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Search Results: 1 - 10 of 329910 matches for " Carrijo S?nia Mara "
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Description and comparison of growth parameters in Chianina and Nelore cattle breeds
Carrijo, Snia Mara;Duarte, Francisco A. Moura;
Genetics and Molecular Biology , 1999, DOI: 10.1590/S1415-47571999000200009
Abstract: weight data from birth to 18 months of age of nelore and chianina, both meat-producing cattle breeds, were analyzed. data were corrected for significant effects of environment and utilized to estimate genetic parameters through the non-linear von bertalanffy model. average values found for growth parameters in nelore were: mature weight (a), 312.87 kg; integration constant (b), 0.49; maturity rate (k), 0.13; age at inflection point (t(i)), 3.29 months; weight at inflection point (p(i)), 92.70 kg, and maturity interval (1/k), 8.04 months. for the chianina animals, the values were 751.38 kg, 0.59, 0.10, 6.64 months, 222.63 kg, and 10.98 months, respectively. nelore animals exhibited higher maturity rate, smaller maturity intervals, reaching mature weights younger than chianina animals, although lighter than these at maturity. heritability estimates presented low values, mainly for mature weight (0.093 and 0.212), age at inflection point (0.062 and 0.202), weight at inflection point (0.093 and 0.212) and maturity interval (0.057 and 0.309) (for nelore and chianina, respectively). the parameters mature weight and weight at inflection point presented positive genetic correlations with weights at different ages and with similar trends, increasing as age increased, in both breeds. considering the development period analyzed, from birth to 18 months of age, the parameter maturity rate and the weights at different ages showed genetic correlations which increased until the weight at 150 and 205 days in nelore and chianina, respectively, and decreased from these ages on, and the genetic correlations among the parameter maturity interval and the weights at different ages were negative. they decreased until the weights at 150 and 205 days, respectively, in nelore and chianina, and increased from these ages on.
Description and comparison of growth parameters in Chianina and Nelore cattle breeds
Carrijo Snia Mara,Duarte Francisco A. Moura
Genetics and Molecular Biology , 1999,
Abstract: Weight data from birth to 18 months of age of Nelore and Chianina, both meat-producing cattle breeds, were analyzed. Data were corrected for significant effects of environment and utilized to estimate genetic parameters through the non-linear von Bertalanffy model. Average values found for growth parameters in Nelore were: mature weight (A), 312.87 kg; integration constant (B), 0.49; maturity rate (k), 0.13; age at inflection point (T(I)), 3.29 months; weight at inflection point (P(I)), 92.70 kg, and maturity interval (1/k), 8.04 months. For the Chianina animals, the values were 751.38 kg, 0.59, 0.10, 6.64 months, 222.63 kg, and 10.98 months, respectively. Nelore animals exhibited higher maturity rate, smaller maturity intervals, reaching mature weights younger than Chianina animals, although lighter than these at maturity. Heritability estimates presented low values, mainly for mature weight (0.093 and 0.212), age at inflection point (0.062 and 0.202), weight at inflection point (0.093 and 0.212) and maturity interval (0.057 and 0.309) (for Nelore and Chianina, respectively). The parameters mature weight and weight at inflection point presented positive genetic correlations with weights at different ages and with similar trends, increasing as age increased, in both breeds. Considering the development period analyzed, from birth to 18 months of age, the parameter maturity rate and the weights at different ages showed genetic correlations which increased until the weight at 150 and 205 days in Nelore and Chianina, respectively, and decreased from these ages on, and the genetic correlations among the parameter maturity interval and the weights at different ages were negative. They decreased until the weights at 150 and 205 days, respectively, in Nelore and Chianina, and increased from these ages on.
Association of PIT1 genotypes with growth traits in Canchim cattle
Carrijo, Snia Mara;Alencar, Maurício Mello de;Toral, Fábio Luiz Buranelo;Regitano, Luciana Correia de Almeida;
Scientia Agricola , 2008, DOI: 10.1590/S0103-90162008000200002
Abstract: use of genetic markers can aid on the identification of animals with highest breeding values in beef cattle. the pit1 gene codes for the pit-1 transcription factor is essential for the activation of prolactin, growth hormone and pit1 genes. this research is an investigation of the effect of pit1-hinfi polymorphism on growth traits of 509 canchim animals, from two lineages, gg1 and gg2. pit1 genotypes were identified through pcr-rflp. genotype effect on phenotypic values for birth weight (bw), standardized weaning weight (w240), weight at 12 months of age (w365), and the average daily weight gain from birth to weaning (agbw), and from weaning to 12 months of age (agw12) were analyzed by the least squares method. effects of the interaction between the animal's genetic group and pit1 genotype for w240, agbw and agw12 were observed (p < 0.05). differences between means of hinfi (-/-), hinfi (+/+) and hinfi (+/-) genotypes for w240 and agbw were observed in gg2 (p < 0.05), revealing superiority of (-/-) genotype for those traits. means for genotypes (+/+) and (+/-) for w240 and agbw, did not differ from one another, suggesting a dominance effect of the hinfi (+) allele. the hinfi (-) allele had a favorable effect on w240 and agbw in gg2, when present in homozygosis. the difference between pit1 behavior observed in the two genetic groups may suggest the action of a quantitative trait locus linked to pit1, segregating only in gg2 population.
