Qualidade fisiológica de sementes de Brachiaria e avaliação da produtividade de massa seca em diferentes sistemas de integração lavoura-pecuária sob irrigação

The speed and magnitude of tropical pastures expansion in Brazil are related to the availability of quality seeds. This research aimed to evaluate the physiological quality of seeds of two Brachiaria species submitted to germination and viability tests and also estimate, for both species, the fresh and dry mass yield, under different irrigated crop-livestock integration systems. For field analysis, the experimental design was a randomized complete block, in subplots, with four intercrops in the plot (Brachiaria brizantha cv. Marandu and Brachiaria ruziziensis simultaneously established with corn and nitrogen fertilization coverage), and four forage cutting times, in the winter/spring season, in subplots, with four replications. In the laboratory, the experimental design was completely randomized, with four replications per treatment/test. The germination and viability tests indicated that B. brizantha seeds showed higher physiological quality, when compared with B. ruziziensis, while the tetrazolium test and germinated seedlings characteristics were similar. The B. ruziziensis, simultaneously intercropped with corn, was the less viable intercrop, due to the lower fresh and dry mass yield and litter deposition on the soil surface. In general, the pasture formation for the second season cultivation, intercropped with corn, was an excellent alternative for crop-livestock integration under a no-tillage system.

Massa seca e composição bromatológica de quatro espécies de braquiárias semeadas na linha ou a lanço, em consórcio com milho no sistema plantio direto na palha

The objective of this research was to evaluate the dry mass yield and chemical composition of four Brachiaria species in different options for sowing, exclusively or in intercrop with corn crop, under a no-tillage system. The experiment was carried out during the growing seasons of 2006 at FEPE (FE/Unesp, Ilha Solteira Campus) located in Selvíria, Mato Grosso do Sul State, Brazil. The soil of the experimental area was classified as distroferric Red Latosol (Oxisol). The experimental design was in randomized blocks, in a factorial scheme (4 × 4), with five replications. The treatments consisted of four Brachiaria species (Brachiaria brizantha cv. Marandu, Brachiaria decumbens, Brachiaria ruziziensis and Mulato II grass) grown in rows and spread on total area, exclusively or intercropped simultaneously with corn crop sowing. The study evaluated the dry mass yield and total digestible nutrients, crude protein, ash, neutral detergent fiber, acid detergent fiber, hemicelluloses, cellulose and lignin content of forage. The spread on total area intercrop of forages with corn crop proved to be viable by presenting similar dry mass yield to exclusive sowing arrangements, conversely to what happened with intercrop in row of corn crop, which decreased such yield. Brachiaria ruziziensis showed superior chemical composition and the intercrops increased energy and crude protein contents, and decreased cell wall components.

Determinação da massa seca, teor de nutrientes e cobertura do solo de espécies semeadas no outono-inverno

Culture options for the autumn-winter season are a major problem for production systems under low rainfall. The aim of this study was to evaluate the effect of the sowing season on dry matter yield, nutrient content of the shoot and soil covering percentage of coverage plants on the soil on the intercrop: grain sorghum, rattlepods, pearl millet brachiaria grass and an area with weeds (fallow). The experiment was conducted under field conditions on an Oxisol (Haplustox), clay texture, in Selvíria, Mato Grosso do Sul, Brazil. The experimental design was a randomized block design with eight replications, two sowing seasons and five coverage treatments. When the sorghum culture of the first sowing season reached the harvest stage, the dry matter yield on the other treatments was evaluated. Results showed that sowing in March results in higher dry mass yield and higher soil coverage percentage in the studied species. In the first sowing season, Brachiaria brizantha presents higher dry matter yield and macronutrients extraction.

Nitrogênio, fósforo e potássio na produção de massa seca e no acúmulo de nutrientes em mudas de limeira ácida 'tahiti'

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Perda de carga em mangueiras gotejadoras novas e usadas

This paper aims to determine the importance of emitter ́s local head loss in the hydraulic design of hose drip lines, as well as comparing the result of equations that calculate the local head loss; besides verifying the influence of iron precipitated at the hose head loss made in Brazil. The result found that localized head loss represents 23% of the total head loss; the equations showed significant results and the total head loss increased in an average of 20% after the irrigation system was used with water rich in iron.

