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Search Results: 1 - 10 of 482539 matches for " M.O.;Detmann "
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Supplementation levels for growing beef cattle grazing in the dry-rainy transition season
Sales, M.F.L.;Paulino, M.F.;Valadares Filho, S.C.;Figueiredo, D.M.;Porto, M.O.;Detmann, E.;
Revista Brasileira de Zootecnia , 2011, DOI: 10.1590/S1516-35982011000400027
Abstract: the objective of this experiment was to study the effects of different levels of supplementation on the performance, intake, digestibility, ph and rumen ammonia concentration in growing bulls grazing brachiaria decumbens stapf. pasture, during the dry-rainy transition season. for evaluation of performance, intake and digestibility, it was used 25 non-castrated steers at 11 months of age and initial average body weight of 270 kg, grouped in five plots of five animals each, following a completely randomized design. each plot received one of the following feeding treatments: mineral mixture and supplement at the proportion of 0.5, 1.0, 1.5 and 2.0 kg/animal/day, corresponding to 0.18, 0.36, 0.54 and 0.72% of the average body weight of the animals. the area designated for the animals was constituted of five 2.0-ha paddocks. for the evaluation of the ph and rumen ammonia concentration, five crossbred non-castrated steers were used, with average body weight of 240 kg, fistulated in the esophagus, rumen and abomasum, disposed in a 5 × 5 latin square, with five treatments and five experimental periods. animal performance behaved in a positive linear manner according to the supplementation levels, responding with an increase of more than 80% on weight gains of the animals. intakes of total and pasture dry matter (dm), organic matter and neutral detergent fiber were not influenced by supplementation. intakes of crude protein, non-fibrous carbohydrates, ether extract and total digestible nutrients as well as nutrient digestibility and rumen ammonia concentration showed a positive linear pattern in response to supplementation levels. increasing levels of concentrate supplementation influence positively the performance of bulls growing on pastures during the dry-rainy transition season.
Fontes proteicas em suplementos para novilhos no período de transi??o seca-águas: características nutricionais
Acedo, T.S.;Paulino, M.F.;Detmann, E.;Valadares Filho, S.C.;Sales, M.F.L.;Porto, M.O.;
Arquivo Brasileiro de Medicina Veterinária e Zootecnia , 2011, DOI: 10.1590/S0102-09352011000400015
Abstract: this study was conducted to evaluate protein sources in supplements for bulls grazing brachiaria decumbens stap., in the dry-rainy transition season, regarding nutritional characteristics. four holstein x zebu bulls (300kg of body weight - bw) fitted with esophageal, ruminal, and abomasal cannulas, allotted in a latin square experimental design 4x4. the treatments were protein supplements with 38% of crude protein (cp) based on grounded corn grain + urea (gcu); grounded corn grain + soybean meal (gcsb); and cotton seed meal (38% cp) (csm), supplied at a level of 0.17% bw, and a mineral mix control treatment (mm). the animals fed diets of gcu treatment showed neutral detergent fiber (ndf) intake of 12.1g/kg of bw, 19.9% greater than the observed on animals fed diets of mm and gcsb, 10.2 g/kg of bw, and similar to the ndf intake found for animals fed csm treatment, 11.0g/kg of bw. the dry matter (dm) total apparent digestibility (tad) was higher for gcu and gcsb treatments. the ruminal ph, microbial nitrogen production (mnp), and microbial synthesis efficiency (mse) were not influenced by the treatments. the supplementation with corn and urea provides greater dm intake and digestibility when compared to the mineral mix.
Effect of pressure on the electrical properties of GaSe/InSe heterocontacts
Vorobets, M.O;
Revista mexicana de física , 2010,
Abstract: barrier structures were produced using optical contact between the indium and gallium selenides. the effect of mechanical pressure ranging from 0 to 100 kpa on the electrical properties of the gase/inse heterocontacts was investigated. the data was analyzed assuming the sis (semiconductor - insulator - semiconductor) model. using this model we were able to explain the current - voltage dependence. it was found that the modification of heteroboundary significantly affects the electric transport.
