Production and quality of milk from dairy cows grazing exclusively on Mombasa grass pasture, during the spring-summer period and fed roughage supplementations, during the autumn-winter, were evaluated in two consecutive years. The pasture of 11.4 ha was divided into 57 paddocks of 2,000 m2 each, including three replications with 19 paddocks each. The pasture was managed with two occupation days and 36 resting days. During the spring-summer period, cows received only grass pasture. In the autumn-winter period, they had access […]

This experiment was carried out from April to September 2008 with the objective of evaluating the forage production dynamics of winter annual grasses (Avena strigosa Schereb cv. IAPAR-61; Lolium multiflorum Lam cv. Comum; Avena strigosa cv. Comum; Avena sativa cv. IPR 126; and Triticum aestivum L cv. BRS Tarumã) on four sowing dates (April 4th, April 24th, May 14th and June 3rd). A completely randomized blocks with four replications was used. It was evaluated number of days and production at […]

Black-oat (Avena strigosa Schreb.) cv. EMBRAPA 29 and Triticale (X triticosecale Wittmack) cv. IAC 3 were studied under harvest or grazing every 30 d, in three planting seasons (April, May and June), in order to evaluate the bromatological composition under Northern Rio de Janeiro State conditions. The experiment was done in a factorial arrangement 2 × 2 × 3, in randomized block design with three replicates, being the factors: grass, systems and planting season. The dry matter (DM) concentration differed […]

The winter forage species Black-oat (Avena strigosa Schreb.) cv. EMBRAPA 29 and triticale (X triticosecale Wittmack.) cv. IAC 3, were studied on three planting dates, April (4/21/2004), May (5/20/2004), and June (6/21/2004) in order to evaluate the technical viability of forage produced under harvest and grazing, in the Northern Region of Rio de Janeiro State. DM production was greater for the harvest system when planted in May, where Black-oat produced 2,317.48 kg DM/ha and triticale 2,128.30 kg DM/ha, compared to […]

Three winter forage species: black oat (Avena strigosa Schreb. cv. Common), italian ryegrass (Lolium multiflorum Lam. cv. Common) and white clover (Trifolium repens L. cv. Zapican) were introduced in a pasture of aruanagrass (Panicum maximum Jacq. cv. Aruana), grazed by sheep in an intensive production system (irrigation, fertilization and rotational stocking) with the objective of increasing the forage supply during the dry winter period. From 04-14-00 to 01-18-01 and 06-07-01 to 02-22-02, in six grazing periods, the pre-grazing forage mass, […]

The effect of feeding systems on performance of beef heifers, on period of eight to 18/20 months of age. Charolais heifers and their crosses with Nellore were evaluated. The feeding systems were: ‘Oat + Annual ryegrass + Pearl millet’- Black oat (Avena strigosa Schreb) and Annual ryegrass (Lolium multiflorum Lam) and Pearl millet (Pennisetum americanum (L.) Leeke) pasture; ‘Oat + Annual ryegrass + natural pasture’- Black oat and annual ryegrass and natural pasture with Annoni grass (Eragrostis planna Nees); ‘Oat […]

The degradation kinetics, effective degradability (ED) of dry matter (DM), neutral detergent fiber (NDF), and crude protein (CP) with or without correction for microbial protein were evaluated from black oat, Mombaça, star grass and millet, taken from pastures at a continuous grazing. The forage was collected from different points of pasture every 14 days for black oat and every 28 days for the other grasses. The feeds were incubated in the rumen using nylon bag at different times (0, 6, […]

The aim of this work was to evaluate the weight gain of growing and finishing steers, the life weight gain per hectare, and the forage quality in different grass production systems in the winter and summer. In the winter, the black oat pasture (BOP) and star grass (SGA) production systems were evaluated. In the summer, the millet (MIL), Mombaça (MOM), and star grass (SGA) production systems were evaluated and the effect of the production systems used in the winter on […]

The production and quality of forage of annual temperate grasses mixtures under continuous grazing condition were evaluated. The mixtures used were: T1 – Triticale (X Triticosecale) plus ryegrass, T2 – Oat (Avena strigosa) plus ryegrass, and T3 – Triticale plus oat plus ryegrass. Broadrast sowing occurred at 04/21/95, being the area fertilized with 200 kg/ha (05-30-15). The broadcast fertilization was of 175 kg/ha of nitrogen in urea form and it was subdivided in four applications. The establishment of the pasture […]