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.

Author: Faemi Akir
Country: Venezuela
Language: English (Spanish)
Genre: Love
Published (Last): 5 October 2017
Pages: 313
PDF File Size: 19.13 Mb
ePub File Size: 9.83 Mb
ISBN: 861-3-53509-127-4
Downloads: 36107
Price: Free* [*Free Regsitration Required]
Uploader: Kasho

The steers briizantha 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 year, lower for the second year, and intermediate for the third year.

Tester and “grazer” animals were weighed monthly following a h fast. However, in the study conducted by Euclides et al. Conclusions Brachiaria brizantha cv. However, the seasonality of forage production will still be a limitation present in all scenarios Deconto,requiring new strategies to meet bfachiaria animal nutritional demands for the longest period possible.

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

The percentages of each component were used to estimate the leaf: Thus, Brachiaria brizantha cv. Statistics in Medicine Three steers were placed in each paddock, in brizanrha total of 36 steers. 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.

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 data indicate that herbage allowance did not limit forage ingestion and consequently live weight gain, during the dry season Table 4. Based on previous analyses, the highest-order polynomial was selected. Crop Breeding and Applied Biotechnology The average daily gain observed for cv.

Material and Methods The experiment was conducted between June and May Laboratory of Climatology, New Jersey. Daily average weight gain was calculated as the increase in live weight of tester animals divided by the number of days between weighing sessions.


During the wet season, HA was lower than the optimal value suggested by Hodgson Table 4. Ingestive behaviour, herbage intake and grazing efficiency of beef cattle steers on Tanzania guinea grass subjected to rotational stocking managements.

Soil chemical characteristics were as follows: Two samples simulating animal grazing were also collected from each paddock and analyzed to determine crude protein, neutral detergent fiber, and acid detergent lignin concentrations and in vitro organic matter digestibility, by near-infrared spectroscopy NIRS.

A randomized blocks experimental design was used, with two treatments and six replicates. Journal Range Management Standard errors of the pkata are indicated between parentheses.

These characteristics are of great importance because diet selection is the main factor affecting the nutritional status of animals Walker, 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. The remaining animals were kept at brachiqria reserve pasture 7.

A third ecotype, registered as cv. The height at each point was considered to be the average canopy height surrounding the ruler. Covariance structure selection in general mixed models.

Herbage accumulation was estimated using three exclusion cages 1 m 2 for each paddock. Every 28 days, 15 samples 1 m 2 were randomly selected and harvested at ground level in each paddock. Variations in the grazing process, pasture accessibility, and ease of the leaf harvest resulting from changes in canopy structure may therefore significantly influence forage consumption and, consequently, animal performance.

The seeds were covered by using a locked disk harrow, and soil was compacted using a soil compaction roller. However, except for the first dry season, because of the low herbage accumulation rate Table 2 and the small dimensions of the paddocks 0.

In addition, the uncertainties regarding climate changes lead to different predictive strategies for breeding programs. However, the higher ADG observed during the first dry season Table 5 can be explained brachiraia the better rain distribution observed for that period Figure 1given that water deficit brachlaria only observed in June Figure 2.


The experimental area was 8. Embrapa Gado de Corte, Campo Grande. No differences between the two cultivars were observed during the wet season for any of the evaluated parameters.

Hodgson suggested that herbage intake would reach its maximum at an herbage allowance of 10 to 12 kg of dry matter per kg of body weight. Rainfall, average relative air humidity, and minimum, average, and maximum temperatures Figure 1 were collected from brachisria meteorological station close to the experimental site.

This is an open-access article distributed under the terms of the Creative Commons Attribution License. However, differences between experimental years were observed for the remaining variables quantified Table 5.

Herbage accumulation rate was calculated as the difference between forage mass inside current harvest and outside previous harvest of the cage, brachiaris only the green part leaves and stemsdivided by the number of days between samplings. Because of a delay in the building of the exclusion cages, herbage accumulation was not estimated for the first experimental year. Average brozantha gain ADG was analyzed using multivariate repeated measures analysis according to Littell et al.

Brachiaria Brizantha cv BRS Piatã

Therefore, it was decided to reduce the stocking rate per paddock during the second and third dry seasons Table 2. Water balance was calculated Thornthwaite and Mather, using the average temperature and accumulated monthly rainfall Figure 2. The herbage allowance Allen et al. Nineteen selected accessions of Brachiaria brizantha were evaluated in a Regional Assay Network.

Animals were weighed every 28 days.