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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Divergent temperaments are associated with beef tenderness and the inhibitory activity of calpastatin

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Author(s):
da Silva Coutinho, Marcelo Aranda [1] ; Ramos, Patricia Maloso [1] ; da Luz e Silva, Saulo [2] ; Martello, Luciane Silva [2] ; Cravo Pereira, Angelica Simone [3] ; Delgado, Eduardo Francisquine [1]
Total Authors: 6
Affiliation:
[1] Univ Sao Paulo, Programa Posgrad Ciencia Anim & Pastagens, Dept Zootecnia, Escola Super Agr Luiz de Queiroz, Av Padua Dias 11, BR-13418900 Piracicaba, SP - Brazil
[2] Univ Sao Paulo, Fac Zootecnia & Engn Alimentos, BR-13635900 Pirassununga, SP - Brazil
[3] Univ Sao Paulo, Fac Med Vet & Zootecnia, BR-13635900 Pirassununga, SP - Brazil
Total Affiliations: 3
Document type: Journal article
Source: MEAT SCIENCE; v. 134, p. 61-67, DEC 2017.
Web of Science Citations: 6
Abstract

Ninety-six feedlot-finished Nellore steers were used to verify the relationship between temperament indicators and meat tenderization. Temperament index (TI), chute score (CS), and average of exit velocity (EV) with CS (AT) presented low positive correlations (P <= 0.05) with shear force, either at 2 or 16 days postmortem (WBSF-16). The rectal temperature was consistently correlated with temperament indicators (TI, CS, and AT) and WBSF-16. Two groups (n = 12) representing the most tender (39.2 +/- 4.9 N) and most tough meat (94.1 +/- 11.8 N), based on WBSF-16, were compared for temperament, and calpastatin activity (CASTa) was determined 48 h postmortem. The tender group presented lower EV, TI, and AT (P <= 0.05). The tender group exhibited lower (P <= 0.05) CASTa in the triceps brachii muscle, but there was no difference in CASTa in the longissimus lumborum muscle between WBSF groups. Meat tenderness and inhibitory activity of calpastatin may be associated with divergent temperament indices in zebu cattle. (AU)

FAPESP's process: 14/24602-2 - The relative activity of calpastatin isoforms determine postmortem aging of beef from animals with great participation of Bos indicus
Grantee:Eduardo Francisquine Delgado
Support Opportunities: Regular Research Grants