Composição química e digestibilidade in vitro da massa seca de cana-de-açúcar acrescida de ureia em diferentes tempos de estocagem

The objective of this research was to evaluate the chemical composition and in vitro dry mass (DM) digestibility of sugar cane with urea, maintained in the shade and sun, at different storage times. The utilized design was the completely randomized in a factorial scheme 6x2, that is, six storage times after the mixing (0; 2; 4; 6; 12 and 24 hours) and two storage location (shade and sun), with three replicates. The sugarcane utilized presented 12 months of development and was disintegrated for application of mixture (nine parts of urea for one of ammonium sulfate) to 1.0kg/100.0kg of fresh sugarcane. The samples taken with 12 hours of storage indicated that was an increase in the content of DM and crude protein (CP) of sugar cane compared to the moment of the mixture (307.6 vs. 294.2g/kg of DM and 115.2 vs. 99.3 g/kg of DM, respectively), and the smaller content of neutral detergent fiber (NDF) was observed around of 12 hours of storage (465.0g/kg of DM). The coefficients of in vitro dry mass digestibility (IVDMD) ranged of 0.558 to 0.612 in the times 0 and 12 hours, respectively. The length of storage changes the chemical composition of sugar cane plus urea. The storage location changes the dry mass content and pH values.

Unidade amostral para determinação de massa média de frutos em lichieira em sistema orgânico e convencional

The experimental unit of measurement is a suitable technique to estimate the average character in evaluation, and experimentation should be well understood and executed, because the precision characterizes the quality of the inferences of the results. This research aimed to analyze the possibility to obtaining the quantity of fruit required for sampling of lychee plants, to determining the average mass of the fruits, with less sampling error. One hundred fruits were collected, in a hectare, in two cropping systems, conventional and organic, being one fruit per plant. From the data of fruit mass was used the Excel® to calculate the average fruit mass and number of fruits samples needed to represent the area of the producer. The results show that to achieve a sampling error of 10% for determining the average mass of fruit, 400 fruits should be collected for organic system and 370 for the conventional, while for 20% sampling error, it is necessary to collect 250 fruits per hectare in organic system and 220 in the conventional.

Perda e luto: Vivências de mulheres que interromperam a gestação por malformação fetal letal

The scope of this study was to investigate the grieving experiences of women who terminated pregnancies under judicial authorization, due to life-incompatible fetal malformation. Ten women attended in the Fetal Medicine Department of Botucatu Clinical Hospital participated in the study. Data collection was conducted by means of semi-structured interviews forty days after termination. The interviews were recorded and transcribed in full, with the data analyzed from the thematic content analysis perspective. The results revealed that the mothers sought explanations and meanings for the loss, with religious responses and self-blame being very frequent. The reports were marked by feelings of sadness, longing and sensations of emptiness due to the loss of the child, revealing the need of the mothers to dwell on the issue. The mothers were and continued to be linked to their children; the termination of the pregnancy, although being a choice to minimize the pain of an inevitable loss, did not spare the women from experiences of great suffering. The study includes input for the discussion and planning of health approaches and care for women who terminate their pregnancy due to lethal fetal malformation, by means of judicial authorization.

Produção do arroz em função da adubação com silício e nitrogênio no sistema de sequeiro e irrigado por aspersão

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Efeito de treinamentos resistidos sobre marcadores inflamatórios, força e massa magra corporal de pacientes com doença pulmonar obstrutiva crônica

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Instabilidade postural em indivíduos obesos com deficiência intelectual

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Efeitos da suplementação com L-Carnitina sobre a fadiga muscular do gastrocnêmio e a composição corporal de ratos tratados com dieta hiperlipídica

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Cultivo e caracterização de células-tronco embrionárias de bovinos

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Perfil audiológico e genético de pacientes com perda auditiva sensorioneural não sindrônica atendidos no Hospital das Clínicas da Faculdade de Medicina de Botucatu-Universidade Estadual Paulista

Pós-graduação em Bases Gerais da Cirurgia - FMB

Efeito da radiação solar e temperatura na emissão de metano associado à produção e perda de calor em bovinos

Pós-graduação em Zootecnia - FCAV