M.O. Okoronkwo
African Journal of Clinical and Experimental Microbiology , 2002,
Abstract: A parasitological survey was conducted among 1080 dry season farmers and controls spread over nine farming locations in the Jos and Barkin-Ladi areas of Plateau State, Nigeria, to provide data or parasitic infections in the area due to waste utilization. Standard laboratory procedures were adopted in the collection, processing and parasite identification in the stool samples. The rates of parasites infections in the farmers were 91.6% for helminthes and 86.4% for protozoa. Helminth infection rates but not those of protozoa, varied significantly between farmers and controls. Average infection rates were. Ancylostoma duodenale 91.9%. Ascaris lumbricoides 84.7%, Trichuris trichiura 74.2%, Strongyloides stercoralis 50.3%, Giardia lamblia 13.3%, Entamoeba coli 28.4%, Chilomastix mesnili 15.4%, Endolimax nana 17.3%, Isospora belli 6.3% and Lodoamoeba butshkii 11.5%. More males than females were infected. The rates of infection varied among farmers in the different locations, but younger farmers had higher prevalences. Significant correlations between infections and their symptoms were observed with diarrhoea and abdominal pains being most common. (Af. J. of Clinical and Experimental Microbiology: 2002 3(2): 104-110)
Emancipating Women Through Technological Empowerment: Aid to Sustainable Development
M.O. Asokhia
Asian Journal of Information Technology , 2012,
Abstract: The study looked at how the knowledge and positive involvement of women in Information Communication Technology (ICT) can assist in emancipating them. Women are integral part of the population that a country needs in development. However, the women of Nigeria for a long time in the history of the nation s development have not been given their right of place. Information Communication Technology is a potent tool in meeting human basic needs. Unfortunately, the women that are the fulcrum on which development depends do not have good exposure to ICT. The study highlighted some of the problems inhibiting women s effective participation and proffered useful solutions that will assist them in being fully functioning in the use of Information Communication Technology.
Socio-Cultural Practices Promoting the Transmission of Urinary Schistosomiasis among School Aged Pupils in a South Western Village in Nigeria
M.O. Oniya
Research Journal of Biological Sciences , 2012,
Abstract: Studies were carried out on the epidemiology of urinary schistosomiasis among school-aged pupils in a Nigerian Village endemic for the disease. Prevalence of infection as at the time of survey was 59% and results obtained via questionnaire administration on socio-cultural practices promoting transmission revealed that there was a dearth of information about the aetiology and transmission of the disease, which still remained the major public health problem in the community. Increased community based education by qualified personnel and committed control measures against parasite and snail host over a long term basis, were identified form this study as probable methods of eradicating the scourge.
Comparison of Various Fatty Acid Sources for Making Soft Soap (Part 1): Qualitative Analysis
M.O. Edoga
Journal of Engineering and Applied Sciences , 2012,
Abstract: This study compared the various fatty acid sources for making toilet soap via conventional method. These included palm oil, Palm Kernel Oil (PKO), groundnut oil and tallow fat. The toilet soap samples were developed using hot batch process by reacting 16.8 g caustic potash with 50 g oils/fats. The mixture was continuously stirred via electrically operated mechanical stirrer for 25-30 min. Later, 20 g of water was added to the system to break-up the foams, as well as aid the saponification process. Stirring was continued for 40-60 min, after which the salting process was carried out by adding the mixture to a solution of saturated sodium chloride. Also, stirring continued until the paste became thicker thereafter the reaction was stopped and was allowed to stand for several hours to cool and solidify. Analysis of the various soap samples was carried out to test for formability, corrosiveness, hardness, pH, rate of wear, acid value, saponification value and iodine value. Formability and corrosiveness results obtained are as follows: 9.90 cm for palm oil, 10.70 cm for (PKO), 10.74 cm for groundnut oil and 11.58 cm for tallow fat and 2.76% free alkaline for palm oil, 2.62% free alkaline for PKO, 2.60% free alkaline for groundnut and 2.52% free alkaline for tallow fat soap, respectively. The pH values are also given as 11.63 for palm oil-based soap, 11.0 for PKO-based, 10.30 for groundnut oil-based and 10.46 tallow oil-based soap.
