Principal component analysis on fatty acid composition of the meat deriving from calves, young bull and bull of Maremmana breed slaughtered at different age

Clara Sargentini,Roberto Tocci,Davide Rondina,Antonio Bonelli

doi:10.1590/0103-8478cr20200875

Clara Sargentini, Roberto Tocci + Show 2 more

Open Access

https://doi.org/10.1590/0103-8478cr20200875

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Abstract

ABSTRACT: This study evaluated the performance at slaughtering of calves; young bull and bull of Maremmana breed, and compared, through Analysis of Variance (ANOVA) and Principal Component Analysis (PCA) on fatty acid composition, the characteristics of the resulting meat categories: veal, young bull meat and bull meat. The Maremmana cattle is a local endangered breed deriving from Tuscany and Latium. The animals of this study were raised under same conditions in pasture with hay and concentrate supplementations. Eighteen calves of 12-14 months, 27 young bulls of 18 months and 14 bulls of 20-24 months were slaughtered in this trial. The performances at slaughtering were considered, and on the meat samples, the chemical analysis and the fatty acid composition were carried out. Results were submitted to ANOVA and PCA, and a Heat map that considered the fatty acid distances among meat typologies was built. Slaughtering performances were better in young bulls and bulls. Chemical composition didn’t differ among meat categories. Saturated fatty acids (SFA) were similar among meats, but Monounsaturated (MUFA) and Polyunsaturated fatty acids (PUFA) were lower in veal. Desirable fatty acids and Healthy Indices were better in veal. The results of PCA and Heat map confirmed that veal was quite different from other meats. Maremmana meat deriving from animals of different age has shown overall good characteristics, suitable for the diet of western country population.

Highlights

Maremmana cattle is an Italian breed present with enough 10.000 animals in 221 farms
The dressing percentage of calves agreed with those reported by SARGENTINI et al (1996), whereas the results of young bull and bull agreed with SARGENTINI et al (2010) results
Young bull dressing percentage was similar to that reported by TOCCI & SARGENTINI (2020) in Maremmana young bulls raised under different farming systems

Summary

Introduction

Maremmana cattle is an Italian breed present with enough 10.000 animals in 221 farms. The Maremmana breed derives from the Maremma area and it is reared mainly in Lazio (7603 heads in 152 farms) and Tuscany (2404 heads in 63 farms) (ANABIC, 2018). Maremmana is an autochthonous breed, deriving from populations of Bos primigenius (TOCCI & SARGENTINI, 2020). The Maremmana is a rustic and frugal breed well adapted to the hard environment of Maremma, once a marshy and malarious area, from which it takes its name. This breed was used over the past centuries as a draught animal. From the mid-sixties, with the advent of mechanization in agriculture, the Maremmana breed was used for the low-cost production of purebred and crossbreed with specialized meat breeds as Limousin, Chianina and Charolaise (SARGENTINI, 2011)

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