Cyanic acid, Phytic acid, total tannin and aflatoxin contents of a Brazilian (Natal) multimistura preparation
C?MARA, Francisca Snia;MADRUGA, Marta Suely;
Revista de Nutri??o , 2001, DOI: 10.1590/S1415-52732001000100005
Abstract: the utilization of a "multimistura" as food supplement, in nutritional improvement programs for the low-income population in brazil, represents a low-cost and easy-to-use food preparation alternative, presentig reasonable nutritive value and satisfying local taste preferences. this is based on the fact that the "multimistura" is made up of non-conventional ingredients/foods and of agroindustrial by-products, rich in different nutrients. this paper was designed to determine some toxic and/or antinutritional factors of a "multimistura" utilized as food supplement in institutional programs to prevent malnutrition by the department of welfare and social affairs of the city of natal, rn. the product studied had the following formulation: 30% of wheat bran; 30% of wheat flour; 30% of corn meal; 3% of powder from cassava leaves; 4% of pumpkin seeds powder; and 3% of eggshell powder. the analysis of the main toxic and/or antinutritional factors showed very low concentrations of phytates and tannins and no detectable levels of aflatoxin and cyanic acid.
Cyanic acid, Phytic acid, total tannin and aflatoxin contents of a Brazilian (Natal) multimistura preparation
C?MARA Francisca Snia,MADRUGA Marta Suely
Revista de Nutri??o , 2001,
Abstract: The utilization of a "multimistura" as food supplement, in nutritional improvement programs for the low-income population in Brazil, represents a low-cost and easy-to-use food preparation alternative, presentig reasonable nutritive value and satisfying local taste preferences. This is based on the fact that the "multimistura" is made up of non-conventional ingredients/foods and of agroindustrial by-products, rich in different nutrients. This paper was designed to determine some toxic and/or antinutritional factors of a "Multimistura" utilized as food supplement in institutional programs to prevent malnutrition by the Department of Welfare and Social Affairs of the City of Natal, RN. The product studied had the following formulation: 30% of wheat bran; 30% of wheat flour; 30% of corn meal; 3% of powder from cassava leaves; 4% of pumpkin seeds powder; and 3% of eggshell powder. The analysis of the main toxic and/or antinutritional factors showed very low concentrations of phytates and tannins and no detectable levels of aflatoxin and cyanic acid.
Desvelando o cotidiano do adolescente hospitalizado
Almeida, Inez Silva de;Rodrigues, Benedita Maria do R. D.;Sim?es, Snia Mara Faria;
Revista Brasileira de Enfermagem , 2005, DOI: 10.1590/S0034-71672005000200003
Abstract: my experience in the adolescence was marked by the hospitalization process. currently, as a nursing professional that take care of hospitalized young, there arose inquietudes that originated this study. the investigation object was the significance of the hospitalization in the adolescence, having as objective to understand this significance for the hospitalized adolescent. it was used the qualitative approach in the light of the martin heidegger′s existential phenomenology. the setting was a specific internment unit for adolescents and the deponents were hospitalized young. this study made possible to understand that the adolescent unveiled himself as a being-with and understand of himself as a being in the world thrown to the death. the research pointed to the need of a real implementation of the public policies addressed to the hospitalized adolescent.
Práticas de alimenta??o complementar no primeiro ano de vida e fatores associados
Silva, Ligia Mara Parreira;Venancio, Snia Isoyama;Marchioni, Dirce Maria Lobo;
Revista de Nutri??o , 2010, DOI: 10.1590/S1415-52732010000600005
Abstract: objective: this study investigated the complementary feeding practices and the factors associated with the appropriate timing of complementary feeding in children under one year of age. methods: the parents or caregivers of 1,176 children who attended the national immunization campaign in s?o bernardo do campo, southeastern brazil, in 2003 were interviewed to determine what the child was fed in the 24 hours prior to the interview. the prevalence of complementary food intake was estimated by a logistic regression model adjusted for age; the medians of the introduction of foods by survival analysis; and the factors associated with timely complementary feeding by poisson regression with robust adjustment of variance and hierarchical variable selection. results: complementary foods were introduced early: in the fourth month of age, nearly one-third of the children were already consuming fruit juices and one-fourth were consuming soft foods, fruits or soups. they were less likely to eat the same food as the family at eight months of age (48%). the median age for fruit intake was 266 days (95%ci 256-275), for vegetable soup was 258 days (95%ci 250-264) and for family meals 292 days (95%ci 287-303). factors associated with the intake of solid foods before age six months were: healthcare system, maternal age, maternal employment and use of pacifiers. conclusion: the early consumption of solid foods, a potential risk for the child's health and for the development of chronic diseases in adulthood, evidences the need for programmatic actions to reverse this situation.