Uphole Seismic Refraction Survey for Low Velocity Layer Determination over Yom Field, South East Niger Delta
M.O. Ofomola
Journal of Engineering and Applied Sciences , 2012, DOI: 10.3923/jeasci.2011.231.236
Abstract: The uphole refraction survey was carried out in YOM field 4-D prospect to evaluate the weathering thickness and velocity of the Low Velocity Layer (LVL). Five uphole locations were occupied in the study area and the time intercept technique of the seismic refraction interpretation was employed. For the different locations (A-E), the weathering thickness was found to vary from 0.9-1.9 m with velocity from 250-800 m sec-1. A sub weathering layer was also observed in all locations except A. Also, the velocity of the consolidated layer was found to vary from about 1750-1800 m sec-1 with a mean velocity of 1766 m sec-1. Using this result to eliminate the effect of LVL on reflection data from the graphical approach, it was observed that the elevation and weathering correction (static correction) was found to be eliminated at a datum of 2 m deep.
Fractal Analysis of the Pores in Annealed Al-V2O5 Mechanically Alloyed Composite
M.O. Durowoju
Journal of Engineering and Applied Sciences , 2012,
Abstract: Fractal analysis was used to observe the size, shape and distribution of pores in Al-V2O5 mechanically alloyed composite. The analysis reveals that the pores are of irregular shapes, i.e shrinkage pores, with sphericity < 0.3.The `worst` of the shapes is the pore with = 1.0254e-009 and D = 1.8541, while the `best` shape is the pore with = 4.8309e-004 and D = 1.6521. Also, the graph of against D shows that as decreases the D values increases. This is in agreement with the theoretical background.
Economics of Maize Storage Techniques by Farmers in Kwara State, Nigeria
M.O. Adetunji
Pakistan Journal of Social Sciences , 2012,
Abstract: Maize Storage Technologies (MST) are diverse among farmers and these variations have economic implications, this study, therefore, examines the benefit of using various Storage Techniques (MST) in Kwara State. Multi-stage sampling technique was used to choose 8 local government areas from the four zones, five villages were selected from each LGA. One hundred and eighty eight maize farmers were selected using probability proportionate to number of farmers in each village as contained in the ADP household lists. Structured questionnaires covering socio economic characteristics, quantity of maize stored, types of storage, length of storage, cost and returns on the use of storage were administered to the maize farmers. Descriptive, budgetary, partial budget analysis and multinomial logit regression were used to analyse the data. Three maize storage techniques being used by the respondents were: Local Storage (LS), Semi Modern Storage (SMS) and Modern Storage(MS). Among maize farmers, 37.9, 20.7 and 10.6% used LS, SMS and MS, respectively, while 30.8% did not store their maize. The gross margin for using various storage technique were N8,345/t (LS), N11,135/t (SMS), N12,435/t (MS). The modern storage had the highest incremental gross margin (N8,135/t), compared with the control (i.e., no storage). The result from partial budgeting and marginal analysis shows that modern storage techniques is the best because it has the highest difference in gross margin and highest marginal rate of return. Multinomial logit model results reveal the odds of using different storage techniques by farmers. It could be seen that rise in transportation cost, labour cost and farmers household size enhance the probability of using no storage. The probability of using local storage is enhanced by farmer s age, semi modern is likely influenced by quantity of maize stored, while the probability of using modern storage is increased by years of experience, educational level of the farmers and quantity of maize stored by the farmer. Modern storage technology usage, improvement in literacy level and large quantity of maize stored would enhance farmers income.
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