Valor nutritivo de gramíneas do gênero Cynodon consorciadas com amendoim forrageiro / Nutritive value of grasses of genus Cynodon mixed with forage peanut

O objetivo do presente estudo foi avaliar o valor nutritivo do consórcio forrageiro entre gramíneas do gênero Cynodon (cv. tifton 85 ou coastcross) com Arachis pintoi (amendoim forrageiro). O experimento foi conduzido na Universidade Tecnológica Federal do Paraná, Câmpus Dois Vizinhos, em área de aproximadamente 3000m2. O delineamento experimental foi de blocos ao acaso, com quatro tratamentos e três repetições. Os tratamentos foram: tifton 85 e coastcross em cultivo estreme, tifton 85 + AF e coastcross + AF. Foram avaliados os teores de PB, FDN, FDA, DIVMS, MM e MS das lâminas foliares, colmo+bainha, amendoim forrageiro e da MF disponível da simulação de pastejo. Foi observado que a coastcross tem menor teor de fibra, independentemente do tratamento. O avanço das estações do ano proporcionou menores valores de PB e DIVMS em todos os tratamentos. A simulação de pastejo demonstrou que a tifton 85 tem maiores teores de MS, assim como valores inferiores são encontrados para os consórcios. Quando consorciado com as gramíneas, o amendoim forrageiro reduziu os compostos fibrosos na pastagem, acrescentando maiores teores de PB em pastagem de gramíneas no final do ciclo produtivo.(AU)

The goal of this study was to evaluate the fodder performance and production of Cynodon (Cv. Tifton 85 or Coastcross) mixed with Arachis pintoi (Forage peanut). The experiment was conducted at the Universidade Tecnológica Federal do Paraná, Câmpus Dois Vizinhos, at an area of approximately 3000m2. A completely randomized block design was applied, with four treatments and three replicates. The treatments were: Tifton 85 and Coastcross in pure crop, Tifton 85 + AF and Coastcross + AF with rotated and successive implantation of one line to the grass and three consecutive lines to the legume. The content of CP, NDF, ADF, IVDMD ashe and DM of the leaf blades, stem of grasses forage peanut and total forage mass available of grazing simulation was evaluated. Coastcross has lower fibrous contents, regardless of treatment. The changing of the seasons during the year provided lower values of CP and IVDMD for all treatments. The evaluation of the grazing simulation showed that Tifton 85 has higher DM values just as the lower ones are found for consortia. When mixed with grasses, forage peanuts reduce the fibrous compounds on pasture, increasing the CP levels in grass pasture at the end of productive cycle.(AU)

Antiarthritic activity of Cynodon dactylon (L.) Pers.

Cynodon dactylon (L.) (Poaceae) is traditionally used herb to treat fevers, skin diseases and rheumatic affections. The ethanolic extract of C. dactylon was found to be safe at all the dose levels (100, 200 and 400 mg/kg, orally) and there was no mortality up to the dose of 5000 mg/kg of extract when administered orally. C. dactylon showed significant antiarthritic activity against Freund’s complete adjuvant induced arthritis in rats. Treatment with C. dactylon significantly reduced the mean percentage change in injected and non injected paw, ankle diameter, clinical severity and significantly increased body weight. Results were confirmed using biochemical parameters; there was a significant improvement in the levels of Hb and RBC in C. dactylon treated rats. The increased levels of WBC, ESR, C- reactive protein (CRP) and TNFα were significantly suppressed in C. dactylon treated rats. C. dactylon showed protective effect in arthritic joints but it has been supported by an improvement in bone lesions rather than in cartilage lesions. It can be concluded that ethanolic extract of C. dactylon at a dose of 400 mg/kg is effective in improving haematological level, CRP and reducing TNFα level. Phytochemical screening showed the presence of alkaloids, flavonoids and glycosides in ethanolic extract. All the above results support the traditional uses of the plant in the treatment of rheumatoid arthritis.