Browsing by Author "Mwenje, S.E."
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- ItemStudies of the Effects on Ostrich Growth, of Silage, Altering Feed Levels and Some Nutritional Supplements in Feed.(Asian Network for Scientific Information,, 2009) Dube, S.; Mwenje, S.E.; Kambasha, E.In this study we tested the effect of altering ostrich feed, by adding silage to feed in the ratio 2:1, by reducing feed levels to 90% and 75%, by adding antimicrobial growth promoter Zinc bacitricin and flavoumycin and presenting probiotics as liquid and powder. For each trial a control was set up with only normal prescribed feed supplied. All the birds used were health kept under high hygiene and vaccinated and dewormed to remove interference from pathogens. The results indicated that silage improved palatability and food intake. Reducing feed levels did not significantly alter the FCR or the performance of the birds. Growth promoters increased FCR but mortality was high. Probiotics were more effective when presented in liquid form than powder. The results show that data on effectiveness of feed supplements should be extrapolated to ostriches with caution.
- ItemStudies on the Effects of Reducing the Period of Using Starter Mesh and Application of Probiotics to Broiler Chickens.(Asian Network for Scientific Information, 2009) Dube, S.; Mwenje, S.E.; Gora, K.; Dube, C.Two sets of 150 day old broiler chickens were fed with starter mesh for 14 and 21 days respectively and there after given grower mesh until day 35 after which both were fed on finisher until day 42. There was no significant difference in the final carcass mass of both (p>0.05). Another trial was set up to investigate the effect of application of probiotics as liquid and as powder on 2500 birds per treatment and a control with no probiotics was also set up. The results showed that probiotics applied as liquid had the best effect on PEF and FCR. The experiment to determine the best time to apply probiotics was conducted on 2000 birds per treatment. The results showed that the best performance was obtained when application of probiotics was started at 14 days The PEF was also highest on birds which started probiotics on day 14.