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Articles by P.J. Masika
Total Records ( 2 ) for P.J. Masika
  O.O. Odeyemi , M.T. Yakubu , P.J. Masika and A.J. Afolayan
  The effects of the essential oil from Tagetes minuta leaves at 125, 250, 375 and 500 μL kg-1 b.wt. on some biochemical parameters of Wistar rats were studied. There was no significant difference in packed cell volume, mean corpuscular hemoglobin concentration, monocytes, lymphocytes, eosinophils, basophils, serum alanine transaminase, liver and kidney body weight ratios. However, the 125 μL kg-1 b.wt. resulted in significant decrease in red blood cell and hemoglobin, whereas the same dose produced increase in mean corpuscular volume, mean corpuscular hemoglobin, neutrophils and large unstained cell. Sodium, inorganic phosphorus, conjugated bilirubin, albumin, globulin and total protein at all the doses were not affected while potassium, chloride, urea, creatinine and total bilirubin concentration were increased at certain doses. Whereas the activity of serum gamma glutamyl transferase was significantly increased at all the doses, those of serum aspartate transaminase were increased only at 125 and 500 μL kg-1 b.wt. The kidney-body weight ratio was increased only at 375 and 500 μL kg-1 b.wt. The result showed that the oil of T. minuta had a mild effect on the parameters investigated at certain doses. This dose and parameter specific effects may influence the use of the essential oil from T. minuta as an insecticide against Sitophilus zeamais in maize grains meant for human and animal consumption.
  B. Gunya , V. Muchenje and P.J. Masika
  Objective: This study aimed to investigate the effects of Eisenia foetida (E. foetida) meal on the carcass characteristics and physicochemical attributes of broiler chickens. Materials and Methods: A total of 180, 12 per treatment un-sexed day-old broiler chicks were randomly assigned to five dietary treatments (T) as follows: 0% (EW0), 1% (EW1), 3% (EW3) 5%, (EW5) and 10% (EW10) earthworm meal inclusion. At day 35, carcass characteristics and meat quality were measured. Results: The results revealed the dietary effect on the wing and drumstick yield (p<0.05), however, supplementation of E. foetida meal linearly (p<0.05) reduced wing yield. The gizzard yield was increased linearly (p = 0.05) by worm meal inclusion. In addition, there were dietary treatments effects (p<0.05) on the colour of breast muscles over time. The highest values for L* (lightness) and b* (yellowness) were found in EW5 birds while the highest values for a* (redness) were found in EW1 birds. The pH values were affected (p<0.05) by the dietary treatments at 1h post-mortem with the highest pH values observed in birds in EW3 and EW1. Dietary treatments had a significant influence (p<0.05) on cooking loss; even though, there were no differences (p>0.05) observed on shear force values. The cooking loss increased linearly (p = 0.009) by the inclusion of worm meal. Conclusion: In conclusion, the inclusion of E. foetida meal into diets of broilers had positive effects on carcass characteristics and physicochemical attributes.
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