Estimation of in vivo body composition of Iberian pigs using bioelectric impedance and ultrasonography techniques.

Autor: García-Contreras C; Departamento de Nutrición y Producción Animal Sostenible, Estación Experimental del Zaidín, Consejo Superior de Investigaciones Científicas, CSIC, Profesor Albareda, 1, 18008 Granada, Spain. Electronic address: consolacion.garcia@eez.csic.es., Sánchez-Esquiliche F; Sánchez Romero Carvajal Jabugo, Jabugo, 21290, Huelva, Spain., Lachica M; Departamento de Nutrición y Producción Animal Sostenible, Estación Experimental del Zaidín, Consejo Superior de Investigaciones Científicas, CSIC, Profesor Albareda, 1, 18008 Granada, Spain., Fernández-Fígares I; Departamento de Nutrición y Producción Animal Sostenible, Estación Experimental del Zaidín, Consejo Superior de Investigaciones Científicas, CSIC, Profesor Albareda, 1, 18008 Granada, Spain., Gómez-Carballar F; Sánchez Romero Carvajal Jabugo, Jabugo, 21290, Huelva, Spain., Matos G; Sánchez Romero Carvajal Jabugo, Jabugo, 21290, Huelva, Spain., Lara L; Departamento de Nutrición y Producción Animal Sostenible, Estación Experimental del Zaidín, Consejo Superior de Investigaciones Científicas, CSIC, Profesor Albareda, 1, 18008 Granada, Spain., Nieto R; Departamento de Nutrición y Producción Animal Sostenible, Estación Experimental del Zaidín, Consejo Superior de Investigaciones Científicas, CSIC, Profesor Albareda, 1, 18008 Granada, Spain.
Jazyk: angličtina
Zdroj: Meat science [Meat Sci] 2024 Jul; Vol. 213, pp. 109484. Date of Electronic Publication: 2024 Mar 11.
DOI: 10.1016/j.meatsci.2024.109484
Abstrakt: Iberian pigs are renowned for their high-quality products and distinctive characteristics, including high fat accumulation, low protein deposition rate, and a long productive cycle. The study aimed to assess in vivo body composition of purebred Iberian pigs using bioimpedance analysis (BIA) and ultrasonography. Accurate estimation of body composition in live animals is crucial for adopting decisions at the farm level. The experiment involved three groups of pure male Iberian pigs differing in body weight (BW; 60, 80 and 100 kg) with the same nutritional management. Body measurements, BIA and back fat and loin thickness (measured by ultrasonography) were obtained before slaughter. After slaughter pig carcasses were chemically analysed. A strong correlation between BIA measurements, specifically resistance (R s ) values, and body chemical parameters (total protein, lipids, ash, and water contents; p < 0.001 for all) was found. Reactance values (X c ), however, did not exhibit significant correlations. Regression analyses were conducted to predict carcass composition based on BIA measurements, BW, ultrasonography and linear corporal measurements. The prediction models achieved high R 2 values for lipids, protein, total ash, water, and lean tissue (0.957, 0.968, 0.936, 0.961 and 0.976, respectively, p < 0.001 for all), indicating strong predictive power. These findings demonstrate the potential of non-invasive techniques such as BIA for estimating body chemical composition and quality of pig carcasses. However, it is important to acknowledge that the prediction models developed may not be applicable to other pig populations, as they were based on a specific sample of pigs.
Competing Interests: Declaration of competing interest The authors declare that they have no competing financial interests that could influence the work reported in this paper.
(Copyright © 2024 The Authors. Published by Elsevier Ltd.. All rights reserved.)
Databáze: MEDLINE
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