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Articles by M.C. Uchegbu
Total Records ( 7 ) for M.C. Uchegbu
  C.C. Achonwa , I.P. Ogbuewu , M.C. Uchegbu and I.C. Okoli
  Background and Objective: Indigenous plants remain green at critical times of the year and produce large quantities of year round fodder, which is regarded as unconventional feed sources in tropical countries like Nigeria. This study evaluated the physico-chemical characteristics of leaf meals derived from Ficus microcarpa, a domesticated browse plant at Nnobi community, southeastern Nigeria. Materials and Methods: The three villages in the community namely Awuda (Sample A), Ebenesi (Sample E) and Ngo (Sample N) were purposively selected for the study in order to generate representative data for the community. Fresh foliage from three stands of F. microcarpa at each village was collected and air-dried by spreading them under shed every day for about 6-8 days and thereafter oven dried until they became crispy and then milled to produce F. microcarpa leaf meals (FMLM). The leaf meals were analyzed for their physicochemical values. Results: Results should that FMLM was rich in Fe and Zn. The order of micro mineral concentration was Fe>Mn>Cr>Zn>Cu>Ni. Conclusion: The FMLM is therefore relatively rich in crude protein and energy, digestible fibers and essential minerals. Feeding trials incorporating the leaf meal are recommended in order to evaluate its true nutrient value.
  I.P. Ogbuewu , A.A. Omede , O.K. Chukwuka , O.O.M. Iheshiulor , M.C. Uchegbu , A.C. Udebuani , B.C. Ekenyem , I.C. Okoli and M.U. Iloeje
  Phytoestrogens are naturally occurring phytochemicals found in plants and plant products, which are structurally and functionally similar to human or animal estrogens (17β-oestradiol) or synthetic estrogens such as diethylstilboestrol. The principal phytoestrogens are the isoflavones, which are similar to 17β-oestradiol and then the lignans derived from precursors in the diet by the gut microflora. Isoflavones are members of the flavonoid family, which are in turn members of the larger group of plant constituents known as polyphenols. The principle isoflavones in soy are genistein, daidzein and their metabolites. Since, soy isoflavone are naturally occurring non-steroidal compounds, which are structurally similar to endogenous gonadal steroid 17β-estradiol, they possess the ability to cause estrogenic or/ and antiestrogenic effects and therefore could trigger estrogen dependent physiological responses. As result of these actions, there is currently much interest within the scientific community regarding clinical benefits of soy based isoflavone.
  M.C. Uchegbu , N.O. Igbokwe , A.A. Omede , I.C. Ekwuagana , I.C. Okoli and B.O. Esonu
  A study was carried out with one-hundred and twenty 4-week old Hubbard broilers to compare the quality of some commercial feeds by assessing the performance of finisher broilers fed these diets. The commercial feed brands were collected and branded ZF, VF and EF. A formulated Control Feed (CF), T1 and three other commercial feeds ZF (T2), VF (T3) and EF (T4) were fed to the finisher broilers for 28 days in a completely randomized design experiment. The results showed that CF, VF and EF performed better than ZF in daily weight gain. Among the commercial feeds, however, VF achieved the fastest daily weight gain and therefore promoted the fasted growth rate, hence indicating a better balance in nutrient composition and improved feed quality.
  Irene U. Chima , M.C. Uchegbu , I.C. Okoli , C. Ezema and S.N. Wehke
  Diseases and infections have always been a major concern to intensive poultry production industry. Pathogen contamination of farming environments can be prevented using proper health care products such as disinfectants. This study evaluated the efficiency of commonly used disinfectants against bacteria occurring in intensive poultry farming environments in Imo State, Nigeria. The efficacy of six commercial disinfectants namely; Izal®, Z-germicide®, Diskol®, Virkon®, Vox® and CID 20® in reducing the number of micro-organisms was assessed. Among the tested disinfectants, Virkon® (oxidizing agents) was the most efficient, reducing the micro-organisms by 95%. The in vitro test carried out to verify the effectiveness of disinfectants did not consider the adverse conditions found in the poultry farms. Therefore, the evaluation of the efficacy of on-farm reconstituted disinfectants over time was also carried out. The results indicated that efficacy of all the disinfectants was reduced during the afternoon. However, efficacy gradually increased during the evening for all the disinfectants but not as much as was observed in the morning. Temperature, it seems affects the activity of the disinfectants against the bacterial organisms.
