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Articles by M.U. Uko
Total Records ( 3 ) for M.U. Uko
  E.B. Etuk , I.C. Okoli and M.U. Uko
  A study of six farms each randomly selected from each of five local government areas of Abak agricultural zone of Akwa Ibom State, Southeastern Nigeria, was conducted to assess on-farm prevalence and management of poultry coccidiosis. The study, which involved scrutiny of farm and clinical records, distribution of structured and pre-tested questionnaires to elicit relevant data, showed that in the previous 12 months, 3,327 (29.36%) birds out of 11,333 encountered in the 30 farms suffered from coccidiosis. Overall mortality rate was 2.63%. The highest prevalence rates were recorded in the rainy season (12.7%), among birds managed in deep litter (26.69%), birds 1-5 weeks old (18.75%), layers (22.29%) and Harco strain (26.42%). Sixty percent of the farms consulted veterinarians for diagnosis and treatment especially at first incidence while 34.94% indulged in self-diagnosis. Good sanitary and hygiene practices were being employed in 50% of the farms as the major preventive measure. Combined administration of anticoccidial drugs and removal of litter (43.33%) ranked highest as control measure. Continued veterinary education and extension services are needed in the area to update the knowledge of the farmers especially on the benefits of vaccination, dangers of self-diagnosis and adoption of an integrated approach involving good hygienic practices and use of both drugs and vaccines in disease prevention.
  Ojewola, G.S. , S.F. Abasiekong , M.U. Uko and M. Oguike
  The effect of dietary lysine supplementation at varying levels on the reproductive performance of rabbits of mixed breed was investigated. A total of twenty (20) does with average weight of 1.85kg were used for the study in a Completely Randomized Design (CRD). The experimental diets consisted of concentrate mash (16.87% CP and 2564.84 kcal kg 1ME) supplemented with 0.00, 0.10, 0.20, 0.30 and 0.40 lysine levels, respectively, designated as diets 1, 2, 3, 4 and 5 with 4 replications having one doe per replicate, thus making a total of 4 rabbits per treatment. The experiment lasted 11 weeks (77 days). The results showed that the various parameters among which are gestation length, average litter size at birth, litter weight at birth, litter weight and size at weaning were not significantly influenced (p>0.05). Nonetheless, rabbits fed diet 3 gave the best mean litter weight (1272 g) at weaning, while diet 2 has the highest (5.44) weaning size. It was also observed that individual kit weaning weight differed from treatment to treatment depending on the litter size at weaning; the higher the litter size at weaning the lower the individual weaning weights. In conclusion, lysine supplementation and total dietary lysine in rabbit diets should not exceed 0.20% and 1.01%, respectively.
  Ojewola, G.S. , S.F. Abasiekong , M.U. Uko and S. Akomas
  Five graded levels of dietary methionine supplementation were compared in an isonitrogenous (16.87%CP) and isocaloric (2564.84 kcal kg-1) diets fed twenty (20) matured female rabbits (mixed breed) with mean weight range of 1875g and 1893g. The trial lasted 11 weeks (77 days). The rabbits were randomly allocated to the five dietary treatments in a Completely Randomized Design (CRD). Each treatment was replicated four times with one rabbit per replicate. All the parameters considered were significantly influenced (p<0.05) except the average litter weight at birth. The mean number of matings (1.0 to 2.0) to conception and gestation length followed no discemible pattern. However, premature litters were produced by rabbits fed diet 5. Mean litter size at birth and mean litter weight respectively ranged from 3.17 to 6.00 and 214g to 29lg and followed no definite pattern. Heavier birth weights were obtained in all the diets (1-4) only with the exception of rabbits fed diet 5. The mean litter size at weaning also rose from D1 to D4 only with an exception to rabbits fed Diet 5. The best mean litter weight at weaning was obtained from rabbits fed diet 4. Methionine supplementation at 0.3% therefore, produced a better kit weaning weight, an indication that total dietary methionine content should not exceed 0.61% under a tropical condition. 100% mortality of kits was obtained in rabbits fed D5, an indication that 0.71 dietary methionine content is deleterious to the survival of rabbits.
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