Aspectos agronômicos e bromatológicos de leguminosas forrageiras no nordeste brasileiro.

Abstract

The aim of this work was to evaluate the agronomic and bromatologic aspects of nine herbaceous forage legumes. Legumes studied included C. ternatea L., D. heterocarpon (L.) DC. subsp. ovalifolium (Prain) Ohashi cv. Itabela, A. pintoi Krap and Greg. cv. Amarillo, Pueraria phaseoloides (Roxb.) Benth, S. guianensis (Aubl.) Sw. cv. Bandeirante, cv. Cook and cv. Mineirão and Stylosanthes macrocephala Ferreira e Sousa Costa cv. Pioneiro. The following response variables were measured: soil cover, plant height, fresh matter production, stand, seed production, FDN, FDA, hemicellulose, lignin, PB and MM concentrations of leaves and stems. Four cuts were performed during the experimental period. Cutting intensities were at the ground level for the first cut and 5 cm for the following cuts. It was used a complete randomized block design with *Trabalho realizado através do convênio IPA/ UFRPE.

Chemical-bromatological quality and productivity of peanut genotypes (Arachis hipogaea L.)

“…The cultivars studied can be considered highly digestible when compared to values obtained by Teixeira et al (2010), that when studying leguminous forage plants in northeastern Brazil verified that the peanut presents carbohydrates, celluloses, and hemicellulose contents around 16% and lignin at 9%, and in general presented 26% FDA, a value similar to averages obtained in this research. However, peanut cultivars were found to have an average of 58% (PARIS et al, 2008) and 45% (MOURA et al, 2011).…”

“…These data corroborate the premise that this species produces grains but also is a good protein source when compared to forage peanuts Arachis pintoi, which were developed especially for animal feed. According to Teixeira et al (2010), this species has an average protein content of 25%, lower than that obtained in this research. The recommendation of hay production for peanuts in the vegetative period has been researched in several studies, where cut intervals at flowering or in the middle of the crop cycle directly influenced the production of protein, as well as fiber.…”

Valor nutritivo do capim-xaraés em três intensidades luminosas

“…Conforme Van Soest et al (1994), os teores desejáveis desse componente variam de 20 a 40% na matéria seca das plantas, para que se tenham baixos níveis dessa fração nas forrageiras. Já a hemicelulose variou de 33,37 a 38,63% e é a fração da parede celular mais facilmente digerida (Teixeira et al, 2010).…”

Bromatological characteristics of Macrotyloma axillare as a function of combined supply of phosphorus and calcium

“…The NDF content of the leaves of the Macrotyloma legume that were reported in this study, both in relation to the isolated phosphorus Y = 7.9130 -0.0570P +0. supply and in relation to the isolated calcium supply, are below the levels observed by Teixeira et al (2010) Hemicellulose and cellulose levels in the Macrotyloma legume, depending on the phosphorus application rates, behaved in an opposite way to what is preferred for feeding ruminants, since higher hemicellulose content and lower cellulose content are interesting, considering that bacterial flora into rumen break these components into short chain fatty acids (SCFAs), mainly the acetic, propionic, and butyric acid, which represent the most important source of energy in animals that are fed a forage based diet (PARIZ et al, 2011).…”

“…The NDF content is related to consumption modulation, energety density of food, mastication, passage rate, and digestibility of food (VAN SOEST, 1991;EDOUARD et al, 2008). Besides, FDN and ADF fractions are the least digestible fraction of plants and, in the case of plant leaves, the optimal situation would be having low levels of these fractions (TEIXEIRA et al, 2010).…”