Selection criteria for economic importance traits in Santa Inês sheep

• Grant number: 12/15982-0
• Support Opportunities: Regular Research Grants
• Start date: November 01, 2012
• End date: October 31, 2014
• Field of knowledge: Agronomical Sciences - Animal Husbandry - Genetics and Improvement of Domestic Animals
• Principal Investigator: Claudia Cristina Paro de Paz
• Grantee: Claudia Cristina Paro de Paz
• 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: Flávia Fernanda Simili ; Lenira El Faro Zadra ; Maria Lucia Pereira Lima ; Ricardo Lopes Dias da Costa

Abstract

The aim of this study is determine measurements that are indicative of resistance to parasites in Santa Inês sheep and estimate genetic parameters for eye scores (ES), fecal egg counts (FEC) and packed cell volume (PCV) and estimate genetic parameters for productive and reproductive traits and the association between these traits with ES, FEC and PCV. The project will be developed in the southeastern region of Brazil. The data of traits indicative for resistance to nematode parasites will be held by a trained person in different ages, each 30 days interval. Previous data sets recorded by breeders will be collected for the following traits: age at first calving, calving interval, and weights in different ages, scrotal circumference and prolificacy. The variance components for productive and reproductive traits, and resistance to nematode parasites will be estimated by restricted maximum likelihood (REML) using MTDFREML (Boldman et al., 1993), WOMBAT (Meyer, 2006) e Bayesian inference using THRGIBBS2F90 (Misztal et al., 2002) package. (AU)

Scientific publications

(4)

(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)

OLIVEIRA, ELISA JUNQUEIRA; SAVEGNAGO, RODRIGO PELICIONI; DE FREITAS, LUARA AFONSO; FREITASO, ANIELLY PAULA; MAIA, SUELLEN RODRIGUES; SIMILI, FLAVIA FERNANDA; EL FARO, LENIRA; DIAS DA COSTA, RICARDO LOPES; SANTANA JUNIOR, MARIO LUIZ; PARO DE RAZ, CLAUDIA CRISTINA. Estimativas de parâmetros genéticos e análise de agrupamento para resistência e resiliência à verminose em ovinos de corte Santa Inês. Pesquisa Agropecuária Brasileira, v. 53, n. 12, p. 1338-1345, DEC 2018. (16/10583-1, 13/20091-0, 12/15982-0)

OLIVEIRA, ELISA JUNQUEIRA; SAVEGNAGO, RODRIGO PELICIONI; FREITAS, ANIELLY DE PAULA; DE FREITAS, LUARA AFONSO; DE PAZ, ANA CAROLINA ALMEIDA ROLLO; EL FARO, LENIRA; SIMILI, FLAVIA FERNANDA; VERCESI FILHO, ANIBAL EUGENIO; DA COSTA, RICARDO LOPES DIAS; DE PAZ, CLAUDIA CRISTINA PARO. Genetic parameters for body weight and morphometric traits in Santa Ines sheep using Bayesian inference. Small Ruminant Research, v. 201, AUG 2021. (18/01540-2, 12/15982-0, 16/14522-7)

FREITAS, L. A.; SAVEGNAGO, R. P.; OLIVEIRA, E. J.; PAZ, C. C. P.; MUNARI, D. P.. Inheritance, genetic correlation and cluster analyses of fecal egg count, packed cell volume and body weight in different ages using random regression model in Santa Ines sheep. Small Ruminant Research, v. 174, p. 57-61, MAY 2019. (16/10583-1, 12/15982-0)

DE FREITAS, LUARA AFONSO; SAVEGNAGO, RODRIGO PELICIONI; MENEGATTO, LEONARDO SARTORI; DO BEM, RICARDO DUTRA; STAFUZZA, NEDENIA BONVINO; ALMEIDA ROLLO DE PAZ, ANA CAROLINA; PIRES, BIANCA VILELA; DIAS DA COSTA, RICARDO LOPES; PARO DE PAZ, CLAUDIA CRISTINA. Cluster analysis to explore additive-genetic patterns for the identification of sheep resistant, resilient and susceptible to gastrointestinal nematodes. Veterinary Parasitology, v. 301, p. 5-pg., 2022-01-01. (16/14522-7, 18/01540-2, 12/15982-0)