Effect of energy supplementation time and sources to optimize F1 Angus-Nellore growing

• Grant number: 19/25997-4
• Support Opportunities: Scholarships in Brazil - Doctorate
• Start date: May 01, 2020
• End date: December 14, 2022
• Field of knowledge: Agronomical Sciences - Animal Husbandry - Animal Nutrition and Feeding
• Principal Investigator: Ricardo Andrade Reis
• Grantee: Andressa Scholz Berça
• Host Institution: Faculdade de Ciências Agrárias e Veterinárias (FCAV). Universidade Estadual Paulista (UNESP). Campus de Jaboticabal. Jaboticabal , SP, Brazil
• Associated scholarship(s): 21/06521-9 - Energy supplementation and use of condensed tannin replacing antibiotics, BE.EP.DR

Abstract

In intensively managed and nitrogen (N) fertilized pastures that have high proportions of soluble N compounds, energy supplementation with highly fermentable carbohydrates may be a strategy to maximize forage N utilization and rumen microbial protein synthesis.However, different responses to energy supplementation may occur due to the type of energy substrate and the time of supplement supply to the animals, in order to coincide with the end of the main grazing events, aiming to increase N uptake by microorganisms. The experiment will be conducted at Forage and Pastures Sector of FCAV/UNESP during the growing phase of animals kept in palisade cv. Marandu pastures. We will use 48 Aberdeen Angus x Nellore bulls as testers animals, With initial Body Weight (IBW) of 280 kg. The experiment will be conducted in a completely randomized design with 4 treatments and 3 replications. The treatments will consist of: 1 - energy supplementation 0.3% of BW with maize supplied at 9 am; 2 - energy supplementation 0.3% of BW with citrus pulp supplied at 9 am; 3 - energy supplementation 0.3% of BW with maize supplied at 5 pm; 4 - energy supplementation 0.3% of BW with citrus pulp supplied at 5 pm. For evaluation of ruminal and blood parameters, Efficiency of N Use (ENU), intake and digestibility, 8 ruminal cannulated ½ Angus x Nellore bulls will be used, with 280 kg of IBW, distributed in a 4x4 double latin square design. The study aims to investigate the isolated and/or associated effects of two feeding times (9 am and 5 pm) with two sources of energy supplementation (maize or citrus pulp) in the growing of F1 Angus x Nellore bulls in palisade grass pastures, and its implications on the structural characteristics and chemical composition of herbage, intake, nutrient digestibility, ENU and microbial protein productions, animal performance, area gain and stocking rate. (AU)

Scientific publications

(6)

(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)

CARDOSO, ABMAEL DA SILVA; LONGHINI, VANESSA ZIRONDI; BERCA, ANDRESSA SCHOLZ; ONGARATTO, FERNANDO; SINISCALCHI, DEBORA; REIS, RICARDO ANDRADE; RUGGIERI, ANA CLAUDIA. PASTURE MANAGEMENT AND GREENHOUSE GASES EMISSIONS. BIOSCIENCE JOURNAL, v. 38, p. 11-pg., 2022-01-01. (17/11274-5, 15/16631-5, 19/25997-4)

BOAS FONSECA, NATALIA VILAS; CARDOSO, ABMAEL DA SILVA; BERCA, ANDRESSA SCHOLZ; DORNELLAS, ISADORA ALVES; ONGARATTO, FERNANDO; CURVELO SILVA, MARIA LUISA; RUGGIERI, ANA CLAUDIA; REIS, RICARDO ANDRADE. Effect of different nitrogen fertilizers on nitrogen efficiency use in Nellore bulls grazing on Marandu palisade grass. LIVESTOCK SCIENCE, v. 263, p. 6-pg., 2022-07-14. (19/25997-4, 17/11274-5, 15/16631-5)

HOFFMANN, ALVAIR; BERCA, ANDRESSA SCHOLZ; CARDOSO, ABMAEL DA SILVA; FONSECA, NATALIA VILAS BOAS; SILVA, MARIA LUISA CURVELO; LEITE, RHAONY GONCALVES; RUGGIERI, ANA CLAUDIA; REIS, RICARDO ANDRADE. Does the Effect of Replacing Cottonseed Meal with Dried Distiller's Grains on Nellore Bulls Finishing Phase Vary between Pasture and Feedlot?. ANIMALS, v. 11, n. 1, JAN 2021. (19/02101-5, 19/25997-4, 17/11274-5)

FERRARI, ADRIANA CRISTINA; BERCA, ANDRESSA SCHOLZ; CURVELO SILVA, MARIA LUISA; LEITE, RHAONY GONCALVES; DALLANTONIA, ERICK ESCOBAR; ROMANZINI, ELIEDER PRATES; BARBERO, RONDINELI PAVEZZI; CARDOSO, ABMAEL DA SILVA; LAGE, JOSIANE FONSECA; TEDESCHI, LUIS ORLINDO; et al. Effects of supplement type during the pre-finishing growth phase on subsequent performance of Nellore bulls finished in confinement or on tropical pasture. APPLIED ANIMAL SCIENCE, v. 38, n. 5, p. 13-pg., 2022-10-01. (19/25997-4, 15/16631-5)

DE ARAUJO, TIAGO LUIS DA ROS; DA SILVA, WILTON LADEIRA; BERCA, ANDRESSA SCHOLZ; CARDOSO, ABMAEL DA SILVA; BARBERO, RONDINELI PAVEZZI; ROMANZINI, ELIEDER PRATES; REIS, RICARDO ANDRADE. Effects of Replacing Cottonseed Meal with Corn Dried Distillers' Grain on Ruminal Parameters, Performance, and Enteric Methane Emissions in Young Nellore Bulls Reared in Tropical Pastures. ANIMALS, v. 11, n. 10, OCT 2021. (17/11274-5, 19/25997-4, 15/16631-5)

BERCA, ANDRESSA SCHOLZ; TEDESCHI, LUIS ORLINDO; CARDOSO, ABMAEL DA SILVA; REIS, RICARDO ANDRADE. Meta-analysis of the relationship between dietary condensed tannins and methane emissions by cattle. ANIMAL FEED SCIENCE AND TECHNOLOGY, v. 298, p. 15-pg., 2023-02-24. (19/25997-4, 21/06521-9)

Academic Publications

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

BERÇA, Andressa Scholz. Energy supplementation and the use of condensed tannins as strategies for beef cattle intensification. 2023. Doctoral Thesis - Universidade Estadual Paulista (Unesp). Faculdade de Ciências Agrárias e Veterinárias. Jaboticabal Jaboticabal.