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  2. Pesquisar por Orientadores

Navegando por Orientadores "OAIGEN, Ricardo Pedroso"

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    Análise bioeconômica da produção de novilhos precoces de diferentes grupos genéticos terminados em confinamento, em Paragominas, Pará
    (Universidade Federal do Pará, 2014-08-29) MAIA, Janaina Teles da Silva; DOMINGUES, Felipe Nogueira; http://lattes.cnpq.br/1461187309835749; OAIGEN, Ricardo Pedroso; http://lattes.cnpq.br/8056365542183068
    The aim of this study was to evaluate the feasibility of a system of early termination of steers, in feedlot from, zootechnical and economic indicators, as well as compare the performance of different genetic groups (crosses with zebu and taurine). The study was conducted on private property in the municipality of Paragominas, Pará, which were used in the experiment the animals own production system, randomly selected from three genetic groups: Nellore, ½Angus ½Nellore e ½Charolais ½Nellore, but with date of birth and approximate weight, ie, the same contemporary group. The experiment was conducted in 2012 and 2013 with animals from birth, 2010 (67 animals) and 2011 (63 animals), respectively, all with an average age of 21 months at the beginning of feedlot season. To evaluate the production performance animals were weighed every 28 days, following a solids fasting period of 16h. Each week samples of concentrated feed, silage, and total diet (silage + concentrate) for analysis bromatological were collected. Economic data were collected on the property, and tabulated and analyzed in MS Excel. The results showed especially the animals crossing ½Charolais ½Nellore as the medium of performance indicators, statistically not differing in some aspects from the crossing ½Angus ½Nellore junction, but always with higher values. As for economic data showed positive indicators feedlot for two years of the experiment, with profitability and average return of 8.5% and 9%, respectively, highlighting the genetic group ½Charolais ½Nellore, as the most profitable, due to higher carcass yield.
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    Caracterização dos sistemas de produção na bovinocultura leiteira nas mesorregiões sudeste e nordeste paraense
    (Universidade Federal do Pará, 2014-02-25) DANTAS, Vanderson Vasconcelos; GODOY, Bruno Spacek; http://lattes.cnpq.br/4036516695601666; OAIGEN, Ricardo Pedroso; http://lattes.cnpq.br/8056365542183068
    The dairy industry is of great importance in the regional economy in terms of employment and income generation , especially for family farming . Know the reality of these systems becomes essential so that they can generate specific grants for further development of the activity. In this context, studies on the different production systems emerge as an important tool. The objective of this study systems of milk production was characterized in the regions of Southeast and Northeast Pará through the use of multivariate analysis techniques . The survey was conducted through questionnaires with 112 properties located in the municipalities of Ulianópolis - PA and PA - Irituia . Data were tabulated in Microsoft Excel and processed using SPSS 18.0 software . Through frequency analysis revealed that the total area of varied properties 7-1600 ha . The owners were ranked according to the number of cows in the existing properties and the lowest represented by those with less than 10 cows, which corresponded to 5.35 % and higher over 50 ( 23.21 %). Regarding herd productivity observed an overall average of 4.34 ( L cow -1 day -1) . Feeding the flock is based on cultivated pastures , being the most used braquiarão . Only 19.60% of the properties held supplementation with concentrate and roughage with 13.39% . The reproductive management is performed in 86.6 % through natural mating without any control , which results in little specialized animals for dairy production . The management of milking presents itself as the poor hygienic and sanitary conditions , resulting in a poor quality product . Management practices show little expression among producers . With respect to the typology established through factor analysis revealed four factors that explained 66.99 % of the original variables , and the cluster analysis identified 4 groups of producers with similar profiles . The group III corresponded to the group of producers that had the highest adoption of technology such as supplemental feeding , health management , milking and activity management technology, thus having better performance with an average productivity of 5.02 ( L cow -1 day -1) . Groups I and II are characterized by family production systems with low specialization and low productivity and group IV consists of family farmers who presented with an incipient share of agriculture production , having the lowest production and economic returns.
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    Perfil de consumidores e potenciais consumidores da carne de búfalo na cidade de Belém-PA-Brasil
    (Universidade Federal do Pará, 2014-02-24) MARQUES, Cristiane Soares Simon; MORAES, Carina Martins de; http://lattes.cnpq.br/3908457799297670; OAIGEN, Ricardo Pedroso; http://lattes.cnpq.br/8056365542183068
    This study sought to explore and characterize the main elements of perception of consumers or potential consumers of buffalo meat as to its conduct, listing, cultural and social issues, and test your knowledge about the attributes of this product. Limiting factors, opportunities and challenges of the market in the capital city of the state of Pará Belém were also addressed in this work. One survey research or evaluation classified as confirmatory, exploratory and descriptive as to its purpose, by applying a semi-structured questionnaire complemented by an affective paired sensory analysis of beef and buffalo meat was performed respectively. It was evident that there is a promising market for buffalo meat in the region since that action is taken to improve the distribution of buffalo meat regularly in outlets and joint actions to promote the beneficial characteristics of this product with supporting institutions public and private players in the production chain. As the result of market segmentation four distinct clusters were identified, namely: Group I of " Young and interested group II "Mixed and indifferent", group III of the " Graduates and successful" and group IV of "healthy women". All groups showed positive responses regarding buffalo meat, however Clusters I and III stood out in several indicators of research especially with respect to their preference and predisposition to purchase and inclusion of buffalo meat in your meals.
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