Simetria discreta 'S IND. 3' como uma possível extensão para o Modelo Padrão

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Momento de dipolo elétrico do nêutron no modelo 3-3-1

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Número e peso de perfilhos no pasto de capim-braquiária sob lotação contínua

The experiment was conducted to study the relationship between the number and weight of tiller categories in Brachiaria decumbens cv. Basilisk pasture managed under continuous stocking with cattle. The pasture was managed with an average height of about 25 cm. Plants of four different heights (10, 20, 30 and 40 cm) were evaluated by means of the randomized block design with two replications. The number of vegetative tillers, both live and total, reduced linearly according to the plant height. The number of reproductive tillers increased linearly according to pasture plant height (from 8 to 84 tillers m-2 when comparing plants 10 to 40 cm high). Vegetative and reproductive tiller weight increased linearly according to pasture plant height. Vegetative tiller weight (0.316 g average) was lower than the reproductive tiller weight (0.401 g average). A linear and negative relationship was found between the number and weight of the vegetative tillers, whereas a linear and positive one was found for the reproductive tillers. There are fewer vegetative tillers, and a greater number of reproductive and dead tillers in places with tall plants. At the places with high B. decumbens plants, tillers are heavier.

Biological aspects of Harmonia axyridis in comparison with Cycloneda sanguinea and Hippodamia convergens

The objective of this work was to evaluate the development, survival, reproductive capacity, and longevity of the Asian ladybug Harmonia axyridis in comparison with Cycloneda sanguinea and Hippodamia convergens. Coccinellid larvae and adults were fed daily with Schizaphis graminum. Ten couples of each species were isolated for evaluation of the adult phase. The duration of the larval stage of H. axyridis is the longest (10.2 days) and its adults are the heaviest (29.7 mg) compared with C. sanguinea and H. convergens. The three species showed similar percentages of survival during the developmental stages. An average of 82% of C. sanguinea, H. axyridis, and H. convergens larvae reached adulthood, which indicates that temperature (25°C) and the offered prey are favorable to coccinellid development. Harmonia axyridis produces a higher total number of eggs per female (1,029.2) than the other evaluated species. However, H. axyridis, which lives for an average of 147.2 days, does not show a significantly greater longevity than C. sanguinea (87.2 days) and H. convergens (134.3 days).

Deposição de nutrientes na carcaça de girinos de rã-touro

The objective of this work was to determine nutrient deposition on the carcass of bullfrog (Lithobates catesbeianus) tadpoles using a nonlinear model. A total of 2,700 tadpoles with an average weight of 0.039 g were used. Commercial ground feed containing 55% crude protein was offered ad libitum. The animals were weighed and evaluated every ten days for analysis of crude protein, ether extract, water, and mineral salt contents. The parameters of the Gompertz model were estimated by the modified Gauss-Newton method, and the deposition rates (g per day) over time were calculated by the resulting equation. The values found for the parameters of the Gompertz equation, used to describe nutrient deposition on tadpole carcass, showed biological interpretation. Maximum deposition rate (t*) was observed on the 36.2331th day for protein, on the 37.1420th day for water, on the 35.2971th day for mineral salt, and on the 41.3547th day for fat. Nutrient intake from the diet is higher than the deposition rate on the tadpole carcass.

Efeito da desmama precoce na eficiência reprodutiva de vacas Guzerá

The early weaning method is an alternative to increase the body weight of calves, since it is based on the total or temporary interruption of suckling by animals, in an attempt to faster develop the rumen of those receiving milk ad libitum. Thus, this study was conducted in Selvíria, Mato Grosso do Sul State, Brazil, in order to evaluate the weight gain of calves subjected to two weaning methods (conventional, i.e., calves were kept with cows, and controlled, where calves had access to suckling for one hour per day), as well as body condition and pregnancy rate of Guzerá primiparous and multiparous cows. Once a month, the animals were weighed, in order to measure their weight gain. At the birth and definite weaning of calves, the cows had their body condition evaluated, as well as their pregnancy rate, at the end of weaning. It was found that the controlled weaning method showed no significant difference, however, it becomes feasible in the beef cattle chain, since it can reduce the delivering intervals, due to the improved body condition of cows, especially in times of drought, when there is low food availability. An increase in the weight of calves at weaning was also observed for primiparous cows.

Níquel em solo e plantas de milho cultivadas em área tratada com lodo de esgoto durante 15 anos consecutivos

Pós-graduação em Agronomia (Ciência do Solo) - FCAV

Categorias, níveis e causas de resistência de genótipos de feijoeiro a Zabrotes subfasciatus (Boheman, 1833) (Coleoptera: Bruchidae)

Pós-graduação em Agronomia (Entomologia Agrícola) - FCAV

Análise de parâmetros espermáticos e fertilidade de ratos Wistar expostos ao interferon alfa

Pós-graduação em Biologia Geral e Aplicada - IBB

Plasma rico em plaquetas empregado na cirurgia reconstrutiva em coelhos (Oryctolagus cuniculus): avaliação da exequibilidade da técnica, achados macroscópicos e histopatológicos

Pós-graduação em Cirurgia Veterinária - FCAV

Atividade antidiabética, em modelo in vivo, da curcumina administrada em suspensão de iogurte na ausência e na presença de piperina

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Aplicação de corretivos de acidez do solo na implantação do sistema plantio direto

Pós-graduação em Agronomia (Agricultura) - FCA

Search for narrow resonances and quantum black holes in inclusive and b-tagged dijet mass spectra from pp collisions at root s=7 TeV

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Identification of b-quark jets with the CMS experiment

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Search for baryon number violation in top-quark decays

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)