J.O. Isikwenu
  Two hundred and twenty five (225) 28 day-old Anak broilers were randomly assigned to five treatment diets of 45 birds per treatment and replicated three times with 15 birds per replicate. Soyabean meal (full fat) was replaced with Potash Boiled Bambara Groundnut Meal (PBBGM) at 0, 25, 50, 70 and 100% levels. The diets were formulated to be isonitrogenous and isocaloric to provide 20% crude protein and 3000 kcal/kg metabolizable energy. At the end of the 4th week, one bird per replicate (3 birds per treatment) were randomly picked, fasted over night and slaughtered for carcass evaluation. The thighs of one bird per replicate were deboned and the tendons removed for organoleptic quality assessment. The results of the carcass characteristics indicated no significant differences (p>0.05) among the treatments for the weights of the various parts measured. On the cut-up parts, the percentage weights of the breast, back, drum-stick and thigh, showed significant differences (p<0.05) in all the treatment groups. There were significant differences (p<0.05) in the percentage weights of the spleen and gizzard; lengths of the proventriculus and the large intestine. The juiciness, flavour and overall acceptability of the broiler meat were not significantly (p>0.05) influenced by the treatments, thought the tenderness significantly (p<0.05) varied among the treatments.
  Bratte, L. , F.U.C. Mmereole , O.J. Akpodiete and S.I. Omeje
  In an investigation conducted to determine the nutrient composition of seeds of the African Pear (Dacryodes edulis G. Don, H.J.Lam) and their potential as a feed ingredient in non-ruminant nutrition, samples of sun-dried, ground seeds of the African pear (Dacryodes Edulis Seed Meal) (DESM) were analyzed using standard laboratory procedures. The gross energy and metabolizable energy contents of DESM (3820.74 kcal/kg and 3368.04 kcal/kg respectively) and its crude protein (6.98%), ether extracts (8.98%) crude fibre (7.42%) ash (3.36%) and nitrogen-free extracts (73.26%) indicate that DESM can be classified as an energy feed. The anti-nutrients present were tannins (6.37 x 10-4 mg/100g), phytates (0.49 mg/100 g) and oxalates (1.68 x 10-15 mg/100 g) while its amino acid profile revealed only trace amounts of the essential and non-essential amino acids and vitamins. DESM contained reasonable amounts of iron, manganese, zinc, sodium and iodine while its calcium, copper and selenium levels were low. It was concluded that DESM may act as a close substitute for maize, especially in poultry diets, on account of its similarity in soluble carbohydrate content to maize and its protein content. This is expected to reduce production costs to poultry farmers in Nigeria and make poultry products available to consumers at more affordable costs.
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