Sward canopy structure and performance of beef heifers under supplementation in Brachiaria brizantha cv. Marandu pastures maintained with three grazing intensities in a continuous stocking system

Casagrande, Daniel Rume; Ruggieri, Ana Cláudia; Moretti, Matheus Henrique; Berchielli, Telma Teresinha; Vieira, Bruno Ramalho; Roth, Anna Paula de Toledo Piza; Reis, Ricardo Andrade

doi:10.1590/s1516-35982011001000002

Cited by 18 publications

(24 citation statements)

References 9 publications

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“…The higher input of nitrogen in pasture has a direct effect on the forage mass and consequently the stocking rate (Moreira et al, 2014). The targets of grazing management with lower forage allowance imply an increase in the stocking rate by greater forage utilization (Casagrande et al, 2011). In the present study, as similar forage allowances were observed (3.2 and 3.4% BW/day of forage mass, respectively, in the mixed pasture and monoculture; data not shown), variations in stocking rate were due to forage mass.…”

Section: Discussionmentioning

confidence: 99%

Production of beef cattle grazing on Brachiaria brizantha (Marandu grass)—Arachis pintoi (forage peanut cv. Belomonte) mixtures exceeded that on grass monocultures fertilized with 120 kg N/ha

Pereira

Rezende

Borges

et al. 2019

Grass and Forage Science

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Mixed grass/legume pastures are an alternative to grass monocultures for increased beef cattle production in tropical climates. The objective of this study was to evaluate the productivity of beef cattle grazing either a mixed pasture of Brachiaria brizantha cv. Marandu grass and Arachis pintoi (forage peanut) cv. Belomonte or a Marandu monoculture, under rotational stocking. Five trials were conducted over a period of nine years in north-eastern Brazil where the sward structure (forage, grass and legume mass) and animal performance were compared for a mixed Marandu grass/ forage peanut pasture, and a Marandu grass monoculture with 120 kg N ha −1 y −1 .Stocking rate was adjusted to maintain forage allowance at 4% body weight/day. A block design was used with four replicates, and warm and cool seasons within each trial were considered, using repeated measurements over time. In the warm season, the forage mass in the mixed pastures was 17% greater than in the monoculture (p = .049), and the stocking rate, average daily gain and liveweight gain per ha were 16.4%, 20.0% and 28.7% greater (p = .004, p < .001 and p < .001 respectively). The average daily gain showed a positive linear relationship with the legume proportion in the sward (p < .001). The mixed forage peanut/Marandu pasture sustained significantly greater beef cattle production (789 kg ha −1 y −1 ) compared to the N-fertilized grass monoculture (655 kg ha −1 y −1 ). Appropriately managed, mixed pastures of forage peanut/Brachiaria pastures are sustainable and have high potential for use in the humid tropics. K E Y W O R D SArachis pintoi, beef cattle, Brachiaria, fertilized pasture, mixed pasture, warm-season legume

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Section: Discussionmentioning

confidence: 99%

Production of beef cattle grazing on Brachiaria brizantha (Marandu grass)—Arachis pintoi (forage peanut cv. Belomonte) mixtures exceeded that on grass monocultures fertilized with 120 kg N/ha

Pereira

Rezende

Borges

et al. 2019

Grass and Forage Science

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“…En un estudio realizado por Machado et al (2007), encontraron que la altura de la pradera de pasto Insurgente tuvo una relación lineal con la oferta de forraje. Para este mismo cultivar, se reportó que conforme se aumentó la asignación de forraje se incrementó la altura de la pradera hasta un punto donde se mantiene estable (Mesquita et al, 2010;Casagrande et al, 2011).…”

Section: Altura De Plantaunclassified

Rendimiento y contenido de proteína en forraje y ensilado de pasto Insurgente e híbridos de Urochloa

