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Articles by C.T. Gadzirayi
Total Records ( 2 ) for C.T. Gadzirayi
  C.T. Gadzirayi , B. Masamha , J.F. Mupangwa and S. Washaya
  An exploratory study investigating the effects of supplementing soyabeans with Moringa oleifera leaf meal, as a protein source in poultry production was done at Bindura University Farm. Five different graded levels of Moringa oleifera meal were used in formulating the diets. Ration formulation using soyabean, yellow maize and Moringa oleifera meal as ingredients for broiler starter (20% Crude Protein) and broiler finisher (18% Crude Protein) diets was done using the Pearson Square Method. Twenty-five day old Habbard chicks were randomly allocated to the five treatment diets T1 (0% Moringa oleifera meal), T2 (25% Moringa oleifera meal), T3 (50% Moringa oleifera meal), T4 (75% Moringa oleifera meal) and T5 (100% Moringa oleifera meal) in a completely randomized design. Birds were managed under the dip litter system with five compartments each with five birds for a period of 6 weeks. Weekly weight gain, feed intake and feed conversion ratio were recorded throughout the period. Evisceration of carcasses was done after 6 weeks and the different body parts were weighed and recorded. Proximate analysis of Moringa oleifera meal, broiler starter and broiler finisher diets were done and the results were tabulated. Statistical analysis was done using Genstat Software Version 12. No significant differences were noted in the amount of feed taken by broiler birds under different treatments of Moringa oleifera meal, however significant differences in feed conversion ratios were noted. It was therefore concluded that inclusion of Moringa oleifera meal as protein supplement in broiler diets at 25% inclusion level produces broilers of similar weight and growth rate compared to those fed under conventional commercial feeds (p>0.05).
  C.T. Gadzirayi and J.F. Mupangwa
  The high cost of conventional feed ingredients in poultry diets has necessitated the investigation into unconventional readily available feedstuffs. The study was designed to investigate the effects of feeding different levels of Moringa oleifera leaf meal (MOLM) on feed intake and growth performance of indigenous chicks. Eighty four unsexed indigenous chicks were assigned to four treatment diets, with each treatment being replicated three times. The dietary treatments were as follows; control diet (T1) without MOLM and diets containing MOLM were at the rate of 5% (T2), 10% (T3) and 15% (T4) to supplement the CP of the control diet. Chicks fed on 0% MOLM had a higher average weekly feed intake than the other three treatments (T2, T3 and T4). The highest weight gain was experienced between weeks 4 to 6 except for treatment 3 that had its peak weight gain on week 5. FCR was similar for all dietary treatments. Weekly live bird weight (WLBW) advantage of chicks fed 0% MOLM diet was maintained followed by those fed diet containing 5% MOLM. The chicks on 10 and 15% MOLM diet recorded similar, but significantly (p < 0.05) lower WLBW from the 5 to 8th week than chicks on 0-5% MOLM. The study recommended MOLM inclusion levels of 5% in chicken diets during early brooding stage.
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