Feed efficiency of pregnant Nellore cows and potential of body tissues development of their progenies

• Grant number: 17/06709-2
• Support Opportunities: Regular Research Grants
• Start date: September 01, 2017
• End date: September 30, 2019
• Field of knowledge: Agronomical Sciences - Animal Husbandry - Animal Production
• Principal Investigator: Sarah Figueiredo Martins Bonilha
• Grantee: Sarah Figueiredo Martins Bonilha
• Host Institution: Instituto de Zootecnia. Agência Paulista de Tecnologia dos Agronegócios (APTA). Secretaria de Agricultura e Abastecimento (São Paulo - Estado). Nova Odessa , SP, Brazil
• Associated researchers: Joslaine Noely dos Santos Goncalves Cyrillo ; Márcio Machado Ladeira ; Maria Eugênia Zerlotti Mercadante ; Otávio Rodrigues Machado Neto ; Renata Helena Branco Arnandes ; Roberta Carrilho Canesin

Abstract

The phenotypic evaluation of feed efficiency variation in beef cows is essential to increase the knowledge about the impact of more efficient animals use on beef productivity. The present project will be developed with the objective of identifying and quantifying the phenotypic variation of feed efficiency traits in pregnant Nellore cows in order to elucidate the effect of the residual feed intake class to which they belong in the production traits of their calf crops. Sixty Nellore heifers will be evaluated during the first and second pregnancy (until weaning of the second calf), to determine the associations between feed efficiency and skeletal size, body composition (obtained by ultrasonography), calf growth until weaning, and endocrine, energy, protein and mineral metabolism analysing metabolic indicators. The results generated with the development of the project will be important to promote the evaluation, selection and use of animals with higher feed efficiency for meat production. (AU)

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)

ARAUJO BATALHA, CAMILA DELVEAUX; MORELLI, MARCELA; BRANCO, RENATA HELENA; DOS SANTOS GONCALVES CYRILLO, JOSLAINE NOELY; CANESIN, ROBERTA CARRILHO; ZERLOTTI MERCADANTE, MARIA EUGENIA; MARTINS BONILHA, SARAH FIGUEIREDO. Association between residual feed intake, digestion, ingestive behavior, enteric methane emission and nitrogen metabolism in Nellore beef cattle. ANIMAL SCIENCE JOURNAL, v. 91, n. 1, JAN-DEC 2020. (18/20080-2, 17/06709-2, 17/50339-5)

ALMEIDA ROLLO DE PAZ, ANA CAROLINA; LADEIRA, MARCIO MACHADO; TEIXEIRA, PRISCILLA DUTRA; CANESIN, ROBERTA CARRILHO; ARAUJO BATALHA, CAMILA DELVEAUX; ZERLOTTI MERCADANTE, MARIA EUGENIA; MARTINS BONILHA, SARAH FIGUEIREDO. Performance and muscle lipogenesis of calves born to Nellore cows with different residual feed intake classification. PLoS One, v. 17, n. 7, p. 18-pg., 2022-07-29. (17/06709-2, 18/20080-2)

TREVIZAN, N.; CANESIN, R. C.; BRANCO, R. H.; BATALHA, C. D. A.; CYRILLO, J. N. S. G.; BONILHA, S. F. M.. Growth, ruminal and metabolic parameters and feeding behavior of Nellore cattle with different residual feed intake phenotypes. LIVESTOCK SCIENCE, v. 244, FEB 2021. (17/06709-2, 17/50339-5)

BATALHA, CAMILA D. A.; DE ARAUJO, FABIANA L.; BRANCO, RENATA H.; TEDESCHI, LUIS O.; BONILHA, SARAH F.. Calculating energy efficiency use for Nellore bulls divergent in residual feed intake. JOURNAL OF ANIMAL SCIENCE, v. 98, p. 1-pg., 2020-11-01. (19/17714-2, 18/20080-2, 17/06709-2)

ARAUJO BATALHA, CAMILA DELVEAUX; TEDESCHI, LUIS ORLINDO; DE ARAUJO, FABIANA LANA; BRANCO, RENATA HELENA; DOS SANTOS GONCALVES CYRILLO, JOSLAINE NOELY; MARTINS BONILHA, SARAH FIGUEIREDO. Animals selected for postweaning weight gain rate have similar maintenance energy requirements regardless of their residual feed intake classification. JOURNAL OF ANIMAL SCIENCE, v. 99, n. 3, MAR 2021. (17/50339-5, 19/17714-2, 17/06709-2)