Agonic Aspiration of Blood: Not Useful as an Animal-Based Indicator of Electrical Stunning Ineffectiveness in Pigs (Sus scrofa domesticus).

Agonic aspiration of blood (AAB) may result from an inadequate exsanguination with accidental trachea severing, that can be favoured by ineffective stunning of pigs (Sus scrofa domesticus). This study aimed to evaluate AAB as an animal-based indicator of electrical stunning ineffectiveness, which could be used by official veterinarians during the post-mortem inspection of pigs. Information on 3584 finishing pigs was collected at a Portuguese abattoir that performs head-to-body electrical stunning with horizontal bleeding. Of them, 15.5% of the pigs presented signs of ineffective stunning. AAB lung lesions were found in 27.8% of lungs. Despite what was predicted, a strong correlation was found between well stunned animals and the presence of blood lesions in lungs (p = 0.006). Statistical significances were found between pigs' lateral recumbency at the conveyor and the presence of blood affecting one lung. Under the conditions of this study, the authors cannot point to AAB lung lesions as an animal-based indicator of electrical stunning ineffectiveness. Further studies should be conducted to establish a better understanding of the causes of aspiration of blood, in particular how horizontal bleeding may affect the occurrence of similar lesions.

O acompanhamento sistemico

Ressalta-se a importancia da avaliacao de resultados e se define acompanhamento sistemico como sendo a analise sistematica das informacoes coletadas pelo subsistema de avaliacao e/ou por pesquisas especificas, com a finalidade de retroalimentar todos os subsistemas da organizacao, propiciando-lhes o auto-ajustamento necessario. O acompanhamento sistemico e examinado em seus niveis primarios e secundarios e em seus aspectos longitudinal e transversal, diagnostico e prognostico; analisa-se, ainda, a possibilidade de utilizacao dos processos e tecnicas de 'controle de qualidade' na industria, quando aplicados, especialmente, aos Recursos Humanos de uma organizacao. Conclui-se pela simplicidade, utilidade e excepcionais garantias oferecidas pelo que foi definido como o acompanhamento sistemico.