Genetic parameters associated with meat quality of Nellore cattle at different anatomical points of longissimus: Brazilian standards

Autor(es):Mostrar menos -

Bonin, Marina de Nadai ^[1] ; Pedrosa, Victor Breno ^[2] ; Silva, Saulo da Luz E. ^[3] ; Bunger, Lutz ^[4] ; Ross, Dave ^[5] ; Gomes, Rodrigo da Costa ^[6] ; Santana, Miguel Henrique de Almeida ^[3] ; Cucco, Diego de Cordova ^[7] ; Rezende, Fernanda Marcondes de ^[8] ; itavo, Luis Carlos Vinhas ^[1] ; de Novais, Francisco Jose ^[9] ; Pereira, Marilia Williani Filgueira ^[1] ; Oliveira, Elisangela Chicaroni de Mattos ^[3] ; Ferraz, Jose Bento Sterman ^[9]

Afiliação do(s) autor(es)

^[1] Univ Fed Mato Grosso do Sul, Coll Vet Med & Anim Sci, Av Senador Filinto Muller 2443, BR-79074460 Campo Grande, MS - Brazil

^[2] Univ Estadual Ponta Grossa, Dept Anim Sci, Av Gen Carlos Cavalcanti 4748, BR-84030000 Ponta Grossa, Parana - Brazil

^[3] Univ Sao Paulo, Coll Anim Sci & Food Engn, Ave Duque Caxias Norte 225, BR-13635900 Pirassununga - Brazil

^[4] Anim Genet Consultancy, Edinburgh, Midlothian - Scotland

^[5] Scottish Rural Coll, Edinburgh EH25 9RG, Midlothian - Scotland

^[6] Embrapa Beef Cattle, Av Radio Maia 830, BR-79106550 Campo Grande, MS - Brazil

^[7] Univ Estado Santa Catarina, Dept Anim Sci, Av Beloni Trombeta Zanin 68E, BR-89815630 Chapeco, SC - Brazil

^[8] Univ Fed Uberlandia, Coll Vet Med, BR-050, KM 78, 28, BR-38410337 Uberlandia, MG - Brazil

^[9] Univ Sao Paulo, Coll Vet Med & Anim Sci, Av Duque Caxias Norte 225, BR-13635900 Pirassununga - Brazil

• Tipo de documento: Artigo Científico
• Fonte: MEAT SCIENCE; v. 171, JAN 2021.
• Citações Web of Science: 1

Resumo

The present study estimated genetic parameters and evaluated the genetic and phenotypic correlations between meat quality characteristics of Nellore cattle evaluated at different anatomical points of the longissimus. Data from 1329 Nellore young bulls were used to evaluate, in the 5th and 12th ribs, marbling score (MAR), shear force (SF), cooking weight losses (CWL) and intramuscular fat (IMF). In addition, the subcutaneous fat thickness was measured at the 12th rib (SFT12) and between the last lumbar and the first sacral vertebrae (SFTLR), in the separation of loin and round. Results yielded moderate heritability coefficients for evaluated characteristics, except CWL. High genetic correlations (0.61) were found between measurements of SFT12 and SFTLR. MAR, IMF and SF were evaluated at the 5th and 12th rib. Meat quality and subcutaneous fat thickness measured at different anatomical points of the longissimus are genetically correlated and can be used in genetic selection programs to improve meat quality characteristics in Nellore cattle. (AU)

• Processo FAPESP: 09/01357-4 - Avaliação de características de desempenho e qualidade de carne em linhagens e touros representativos da raça Nelore, utilizando ultrassonografia, análise de imagens e NIRS.
• Beneficiário: Marina de Nadai Bonin
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 09/15930-8 - Avaliação de características de desempenho e qualidade de carne em linhagens e touros representativos da raça Nelore, utilizando ultrassonografia, análise de imagens e NIRS
• Beneficiário: José Bento Sterman Ferraz
• Modalidade de apoio: Auxílio à Pesquisa - Regular