Brachiaria Brizantha CV. BRS Piatã. Originally from Welega, Africa; medium size, height between m and m; thin, green stems (4 mm in diameter). Brachiaria brizantha cv. BRS Piatã forage availability under integrated crop- livestock-forestry systems in Brazil. Poster (PDF Available) · September with . BRS Piatã, grown alone or intercropped with soybean, due to different densities. *Significant (p Brachiaria brizantha planted.

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The data were grouped according to the season of the year as follows: Therefore, the unfavorable canopy structure for grazing and the lower nutritive value of the forage explain the lower animal performance observed in the dry than in the wet season Table 2. In spite of the adjustment of the stocking rate Table 2 and Figure 3pasture height Table 1 and herbage mass Table 4 still decreased, during that season.

Thus, Brachiaria brizantha cv. The soil at the experimental area is a Dystrophic Red Latosol Embrapa, Based on previous analyses, the highest-order polynomial was selected.

John Wiley, New York. Services rbizantha Demand Journal. Three tester steers were used per paddock.

Introduction One of the factors responsible for low beef cattle production in the tropics is inadequate animal nutrition, resulting mainly from the seasonality of forage production, which is characteristic of tropical regions. Together with high temperatures Figure 1these conditions resulted in a water deficit that lasted until the beginning of December, whereas in the following year, the soil water level was re-established in the beginning of October Figure 2.

Herbage accumulation rate was calculated as the difference between forage mass inside current harvest and outside previous harvest of the cage, considering only the green part leaves and stemsdivided by the number of days between samplings. This is an open-access article distributed under the terms of the Creative Commons Attribution License. In this context, Valle et al. Crop Breeding and Applied Biotechnology An international terminology for grazing lands and grazing animals. The stocking rate was calculated as the product of the average weight of tester and “grazer” animals and the number of days the animals remained in the paddock.


However, studies on the value for cultivation and use of this new cultivar, which provide adequate and reliable information on the new genetic material to its users, are needed before it is placed on the market MAPA, Ingestive behaviour, herbage intake and grazing efficiency of beef cattle steers on Tanzania guinea grass subjected to rotational stocking managements.

Herbage accumulation rate was higher for the third than for the second experimental year, and HM was lower for the second than for the remaining experimental years. In addition, the uncertainties regarding climate changes lead to different predictive strategies for breeding programs.

Communications in Statistics – Simulation and Computation The animals remained in the same paddocks for one year as tester animals, when they were replaced with other animals of the same category.

The experiment was conducted between June and May The grazing method used was continuous stocking, with variable stocking rate. However, except for the first dry season, because of the low herbage accumulation rate Table 2 and the small dimensions of the paddocks 0. Revista Brasileira de Zootecnia Nineteen selected accessions of Brachiaria brizantha were evaluated in a Regional Assay Network. Grazing brafhiaria, herbage intake and animal performance of beef cattle heifers on marandu palisade grass subjected to intensities of continuous stocking management.

Brachiaria Brizantha CV. BRS Piatã

The observed herbage accumulation rate variation Figures 3 A and 3B was typical for the tropical regions, resulting from the rainfall seasonality Figures 1 and 2 and temperature and photoperiod variations Figure 1. Grass and Forage Science However, the seasonality of forage production will still be a limitation present in all scenarios Deconto,requiring new strategies to meet the animal nutritional demands for the longest period possible.

Average daily gain ADG was analyzed using multivariate repeated measures analysis according to Littell et al.


Discussion The observed herbage accumulation rate variation Figures 3 A and 3B was typical for the tropical regions, resulting from the rainfall seasonality Figures 1 and 2 and temperature and photoperiod variations Figure 1.

This finding is of great importance because the seasonality of forage production is one of the bottlenecks for pasture-raised cattle production.

The steers were distributed according to weight so that the average weight in each paddock was the same. Stocking rate and live weight gain per area were higher for the first rbachiaria, lower for the second year, and intermediate for the third year.

The sward height was measured twice a week at 60 random points per experimental unit, using a ruler graduated in centimeters.

O melhoramento de forrageiras tropicais no Brasil. The herbage allowance Allen et al. Every 28 days, 15 samples 1 m 2 were randomly selected and harvested at ground level in each paddock. AU – animal unit.

Brachiaria Brizantha cv BRS Piatã – Products – Germisul – Pastures seeds

The seeds were covered by using a locked disk harrow, and soil was compacted using a soil compaction roller. Three steers were placed in each paddock, in a total of 36 steers. Modelling covariance structure in the analysis of repeated measures data. Therefore, it was decided to reduce the stocking rate per paddock during the second and third dry seasons Table 2. Therefore, any effort to increase the availability of quality forage during the dry season will contribute significantly to increasing cattle farming productivity.

The height at each point was considered to be the average canopy height surrounding the ruler. The remaining animals were kept at a reserve pasture 7. The soil was corrected with application of 2. The Journal of Agricultural Science