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Year : 2008
Tome : 159
Volume : 8-9
Pages : 423-430
Title : Measure of efficiency and quality of stunning by penetrating captive bolt in beef cattle
Authors : V. MARZIN, J.F. COLLOBERT, S. JAUNET, L. MARREC
Summary : The aim of this study, realized on 500 adult cattles stunned with a penetrating captive bolt pistol, is to assess efficiency and quality of stunning in a large capacity slaughter. Percentage of cattle collapsed with a single shot was 93.2%. However, movements of limbs after the collapse and in the bleeding area were observed respectively in 43.8% and 46.2% of stunned cattles, and righting reflex in 24.6% of cases. Site of impact through the frontal bones significantly influences intensity of this movements (p<0.01). The targets localised in an area respectively 4 cm round, an 6 to 8 cm round the middle of the forehead occur to be the more efficient to obtain the best quality in stunning.
Keywords : Stunning, perforating captive bolt pistol, quality, site of impact, slaughter
Correspondence : V. MARZIN
Adress : Direction Départementale des Services Vétérinaires du Calvados - 6, Boulevard du Général Vanier, 14040 Caen Cedex, FRANCE. E-mail : virginie.marzin@agriculture.gouv.fr
Link : pdf

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