  Audifax N. Iwu , C.S. Ebere , I.P. Ogbuewu , I.F. Etuk , M.N. Opara , M.C. Uchegbu , I.C. Okoli , F.C. Iheukwumere and U. Herbert
  Forty eight crossbred male and female rabbits aged 12-14 weeks were used to study the effects of supplementing Coconut Shell Ash (CSA) on reproductive organ characteristics and serum sex hormone concentrations of growing rabbits. The rabbits were divided into 24 males and females, respectively. Each group was divided into four experimental treatments T1, T2, T3 and T4 of six animals and was further replicated three times with two animals per replicate in a Completely Randomized Design (CRD). The animals were fed a commercial grower rabbit ration which was supplemented with CSA at the rate of 0, 1, 2 and 3 g kg-1 b.wt., respectively. At the end of 12 weeks feeding, three rabbits were selected from each group, slaughtered and used to determine reproductive organ characteristics. Blood samples from the slaughtered animals were collected from the jugular vein and assayed for serum reproductive hormones concentrations. Data collected were subjected to analysis of variance. Testicular morphometry result showed that 1 to 2 g kg-1 b.wt. CSA supplementation could improve the weight of testis, size and epididymal weights indicating that up to 2 g kg-1 b.wt. CSA supplementation supported superior testicular development. This was associated with increasing serum testosterone concentration indicating probably a CSA enhancement of metabolic activity. One gram kg-1 b.wt. was the optimal CSA supplementation rate in female rabbits, since this led to improved weight of whole reproductive tract, weight of ovary, oviduct and uterus. This was equally associated with increased estrogen concentration, which increased with increasing CSA supplementation.
  A. Omede , V.M.O. Okoro , M.C. Uchegbu , I.C. Okoli and G.A. Anyanwu
  Information on the proximate composition and sometimes the toxicology of novel feedstuffs has been used routinely in determining the suitability of feedstuffs in poultry feeding, especially during animal feeding trials. Limited information however exists on the biophysical characteristics of such novel feedstuffs. The Bulk Density (BD), Water-holding Capacity (WHC) and Specific Gravity (SG) of three novel feedstuffs {Leaf Meal (LEM), Rumen Digesta (RD) and Poultry Dung (PD)}, were evaluated. Available published and unpublished results on the proximate compositions of the materials were related to the physical characteristics results. LEM had significantly (p>0.05) lower BD and SG than RD and PD while RD recorded the highest WHC value although the value was similar (p>0.05) to that of LEM. Particle Size (PS) effects showed that BD of RD and PD were lower at the ≥1.00 mm PS than at the unmodified and <1.00 mm PS, indicating that materials of similar Crude Fiber (CF) could be manipulated to yield different BD with possible ultimate effects on the performance of birds. The WHC of LEM at <1.00 mm PS level was seven times higher than that of unmodified and =1.00 mm PS while RD value at the same <1.00 mm PS level was 2 and 4 times higher than those recorded at the unmodified and ≥1.00 mm PS levels, respectively. This is evidence that grinding increased the surface area of the LEM, thus improving the ability of its Non-starch Polysaccharides (NSP) to bind water. Information on the feed physical characteristics could be used together with proximate and toxicological information to determine the nutritional and intake potentials of a novel feedstuff even before a feeding trial.
  I.P. Ogbuewu , V.U. Odoemenam , H.O. Obikaonu , M.N. Opara , O.O. Emenalom , M.C. Uchegbu , I.C. Okoli , B.O. Esonu and M.U. Iloeje
  There has been astronomical increase in the costs of chemical fertilizers, agrochemicals, animal feeds and synthetic drugs in the developing countries, with an increasing indebtedness and acute poverty. This situation exerts enormous pressure to explore local resources, handy to combat these deficits and improve quality of life of the people. One of such available resources with great potentials in the 21st century is the neem (Azadirachta indica A. Juss) tree. Neem belongs to the family Meliaceae. It is the most versatile, multifarious trees of tropics, with immense potentials. It possesses maximum useful non-wood products such as leaves, bark, flowers, fruits, seeds, gum, oil and neem cake than any other tree species. Biologically neem has numerous bioactive ingredients with diverse applications. These bioactive ingredients are known to have antiallergenic, antidermatic, antifeedent, antiviral, antifungal, anti-inflammatory, antipyorrhoeic, antiscabic, insecticidal, larvicidal, anti-implantation, nematicidal, spermatocidal and other biological activities. This review is an attempt to assemble all the major research findings in neem which is of direct relevance to environment, industry, medicine and agriculture.
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