The effectiveness of broiler stunning using different voltage and current frequency and the consequences on meat quality are reported. Loss of sensitivity was controlled in fifteen batches of medium and heavy broilers (i.e. corneal reflex, time for recover tension of neck muscles, quick beat of wings, head movements) and frequency of these signs was related to the theoretical (calculated) current that passed through the bird bodies. Prevalence of defects like pectoral muscles haemorrhages and coracoid’s or furculum’s fractures are not higher when frequency of current was reduced from 350 to 250 Hz and voltage maintained at 70-75 Volts, but the frequency of birds showing corneal reflex change from 91 to 33 percent and time for recover tension of neck muscles significantly increase. Any sign of reduced bleeding was observed and meat quality was similar in batches stunned at 250 and 350 Hz.
Effetto di diverse condizioni di voltaggio e frequenza sullo stordimento del pollo da carne / M. Trevisani; A. Vecchini. - In: RIVISTA DELL'ASSOCIAZIONE ITALIANA DEI VETERINARI IGIENISTI. - ISSN 1974-8620. - STAMPA. - 2.1:(2008), pp. 17-20. (Intervento presentato al convegno XVIII Convegno Associazione Italiana Veterinari Igienisti. Sicurezza alimentare: l’approccio del veterinario igienista ad una problematica in continua evoluzione tenutosi a Sabaudia (LT) Hotel Residence Oasi di Kufra nel 11- 13 giugno 2008).
Effetto di diverse condizioni di voltaggio e frequenza sullo stordimento del pollo da carne
TREVISANI, MARCELLO;
2008
Abstract
The effectiveness of broiler stunning using different voltage and current frequency and the consequences on meat quality are reported. Loss of sensitivity was controlled in fifteen batches of medium and heavy broilers (i.e. corneal reflex, time for recover tension of neck muscles, quick beat of wings, head movements) and frequency of these signs was related to the theoretical (calculated) current that passed through the bird bodies. Prevalence of defects like pectoral muscles haemorrhages and coracoid’s or furculum’s fractures are not higher when frequency of current was reduced from 350 to 250 Hz and voltage maintained at 70-75 Volts, but the frequency of birds showing corneal reflex change from 91 to 33 percent and time for recover tension of neck muscles significantly increase. Any sign of reduced bleeding was observed and meat quality was similar in batches stunned at 250 and 350 Hz.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
