La juventud rural del Cono Sur: agentes de cambio y desarrollo, para la superación de la pobreza rural

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Impactos diferenciados de las reformas sobre el agro mexicano: productos, regiones y agentes

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Agentes tróficos na dieta de leitões desmamados sobre a atividade das enzimas digestivas e o desempenho

It was evaluated the effect of the addition of glutamine, polyunsaturated fatty acids or cellular wall of yeast to the diet of weaned pigs on the activity of the pancreatic enzymes (lipase, amylase and trypsin) and the intestinal mucous membrane (dipeptidase, sucrase and maltase) and on the performance. Forty-five weaned pigs were used and distributed in a randomized block design, in factorial outline, with four diets (T1 - basal diet (BD); T2 - BR + 1% glutamine; T3 - BD + 0,2% cellular wall of yeast; T4 - BD + 5% fish oil) and two slaughter ages (seven and 14 days post weaning). The performance was measured in the first two weeks post-weaning. The addition of 1% glutamine in the diet of pigs increased the specific and total activity of the amylase, and total activity of the trypsin in the second week post weaning. The others supplements not change the activity of the digestive enzymes in the pigs. Also an increase was observed in the total activity of the lipase, and specific activity of the trypsin and maltase in function of the age post-weaning. In general, the activities of the digestive enzymes were correlated positively, except for the dipeptidase that was not correlated with any other enzyme. Positive correlation was observed between weight gain and activity of the lipase and of the amylase. The supplements included in the diet not influence the performance of weaned pigs.

Agentes del "desarrollo"

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Seleção de agentes alternativos ao ágar para propagação de plântulas de Cattleya loddigesii Lindley (Orchidaceae)

The aim of this study was to evaluate the in vitro growth of Cattleya loddigesii in alternative agents to agar with starch and physical matrix with acclimatization of regenerated plants. Protocorms with 90 days after sowing (0.5 cm of length) were subcultured in 1/2 MS culture medium among the treatments consisting of: agar 7 g L-1 (T1, which corresponds the control), agar 3,5 g L-1 with cassava starch 30 g L-1 (T2), cassava starch 60 g L-1 (T3), cotton fiber (T4) and chopped polyurethane foam (T5). Plantlets were retained in these treatments for over 150 days, and at the end of in vitro culture, were analyzed by their biometric data and acclimatized in a greenhouse during 120 days and evaluated the survival and relative growth rate (RGR). The substrate comprising of chopped polyurethane foam (T5) showed greater efficiency for growth in vitro and also increased survival rate, while substrate cassava starch (T3) provided delay for plantlet growth. Therefore, chopped polyurethane foam is recommended because of low cost and suitable characteristics for the propagation of Cattleya loddigesii.

Desarrollo: imagenes, conceptos, criterios, agentes, opciones

Documento en inglés ingresado en Biblioteca (88654)

Agentes extrasectoriales y transformaciones recientes en el agro argentino

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Agentes del "desarrollo"

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El papel de los agentes en las políticas agrícolas: intenciones y realidad

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Pesquisa e desenvovimento de novos materiais microporosos e mesoporosos para uso em ressonância magnética nuclear por imagem como agentes de contraste

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Atividade do micronutriente selênio na cinética de proliferação celular, citotoxicidade, indução de apoptose e expressão dos genes CASP9, BCL-XL e APC em células HT29

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Prospecção das interações mastoparano-membrana em proteolipossomos como modelo para o desenvolvimento racional de novos agentes antimicrobianos

Pós-graduação em Ciências Biológicas (Biologia Celular e Molecular) - IBRC

Byrsonima ssp: estudo anatômico e histoquímico foliar, atividade antimicobacteriana e citotoxicidade de extratos e seus derivados -

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Avaliação da atividade tripanocida do ácido gálico e seus ésteres contra formas epimastigotas de Trypanosoma cruzi: Rogério Andréo. -

Pós-graduação em Biotecnologia - IQ

Condições higiênico-sanitárias de alimentos prontos para o consumo servidos em escolas públicas de um município da região noroeste do Estado de São Paulo e perfil de sensibilidade das cepas de Staphylococcus aureus e Escherichia coli isoladas frente a agentes antimicrobianos

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)