Muñoz

Garay-Martínez²,

Drouaillet

et al. 2020

Remexca

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ResumenLa ganadería en el estado de Tamaulipas se ve afectada debido a una marcada estacionalidad en la producción de forraje, que ocasiona escasez durante la época seca, por tanto, es necesario la conservación de forraje para hacer frente a este problema. Por lo anterior, el objetivo de este estudio fue evaluar en condiciones de temporal y durante la época de mayor precipitación el rendimiento (t ha -1 ) de materia seca total (MST) y hoja (MSH); así como, el contenido de proteína cruda (PC, %) en forraje y ensilado de pasto Insurgente, Mulato II, Cobra y Cayman. Los datos se analizaron en un diseño completamente al azar, con cuatro repeticiones y comparación de medias mediante Tukey (p= 0.05). El híbrido Cayman presentó mayor acumulación (p≤ 0.05) de MST y MSH (8.34 y 8.27 t ha -1 , respectivamente) en comparación con Insurgente (6.38 y 6.25 t ha -1 , respectivamente). El mayor (p≤ 0.05) contenido de PC en forraje lo presentaron Cayman y Cobra, con 16.1% en promedio, mientras que Mulato II e Insurgente fueron los de menor valor para esta variable (14.6%, en promedio). La PC en el ensilado fue similar (p˃ 0.05) para los cultivares evaluados, con promedio de 14.4%. Los híbridos Cayman y Cobra mostraron mayor rendimiento de forraje y contenido de proteína cruda, en comparación con Insurgente. El contenido de proteína cruda presente en el ensilado fue superior al 14%, lo que indica que estos cultivares se pueden conservar mediante esta técnica.

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“…The pasture intensity to be chosen will depend mainly on the objective of the farmer as regards animal performance. In situations of higher pasture intensity, performance per area is prioritized; in low-intensity cases, the priority becomes individual performance (Casagrande et al, 2011a). This flexibility is possible because forage grasses can be managed in a wide range of grazing intensities without causing degradation of the pasture.…”

Section: Introductionmentioning

confidence: 99%

Performance and carcass quality of feedlot- or pasture-finished Nellore heifers according to feeding managements in the postweaning phase

et al. 2013

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-The objective of this study was to evaluate the postweaning history of heifers kept on marandu grass pastures with three canopy heights, in a continuous-grazing system, during the rainy period, on feedlot-or pasture finishing. The effects of three canopy heights (15, 25 and 35 cm) associated with two supplements (mineral salt and protein-energy supplement) and two finishing systems in the dry period (feedlot and open pasture) were studied in the postweaning period during the rainy season. The adopted design was completely randomized, with seven replications (animals) in a 2 × 2 factorial arrangement. The animals which received protein-energy supplement reached the finishing period with greater body weight in relation to those fed mineral salt. In both feedlot and pasture finishing systems, compensatory gain effect was observed in the animals that remained on the low pastures during postweaning compared with the high pastures. This compensatory gain was not verified in the animals that received protein-energy supplement in relation to the mineral salt, and thus the animals were slaughtered beforehand. The heifers on pastures with 25 or 35 cm in height were slaughtered in the same period, and those kept on the low pastures were slaughtered afterwards. The studied factors in the postweaning phase did not affect the carcass characteristics. Animals finished in feedlot slaughtered with the same body weight as those finished on pasture show greater carcass yield, subcutaneous fat deposition and renal pelvic and inguinal fat and greater losses with trimmings for cleaning the main hindquarter meat cuts; however, they provide cuts with the same weight but greater fat cover.

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Sward canopy structure and performance of beef heifers under supplementation in Brachiaria brizantha cv. Marandu pastures maintained with three grazing intensities in a continuous stocking system

Cited by 18 publications

References 9 publications

Production of beef cattle grazing on Brachiaria brizantha (Marandu grass)—Arachis pintoi (forage peanut cv. Belomonte) mixtures exceeded that on grass monocultures fertilized with 120 kg N/ha

Production of beef cattle grazing on Brachiaria brizantha (Marandu grass)—Arachis pintoi (forage peanut cv. Belomonte) mixtures exceeded that on grass monocultures fertilized with 120 kg N/ha

Rendimiento y contenido de proteína en forraje y ensilado de pasto Insurgente e híbridos de Urochloa

Performance and carcass quality of feedlot- or pasture-finished Nellore heifers according to feeding managements in the postweaning phase

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