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Revista de Ciências Agrárias
Article . 2017 . Peer-reviewed
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Revista de Ciências Agrárias
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Análise das categorias da qualidade da carne de suíno num matadouro

Analysis of pork quality categories in a slaughterhouse
Authors: Raimundo, António;

Análise das categorias da qualidade da carne de suíno num matadouro

Abstract

Os produtores de carne podem vir a ter perdas de rendimentos se a qualidade da carne não for avaliada de uma forma exata aquando da sua comercialização. Uma grande variabilidade ao nível das carnes frescas conduz a produtos com uma grande variabilidade, se a qualidade não for devidamente controlada. A qualidade da carne de porco é influenciada por vários fatores genéticos e não genéticos ou ambientais, incluindo-se ‑ entre os primeiros - entre outros possíveis fatores - a raça, o genótipo, o sexo, a idade, o indivíduo e o músculo e entre os segundos - entre outros fatores - a nutrição e o maneio antes do abate. Estes dois conjuntos de fatores interagem e determinam o resultado dos processos metabólicos nos períodos peri e post mortem. As características fisiológicas da musculatura esquelética também explicam a variabilidade nas suas respostas metabólicas durante o stresse sofrido antes do abate e as subsequentes velocidade e amplitude do abaixamento do pH post mortem. No sentido de determinar a variabilidade na qualidade da carne num matadouro recorremos aos valores inicial e final do pH, ao valor Minolta L* e à percentagem de exsudação durante 48 horas, no músculo Longissimus dorsi de suíno. Com base nos valores desses parâmetros, utilizando critérios existentes na literatura e com base na nossa perceção técnico-científica das próprias amostras, elaborou-se um sistema de categorização da carne com oito categorias. Procedeu-se à comparação dos nossos resultados com os resultados de estudos relativos às categorias da qualidade da carne mencionados na literatura referentes a diferentes matadouros em diferentes países, de forma a identificar possíveis razões para a variabilidade encontrada.

Revista de Ciências Agrárias, vol. 40 n.º spe (2017)

Country
Portugal
Keywords

Variabilidade, variabilidade, variability, quality categories, pork, variability., matadouro, slaughterhouse, Qualidade, Carne de porco, Matadouro, Carne de suíno, Pork, qualidade

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
1
Average
Average
Average
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