Impacts productive, environmental and economic of the supplementation strategies of the diet of beef cattle under grazing heights and termination strategies

• Grant number: 12/14956-6
• Support Opportunities: Scholarships in Brazil - Doctorate
• Start date: November 01, 2012
• End date: February 29, 2016
• Field of knowledge: Agronomical Sciences - Animal Husbandry - Animal Production
• Principal Investigator: Euclides Braga Malheiros
• Grantee: Rondineli Pavezzi Barbero
• Host Institution: Faculdade de Ciências Agrárias e Veterinárias (FCAV). Universidade Estadual Paulista (UNESP). Campus de Jaboticabal. Jaboticabal , SP, Brazil
• Associated scholarship(s): 13/25202-5 - Effect of diet and forage species on the metabolic profile of ruminants, BE.EP.DR

Abstract

The growing concern over the environmental impacts caused by livestock generates the demand for information that can address the questions of the world population, and address this important economic activity in the efficient management of production resources. Grazing management, combined with techniques of food supplementation can increase the efficiency of nutrient utilization and available resources in livestock systems, thereby reducing environmental impacts and increasing the financial return. The objective of this study is to evaluate the effects of production, environmental and economical rearing of beef steers on pasture supplemented, and strategies for finishing in the dry season. Will be used 18 paddocks of Brachiaria brizantha cv. Marandu grazed to 15, 25 and 35 cm for steers in the growing phase under continuous stocking with variable stocking rate during the rainy season, water and transition / dry. Will be used supplementation strategies, and mineral supplement in the amount of 0.3% BW (body weight) in the pasture of 25 and 35 cm, 0.3 and 0.6% of PC in pastures of 15 cm. The design is completely randomized design with repeated measures on time, in periods of 28 days. Will be measured structural characteristics and nutritional value of pasture, forage intake and supplement, weight gain and methane emissions by animals per unit of product in each system. In the dry period, half of the animals of each treatment will be finished in confinement, and the other half in the pastures, receiving 1.0% of PC supplements. Methane emissions from animals will be measured, in order to determine the best strategy for management of grazing, supplemental feeding, and finishing system on reducing emissions of greenhouse gases by beef cattle.

Scientific publications

(5)

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

BARBERO, RONDINELI P.; MALHEIROS, EUCLIDES B.; NAVE, RENATA L. G.; MULLINIKS, JOHN T.; DELEVATTI, LUTTI M.; KOSCHECK, JEFFERSON F. W.; ROMANZINI, ELIEDER P.; FERRARI, ADRIANA C.; RENESTO, DIEGO M.; BERCHIELLI, TELMA T.; et al. Influence of post-weaning management system during the finishing phase on grasslands or feedlot on aiming to improvement of the beef cattle production. AGRICULTURAL SYSTEMS, v. 153, p. 23-31, MAY 2017. (12/20264-0, 12/14956-6, 13/25202-5)

BARBERO, R. P.; MALHEIROS, E. B.; ARAUJO, T. L. R.; NAVE, R. L. G.; MULLINIKS, J. T.; BERCHIELLI, T. T.; RUGGIERI, A. C.; REIS, R. A.. Combining Marandu grass grazing height and supplementation level to optimize growth and productivity of yearling bulls. ANIMAL FEED SCIENCE AND TECHNOLOGY, v. 209, p. 110-118, NOV 2015. (12/20264-0, 12/14956-6, 11/00060-8, 13/25202-5)

CARDOSO, ABMAEL DA SILVA; BRITO, LIZIANE DE FIGUEIREDO; JANUSCKIEWICZ, ESTELLA ROSSETO; MORGADO, ELIANE DA SILVA; BARBERO, RONDINELI PAVEZZI; WERNER KOSCHECK, JEFFERSON FABIANO; REIS, RICARDO ANDRADE; RUGGIERI, ANA CLAUDIA. Impact of Grazing Intensity and Seasons on Greenhouse Gas Emissions in Tropical Grassland. ECOSYSTEMS, v. 20, n. 4, p. 845-859, JUN 2017. (12/06718-8, 12/14956-6, 11/00060-8)

BARBERO, RONDINELI PAVEZZI; MALHEIROS, EUCLIDES BRAGA; MARIA AGUILAR, NATALIA; ROMANZINI, ELIEDER PRATES; FERRARI, ADRIANA CRISTINA; NAVE, RENATA LA GUARDIA; MULLINKS, JOHN TRAVIS; REIS, RICARDO ANDRADE. Supplementation level increasing dry matter intake of beef cattle grazing low herbage height. JOURNAL OF APPLIED ANIMAL RESEARCH, v. 48, n. 1, p. 28-33, JAN 1 2020. (12/20264-0, 12/14956-6)

DELEVATTI, LUTTI MANECK; ROMANZINI, ELIEDER PRATES; WERNER KOSCHECK, JEFFERSON FABIANO; DA ROSS DE ARAUJO, TIAGO LUIS; RENESTO, DIEGO MONTEIRA; FERRARI, ADRIANA CRISTINA; BARBERO, RONDINELI PAVEZZI; MULLINIKS, JOHN TRAVIS; REIS, RICARDO ANDRADE. Forage management intensification and supplementation strategy: Intake and metabolic parameters on beef cattle production. ANIMAL FEED SCIENCE AND TECHNOLOGY, v. 247, p. 74-82, JAN 2019. (13/25202-5, 12/20264-0, 13/05894-0, 14/21138-3, 12/14956-6, 13/09394-1)

Academic Publications

(References retrieved automatically from State of São Paulo Research Institutions)

BARBERO, Rondineli Pavezzi. Grazing height and supplementation to beef yearling bulls growing and effetcts on finishing period. 2016. Doctoral Thesis - Universidade Estadual Paulista (Unesp). Faculdade de Ciências Agrárias e Veterinárias. Jaboticabal Jaboticabal.