Resumen

MICHEL, M.A.; REVIDATTI, F.; SINDIK, M.  y  SANZ, P.. Propiedades físico-químicas y tecnológicas de la carne en dos genotipos de pollos de crecimiento lento. Rev. vet. [online]. 2015, vol.26, n.2, pp.131-135. ISSN 1669-6840.

Meat quality in poultry is a complex area that can be approached from different perspectives. The aim of this study was to determine the physico-chemical and technological meat properties of "Campero INTA" chicken, to determine differences attributable to gender and genotype and contribute to the description of such attributes in these birds. A flock of mixed chickens with both sexes formed by the progeny of maternal genotypes E and T of this breed (independent variable) was used. A comparative analysis was performed using a factorial ANOVA with genotype and sex as main effects. Ethereal extract in breast samples showed a significant interaction sex*genotype (F= 4.54 p= 0.04). Values reached by T males were the highest (2.26±0.68%) and were statistically separated from another experimental groups which results were 1.58±0.39% (E male), 1.49±0.52% (E female) and 1.38±0.27% (T female). In leg quarter samples it was recorded a significant interaction sex*genotype for cooking loss in double boiler (F= 4.94 p= 0.03). The higher values were recorded by T female genotype (20.44±3.63%) and the lowest by E female genotype (14.04±5.92%), while E males (16.66±4.04%) and T males (15.86±2.82%) registered intermediate values. Significant differences were observed when considering sex and cooking loss in oven variable, with values of 34.59±6.76% (male) and 27.22±4.52% (female). It can be concluded that sex affected the physical and chemical attributes of the meat, meaning this higher lipid content in males. Both genotypes had a different behaviour with regard to the analyzed technological attributes, data that may improve the knowledge of the meat quality of the studied breed

Palabras clave : chicken of slow growth; genotypes; meat quality.

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