Evaluation of different captive bolt lengths and breed influence upon post-stun hind limb and forelimb activity in fed cattle at a commercial slaughter facility

Meat Science
Miriam S MartinTemple Grandin

Abstract

The objective of this study was to assess the effects of captive bolt length and breed type on post-stun leg activity in cattle. A total of 2850 Holstein (HOL) and non-Holstein British/Continental bred (NHOL) steers and heifers were observed post-stunning at a large commercial slaughter facility. A pneumatically powered penetrating captive bolt stunner was used with three different bolt lengths: CON, 15.24 cm; MED, 16.51 cm; and LON, 17.78 cm. Hind limb kicking, forelimb activity, take away belt stops, carcass swing and number of knife sticks during exsanguination were recorded for each animal from video recording. Hind limb and forelimb kicks observed ranged from 0 to 25 and 0 to 8, respectively. Analysis of post-stun hind limb and forelimb activity indicated that increasing pneumatically powered penetrating captive bolt length does not decrease post-stun leg activity. There was a higher percentage of cattle experiencing take away belt stops and carcass swing in HOL as compared with NHOL.

Citations

Jan 23, 2019·Animal Science Journal = Nihon Chikusan Gakkaihō·Josef KamenikEva Voslarova
Apr 18, 2020·Animal Science Journal = Nihon Chikusan Gakkaihō·Vladimir VecerekJarmila Konvalinova
Feb 7, 2020·Journal of Animal Science·Lily N Edwards-Callaway, Michelle S Calvo-Lorenzo
Nov 10, 2020·EFSA Journal·UNKNOWN EFSA Panel on Animal Health and Welfare (AHAW)Christoph Winckler
Dec 15, 2020·EFSA Journal·UNKNOWN EFSA Panel on Animal Health and Welfare (AHAW)Christoph Winckler

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