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Articles by S.R. Amao
Total Records ( 3 ) for S.R. Amao
  L.O. Ojedapo , S.R. Amao , S.A. Ameen , T.A. Adedeji , R.I. Ogundipe and A.O. Ige
  A total of 509 birds comprising 249 Nera Black (NB) and 260 Brown Shaver (BR) were used for this study. Data were collected on the birds from week one to twenty. Prediction of Body Weight (BW), Chest Girth (CG), Keel Length (KL), Body Length (BL) and Shank Length (SL) were highly significant (p<0.001). The coefficient of determination (R2) varied from 85 to 99% for CG and KL. In both genotypes, the relationship between BW and other body measurements were higher in CG and KL traits and best described by cubic model. Cubic function (R2 = 99%) predicted BW more accurately than quadratic and linear functions. The phenotypic correlation coefficients at day old in NB between BW and BL were positive, medium and highly significant (p<0.01), the phenotypic correlation coefficients for BW and BL in BR was low, negative and highly significant (p<0.01). Lower correlation values were obtained between BW and BL and significant (p<0.05) in NB strain at 4 weeks old. Also, negative highly significant was achieved between BW and SL. At 8 weeks old, low to medium correlation coefficients were observed between BW and SL, BW and KL, BW and CG in NB strain. Significant correlations were achieved between BW and SL, BW and CG traits in BR strain. At 12 weeks old, high, positive and significant (p<0.01) values were observed between BW and other traits in NB. The phenotypic correlation coefficients were of medium to high in NB between BW and KL, BW and BL at 16 weeks old. There were highly significant differences (p<0.01) between BW and other traits measured in BR strain. At 20 weeks old, the correlation values obtained were low to high in NB, lower values were also obtained for BR at the same age. As a result of these observations, it was considered possible to use the body weight in determining BL, SL, KL and CG.
  L.O. Ojedapo , O. Akinokun , T.A. Adedeji , T.B. Olayeni , S.A. Ameen , A.O. Ige and S.R. Amao
  Growth evaluation and short-term egg laying performance of 360 commercial layers of three different strains, Brown shaver (BRS), Nera black (NB) and Black shaver (BLS) were studied at day old, 4, 8, 12, 16 and 20 weeks. Parameters measured were bodyweight, body length, breast girth and keel length. Body weight and other body dimensions were significantly (P<0.05) influenced by strain of chickens. Nera black layers consistently had the highest body parameters at all ages. Generally, body parameters increased with increasing age of the birds. The correlation coefficients amongst the body parameters revealed positively high and significant (P<0.05) relationship. Traits considered for egg laying performance were egg number and egg weight. Strains significantly (P<0.05) affected mean egg number and egg weight at weeks 4, 7 and 8; and 12, 13 and 15 respectively. BRS laid more eggs per bird than other genotypes, followed by NB and BLS, the least. Egg weight was highest in BRS, NB and BLS in that order. Estimates of correlation coefficient showed that the traits being considered are mostly positive but with low correlation of egg number to egg weight for BRS and BLS. Phenotypic correlations of egg traits were found to be negative between egg number and egg weights in NB.
  F.G. Sodeinde , J.A. Akinlade , O.A. Aderinola , S.R. Amao , J.A. Alalade and A.T. Adesokan
  The in vitro gas production and the proximate composition of field grown Panicum maximum cv T 58 (Guinea grass) harvested from poultry manured soil and harvested after 6 weeks of regrowth was determined. The experiment was a split plot design with three replicates. Poultry droppings increased the volume of the gas produced in both stem and leaf of P. maximum cv T 58. The result reveals that stems produce higher methane gas than the leaf. This indicates that the stem lost high energy compared to the leaves when fed to the ruminants. There were no significant differences (P > 0.05) in metabolizable energy (ME), organic matter digestibility (OMD) and short chain fatty acids (SFA) measured. Panicum maximum from fertilized poultry dropping recorded higher crude protein 8.40% content in the leaf compared with the stem of 5.08 %. Despite these variations, the forage generally contained adequate amounts of the minerals to meet livestock requirements. In production systems, the quality of Panicum maximum a major feed of grazing animals in south Western Nigeria could be enhanced by application of the poultry dropping to the soil.
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