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Abstract
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| The aim of this work was to evaluate the effect of different fasting periods on carcass yield and microbiological quality of rabbit carcass. Seventy two New Zealand White x Californian rabbits were fed with the same commercial feed (35% NDF, 13% starch, 7.4% soluble fibre) during the whole fattening period. The feed was removed to one third of the rabbits 24 hours before the slaughtering, 12 hours before the slaughtering to another third of the animals and the remaining animals were fed ad libitum since their transport to the slaughterhouse. There were no significative differences in live weight or carcass weight of the rabbits. Carcass yield was higher for animals fasted 12 and 24 hours before the slaughtering (3 and 5 points more respectively) than animals were fed ad libitum since their transport to the slaughterhouse. There were significative differences when pH and temperature of the carcasses were compared after the cold time and 24 hours post mortem. The log cfu/g of Enterobacteriaceae and Coliform were higher for animals fed ad libitum. A gradual increase with the time was observed in the microorganism content of the carcass. The highest values were reached 11 days after slaughter. There were no differences between treatments for the microorganisms analysed in the caecum content. In conclusion, in animals fasted 12 or 24 hours before the slaughtering, decreases the gastrointestinal weight, the carcass yield is increased without impairment of carcass quality parameters as temperature and pH, and enhances the carcass microbiological quality. | |
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International
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No |
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Congress
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XXXIII Symposium de ASESCU 2008 |
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960 |
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Place
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Calahorra (España) |
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Reviewers
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No |
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ISBN/ISSN
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978-84-612-4856-8 |
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Start Date
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30/10/2008 |
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End Date
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31/10/2008 |
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From page
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24 |
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To page
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28 |
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XXXII symposium de Cunicultura |