Productivity of beef cattle grazing Brachiaria brizantha cv. Marandu with and without nitrogen fertilizer application or mixed pastures with the legume Desmodium ovalifolium

Camila Almeida dos Santos; Rafael Cassador Monteiro; Bruno G. C. Homem; Lucero Sarabia-Salgado; Daniel R. Casagrande; José Marques Pereira; Cláudia de Paula Rezende; Bruno José Rodrigues Alves; Robert M. Boddey

doi:10.1111/gfs.12581

journal article Sep 05, 2022

Productivity of beef cattle grazing Brachiaria brizantha cv. Marandu with and without nitrogen fertilizer application or mixed pastures with the legume Desmodium ovalifolium

Camila Almeida dos Santos Rafael Cassador Monteiro

Bruno G. C. Homem

Lucero Sarabia-Salgado

Daniel R. Casagrande

José Marques Pereira

Cláudia de Paula Rezende

Bruno José Rodrigues Alves

Robert M. Boddey

Grass and Forage Science Vol. 78 No. 1 pp. 147-160 · Wiley

View at Publisher Save 10.1111/gfs.12581

Abstract

AbstractThe use of forage legumes to contribute biologically fixed nitrogen (N) to pastures is an alternative to increase beef cattle production in tropical regions. The objective was to compare the impact of the introduction of a legume with that of N fertilizer application on forage and animal production in Brachiaria pastures. This two‐year study assessed three pasture treatments: (1) mixed Marandu palisadegrass (Brachiaria brizantha [syn. Urochloa brizantha] cv. Marandu) and the legume “ovalifolium” (Desmodium ovalifolium) cv. Itabela (Mixed), (2) Marandu palisadegrass pastures with 150 kg N ha−1 (Fertilized), and (3) Marandu palisadegrass without N fertilizer (Unfertilized). Rotational stocking with a variable stocking rate was used with a target herbage allowance of 1.0 kg forage kg body weight−1. The pre‐grazing green herbage mass was similar for Fertilized and Mixed pastures, with 54% and 63% more mass than Unfertilized pasture, respectively (p < .001). Cattle that grazed the fertilized pasture had the greatest average daily gain (ADG; p = .017). The stocking rate and liveweight gain per area were greatest for the Fertilized and Mixed pastures (p < .001 and p < .001, respectively). No differences between treatments were found for DM forage intake (p = .555). Organic matter digestibility was lowest (p < .001) for the Mixed pasture. The inclusion of the ovalifolium legume in the Marandu pasture had the same impact on beef cattle production as annual fertilization with 150 kg N ha−1. The potential and environmental benefits of ovalifolium are discussed.

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Details

Published: Sep 05, 2022
Vol/Issue: 78(1)
Pages: 147-160
License: View

Authors

C

Camila Almeida dos Santos

Department of Soil Sciences Federal Rural University of Rio de Janeiro, UFRRJ Seropédica Brazil

R

Rafael Cassador Monteiro

Department of Soil Sciences Federal Rural University of Rio de Janeiro, UFRRJ Seropédica Brazil

B

Bruno G. C. Homem

Department of Animal Sciences Federal University of Lavras, UFLA Lavras Brazil; Embrapa Agrobiologia Seropédica Brazil

L

Lucero Sarabia-Salgado

Faculty of Veterinary Medicine National Autonomous University of Mexico Ciudad de México Mexico

D

Daniel R. Casagrande

Department of Animal Sciences Federal University of Lavras, UFLA Lavras Brazil

J

José Marques Pereira

CEPLAC/CEPEC Itabuna Brazil; Department of Agronomy State University of Santa Cruz, UESC Ilhéus Brazil

C

Cláudia de Paula Rezende

Animal Husbandry Experimental Station of the Extreme South of Bahia (CEPLAC/ESSUL) Itabela Brazil

B

Bruno José Rodrigues Alves

Embrapa Agrobiologia Seropédica Brazil

R

Robert M. Boddey

Embrapa Agrobiologia Seropédica Brazil

Funding

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior

Conselho Nacional de Desenvolvimento Cientifico e Tecnologico Award: Processo: 404169/2013‐9

Fundação Carlos Chagas Filho de Amparo a Pesquisa do Estado do Rio de Janeiro Award: Processo No. E‐26/203.031/2017

Ministry for Primary Industries

Cite This Article

Camila Almeida dos Santos, Rafael Cassador Monteiro, Bruno G. C. Homem, et al. (2022). Productivity of beef cattle grazing Brachiaria brizantha cv. Marandu with and without nitrogen fertilizer application or mixed pastures with the legume Desmodium ovalifolium. Grass and Forage Science, 78(1), 147-160. https://doi.org/10.1111/gfs.12581

Productivity of beef cattle grazing Brachiaria brizantha cv. Marandu with and without nitrogen fertilizer application or mixed pastures with the legume Desmodium ovalifolium

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