58 resultados para ganho


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Pós-graduação em Fisiopatologia em Clínica Médica - FMB

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

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The purpose was to evaluate the reproductive performance of woolless ewes due to the feeding management of offsprings and weaning age in addition to measuring the effect of gender on weight gain of lambs. Sixty-four Santa Inês crossbred ewes were distributed in a completely randomized design in a factorial 4 x 2 x 2 - four weaning ages (56, 70, 84 and 98 days), sex and feeding management of the offspring, each treatment with four replications. The ewes were managed with the offsprings at the foot in 14 paddocks of 1,5 or 2,0 hectares, formed with Brachiaria humidícola. The offsprings were born by single birth, of Santa Inês pure of origin (PO). After the weaning of all groups, sixty-four lambs (32 males and 32 females) were randomly assigned in individual stalls and confined for 30 days. The comparison of the parameters was carried out by the adjustment of the simple linear regression model. It was verified over time addiction of the offspring feed management of + 3,7% (P<0,05) for the calving intervals and of + 1,4% (P<0,05) for the service period. There was increasing linear effect (P<0,05) of weaning age on calving intervals and service period. It was verified over time, addiction of the offspring sex of + 2,0% (P<0,05) for the calving intervals and + 0,8% (P<0,05) for the ewes service period. It was observed over time addiction of sex of + 35,2% and + 36,9% (P<0,05), respectively, for the daily weight gain of lambs from birth to weaning and post-weaning in feedlot. The supplementation of the offspring in private feeder and the anticipation of the weaning age reduce the calving intervals and the service period of woolless ewes in Brachiaria humidicula pasture. The offspring sex is the source of variation in the analysis of reproductive efficiency of ewe's mat rices and in the weight gain of Santa Inês crossbred lambs from birth to weaning, and after weaning.

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PURPOSE: To evaluate the adequacy of gestational weight gain and to determine its association with maternal socioeconomic, demographic and nutritional factors and health care, to estimate the prevalence of low birth weight, macrosomia, preterm birth and cesarean delivery and to identify the association of these outcomes with the adequacy of weight gain. METHODS: A cross-sectional study was performed in 2009/2010 to obtain socioeconomic, demographic, nutritional, dietary and physical activity data of pregnant women assisted by primary health care in a municipality of the state of São Paulo. Subsequently, data were collected from the medical records to evaluate gestational weight gain. Type of delivery, birth weight and gestational age at delivery were obtained from the Livebirths Information System. Gestational weight gain was evaluated according to the recommendations of the Institute of Medicine (2009). Associations were investigated by comparing the frequencies and by logistic regression, with excessive weight gain (yes, no) and insufficient gain (yes, no) being the dependent variables. RESULTS: A total of 212 pregnant women were studied: 50.5% had excessive gain and 19.8% insufficient weight gain. Only prepregnancy nutritional status was associated with adequacy of weight gain: compared with normal weight, prepregnancy overweight women had a four-fold higher chance to gain excessive weight (OR 4.66, 95%CI 2.19-9.4). Nearly a third of babies were born by caesarian section, 5.7% were premature, 7.1% were underweight and 4.7% were macrosomic. There was no association between adequacy of gestational weight gain and these outcomes. CONCLUSION: The proportion of inadequate gestational weight gain was high. Overweight pregnant women have a four-fold higher chance to gain excessive weight, and priority should be given to actions promoting adequate prenatal weight gain.

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Pós-graduação em Agronomia (Produção Vegetal) - FCAV

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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

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The objective of this study was evaluate the effects of immunocastration on body weight gain, carcass characteristics and meat quality of Nellore beef cattle. Eighty Nellore beef cattle, with initial body weight of 357 +/- 8.63 kg, were placed in feedlots and distributed in two treatments (40 animals per treatments) as follow: one - non-vaccinated bulls and two - immunocastrated bulls (Bopriva (R), Pfizer Animal Health). The animals placed on treatment two were vaccinated in two doses, first application 30 days before they arrive on the feedlots and second on the day they arrive on feedlots. After 67 days of experimental period, was calculated the daily gain of live weight in kg/day of the 80 animals and selected 20 animals from each treatment for the slaughter and carcass evaluations, and ten from each group for the meat analyzes. The data were submitted to analysis of variance. Immunocastrated animals showed lower daily weight gain, hot carcass weight, carcass yield, pH, leg thickness, muscle depth, loin muscle area, carcass muscle percentage, shear force and moisture. However, this animals had higher concentration of lactate and cortisol blood, chest depth, fat thickness, finishing degree, a *, b * and c*, liquid loss in thawing process, myofibrillar fragmentation index and ether extract of meat when compared to non-vaccinated bulss. The immunocastration (Bopriva (R)) is an alternative for improving the quality of meat by the higher fat deposition and by the reduction of the shear force of the meat when compared to non-vaccinated bulls.

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Pós-graduação em Desenvolvimento Humano e Tecnologias - IBRC

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The objective was evaluate the phenotypic correlations among visual scores, performance traits and scrotal circumference of the polled Nelore cattle performance tests. Animals of the fifth, sixth, seventh official performance test in pasture were analysed. At the end of each test period the following measures were taken: adjusted weight to 550 days, gain weight, visual score (body structure; precocity and muscle) and scrotal circumference. The musculature, precocity and body structure showed significant positive correlations (P <0.01) with gain weight, adjusted average daily weight to 550 days, scrotal circumference and chest circumference. However, only hip height showed a significant positive correlation with muscularity. Therefore, in polled Nelore cattle, regards to performance test in pasture, the visual scores show positive correlation with the performance traits and scrotal circumference, showing that visual scores is important tool in the polled Nelore Cattle performance test.

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O objetivo deste estudo foi avaliar a evolução ponderal pós-gastrostomia em crianças com paralisia cerebral tipo tetra-plegia espástica. Mediante análise de variância para dados pareados, 33 crianças foram avaliadas nos momentos: 6 meses antes, à gastrostomia, 6 meses e 18-24 meses após. A mediana da idade à gastrostomia foi de 48,1 meses. 75,8% eram do gênero masculino. Houve ganho ponderal na comparação dos momentos: 6 meses antes, à gastrostomia e 6 meses após em relação a 18-24 meses após (p<0,001). Utilizando-se referencial específico de crescimento para paralisia cerebral, à gastrostomia e 18-24 meses após as crianças apresentavam percentil ≤10 (respectivamente, 52,4% e 33,3%) e >10 (respectivamente, 47,6% e 66,6%). As medianas do escore z do peso foram: 6 meses antes (-5,1), à gastrostomia (-5,0), 6 meses após (-4,7) e 18-24 meses após (-4,4), não havendo diferença significativa. Escore z ≤-2 foi observado em 75% das crianças 6 meses antes, 81,8% à gastrostomia, 75% 6 meses após e 64,5% 18-24 meses após. Na análise da mediana da idade, para as crianças com idade ≤ 48,1 meses não houve diferenças no escore z nos diferentes momentos. Para aquelas com idade >48,1 meses houve diferença significativa entre 6 meses antes e 18-24 meses após. Considerando as crianças mais (z≤-5,0) e menos (z>-5,0) comprometidas nutricionalmente, houve diferença significativa entre as mais comprometidas (p = 0,04) na comparação entre gastrostomia com 6 meses após e com 18-24 meses após. Este estudo demonstrou que 18-24 meses após a gastrostomia houve aumento ponderal para todas as crianças e aumento do escore z do peso naquelas com mais idade e mais comprometidas nutricionalmente.