Navegando por Assunto "Irituia - PA"

Agora exibindo 1 - 4 de 4

Acesso aberto (Open Access)
Eficiência reprodutiva em vacas mestiças leiteiras em municípios do nordeste paraense
(Universidade Federal do Pará, 2010-03-30) SIMÕES, André Reale; RIBEIRO, Haroldo Francisco Lobato; http://lattes.cnpq.br/1614582293203770
Cows reared in semi-intensive production systems of two farms, one in the city of Irituia and another in Mother River in northeastern Pará. We analyzed reproductive records collected during September 2006 to March 2009. We analyzed 851 females, 106 (12,45%) heifers and 745 (87,55%) cows with a total of 1,356 gynecological exams. The overall pregnancy rate was presented 87,74% to 63,35% for heifers and cows. In 1356 examinations of the animals had 66,41%, 33,59% are pregnant and not pregnant. The pregnancy rate in relation to the type of reproduction was 50,66%, 41,30% and 77,27% for insemination artificial conventional (IA), AI time-fixed (IATF) and mating natural (MN), respectively, with an average of semen doses per pregnancy of 2,01. The genetic groups Guzerá 87,03%, 71,74% and Gir 70,54% Brown Swiss showed differences (p <0,01) pregnancy rate compared to Girolando with 62,15% to 61,91% Simmental and Holstein with 59,45%. The pregnancy rate found in the dry season showed a 75,77% difference (p <0,01) obtained for the less rainy season with 58,95%. The mean age at first service (IPC) and the first calving (IPP) were 29,6 ± 5,71 and 38,57 ± 5,71 months respectively, occurring differences (p <0,05) in the IPP grating the type of reproduction IATF and MN and rainiest season and less rainy. The period of service (PS) was 110,97 ± 70,87 days, difference (p <0,05) between the rainiest season and less rainy, and also influences (p <0,05) the variable year study, decreasing from 2006 to 2008 respectively. The pathologies found were 2,35% ovary hypoplastic, cervix winding 1,52% 1,76% abortion, endometritis 1,29%, 0,7% Cervix fibrotic, follicular cyst 0,70%, 0,12% Adherence Tubovárica , cyst luteal 0,12%, Pneumovagina 0,12% and 0,12% Vulva child.
Acesso aberto (Open Access)
Produtividade de vacas mestiças leiteiras em sistema semi-intensivo nos municípios de Irituia e Mãe do rio do nordeste paraense
(Universidade Federal do Pará, 2010-03-30) BARBAS, Cristiane de Carvalho; RIBEIRO, Haroldo Francisco Lobato; http://lattes.cnpq.br/1614582293203770
Check the influence of environmental factors on reproduction and production traits in dairy cattle genetic groups exploited in some farms in the municipalities of Irituia and Mother of the river in northeastern Pará. We used an average of 454 animals lactating crossbred Holstein, Brown Swiss and Girolando belonging two farms to system with the semi-intensive in the less rainy season. The mean and standard deviation for total milk production was equal to 1097,36 ± 330,47 kg, with a coefficient of variation equal to 25,64% and the group genetic Holstein, the less rainy season of birth and year of 2007 produced more. The period of lactation had an effect on the linear and increasing total milk production. The lactation period showed a mean and standard deviation equal to 218,17 ± 43,17 days, the highest average for the period of lactation was observed in the rainiest season and the average lactation period decreased over the years 2007 and 2008. The mean and standard deviation of calving interval found in the herd was equal to 398,975 ± 60,85 days. The least rainy season had an average calving interval of less than rainiest season and the average interval between births was reduced from 2006. The average age at first calving was found to be 38,57 ± 5,81 months. The coefficients of determination were greater than 0,85 (R2 a> 0,85), and genetic group for Holstein, the settings were better than those other two settings of genetic groups. For the genetic group Girolando, the shape of the lactation curve differed from the other two genetic groups difficult adjustment for the functions Gamma incomplete, Linear hyperbolic and Polynomial inverse. The adjustments made by the function Polynomial inverse showed slight deviation from the other two functions. The group presented genetic Holstein production peak and persistence slightly higher compared to other genetic groups.
Acesso aberto (Open Access)
Subsídios a construção do plano de manejo da bacia hidrogáfica do Rio Irituia no município de Irituia-Pará
(Universidade Federal do Pará, 2013-03-14) CARMO, Sheyla Renata da Silva do; MENDES, Ronaldo Lopes Rodrigues; http://lattes.cnpq.br/3384080521072847
The use of natural resources irrationally has caused a growing concern in all regions of the planet. It suggests strategies that reconcile development with preservation of these resources makes up the main challenge of environmental management. Water resources to be widely used and essential life management need to ensure its maintenance. In the municipality of Irituia, located in northeastern Pará, the human action on the natural landscape, including the riparian (Permanent Preservation Area), for agricultural, grazing or logging, has caused serious environmental and socioeconomic problems such as siltation of rivers, isolating communities, damage caused to the constant flooding of rivers, among others. The local population, along with the municipal public power, recognize the environmental and social damage caused in various communities in the municipality with years of deforestation, so this research may provide insights for development of the management plan in the Irituia river basin providing instruments and actions educational partner to reverse the degradation and propose the recovery of this important ecosystem.
Acesso aberto (Open Access)
Uso do território, experiências inovadoras e sustentabilidade: um estudo em unidades de produção familiares de agricultores/as na área de abrangência do Programa PROAMBIENTE, Nordeste Paraense
(Universidade Federal do Pará, 2006-04-12) OLIVEIRA, José Sebastião Romano de; KATO, Osvaldo Ryohei; http://lattes.cnpq.br/4241891652832872
This study it evaluated the sustainability of the innovative experiences using indicator and criteria based on scientific theory the perception of peasants in the Irituia, São Domingos do Capim, Concordia do Pará and Mãe do Rio counties in an area encompassing the Polo Rio Capim, the PROAMBIENTE program. The objective was understand the daily of those social actors on the land using less stressful technologies on the environment and the reasons that led them to extend the traditional home garden or yards for other parcels of the Units of Familiar Production (FPU), turning them into Agroforest Systems (AFs). Questionnaire was applied and empirical data were collected, as well as interaction took place with the people involved in 78 FPUs allowing of variability indntification for Factor Analysis, establishing four factors of production and commercialization; production practices; intervention and gender questions. The first factors was used as criterium and requiring the return of the surveyor to 18 FPUs to apply the questionnaire and evaluation forms on the social, economic, cultural and environmental-ecological indicators. The sustainability evaluation was done by means of grouping these indicators using the Ameba agroecological method and by mapping using the interpolation method next door neighbor in the study area. Cultural and ecological/environmental indicators led to better conditions in terms of sustainability, in the range of good to excellent while the social economic indicators led to results appraised as weak to fair.