Análisis de la acción del ácido cítrico en la remoción del Ligamento periodontal necrosado de dientes de ratón
Poi,Wilson Roberto; Greves Giovanini,Ellen; Estevam Simonato,Luciana; Mara Manfrin,Thaís; Esgaib Kayatt,Fernando; Regina Panzarini,Snia;
Acta Odontológica Venezolana , 2007,
Abstract: the maintenance of the periodontal ligament without vitality on the root surface can influence in the process of repair in the dental replantation, therefore it can be substituted by bone tissue or to give beginning to a process of inflammatory resorption. therefore, many forms of removal of this ligament have been studied. it is intention of this work to evaluate, by means of histological study, the results of the treatment of the tooth surface in dental extraction and left in environment for 6 hours. for the accomplishment of the experiment 15 mouse, divided in three groups will be used, with 5 teeth in each: group i, salt solution per three minutes; group ii, acid citric (ph 1,0) per three minutes e; group iii, friction of the root surface with acid humidified barren gauze with citric (ph 1,0) per one minute. after the laboratorial processing of routine the cuts had been submitted to the qualitative and quantitative analysis (software imagelab - diracom 3). in all the groups had been observed remaining of the periodontal ligament in all palatal extension of the root s surface. group iii showed to greater tissue area with statistic significant difference (p > 0.001). it was possible to conclude that acid the citric one was not capable to after remove the rat periodontal tooth ligament necrosis six hours of drying, in none of the forms of used application.
Morbidades, capacidade funcional e qualidade de vida de mulheres idosas
Soares, Maurícia Brochado Oliveira;Tavares, Darlene Mara dos Santos;Dias, Flávia Aparecida;Diniz, Marina Aleixo;Geib, Snia;
Escola Anna Nery , 2010, DOI: 10.1590/S1414-81452010000400008
Abstract: the objectives were to compare between the age groups: marital status, education, income, number of morbidities and functional disability scores of a quality of life from elderly women. this is a population-based study, sectional, applied to 1339 elderly women.we used the older americans resources and services structured instruments, whoqol-bref and whoqol-old. to the comparison among the categorical variables we used chi-square for the numerical test, anova-f, tamhane and bonferroni's according to the homogeneity of variances (p <0.05). the comparison among groups showed that the higher age, the lower is the educational level and larger number of functional disability. the highest age group was associated to lower scores of quality of life in the physical domain and operational facets of the senses and social participation. it is necessary to analyze the characteristics of elderly women considering the specificities of different ages.
Supera??o da dormência de sementes de umbuzeiro (Spondias tuberosa, Arr. Cam.) utilizando diferentes métodos
Lopes, Paulo Sérgio Nascimento;Magalh?es, Hélida Mara;Gomes, Janaína Gon?alves;Brand?o Júnior, Delacyr da Silva;Araújo, Virgínia Dutra de;
Revista Brasileira de Fruticultura , 2009, DOI: 10.1590/S0100-29452009000300034
Abstract: several fruits of native species of semi-arid region have great potential for commercialization, and among them there is the spondias tuberosa. however, commercial cultivation of this species is limited by the difficulty of obtaining seedlings mainly depending on the dormancy of its seeds. thus, the purpose of this study was to evaluate the seeds overcoming dormancy methods of spondias tuberosa to promote an increase in the rates of germination, uniformity and vigor of the seedlings. two experiments were independently conducted. the treatments of the first experiments were: test, immersion of the seeds in water for 24 hours, immersion of the seeds in solution of gibberellic acid 1000 mg / l for 24 hours, scarification of seeds with sulfuric acid pa for 10 minutes and mechanical scarification of seeds. in the second experiment, the treatments consisted of planting the seeds with 0, 30, 60, 90, 120, 150, 180 and 210 days of storage in paper bags under laboratory conditions, at an average temperature of 22.5° c and relative humidity of 65%. in the first study it was found that there was a significant effect of the methods to seeds overcoming dormancy, concluding that the mechanical scarification is the best treatment, with an average germination rate in 60 days after planting 26.6%. in the second experiment, storage positively influenced the germination of seeds and seedlings vigor. the best results for uniformity and germination percentage (83%) were obtained between 120 and 210 days of seeds storage, while for the length and fresh weight of root, between 120 and 150 days.
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