Hostname: page-component-848d4c4894-sjtt6 Total loading time: 0 Render date: 2024-06-22T11:22:19.790Z Has data issue: false hasContentIssue false

Welfare aspects of chick handling in broiler and laying hen hatcheries

Published online by Cambridge University Press:  11 January 2023

TG Knowles*
Affiliation:
School of Veterinary Science, University of Bristol, Langford, Bristol BS40 5DU, UK
SN Brown
Affiliation:
School of Veterinary Science, University of Bristol, Langford, Bristol BS40 5DU, UK
PD Warriss
Affiliation:
School of Veterinary Science, University of Bristol, Langford, Bristol BS40 5DU, UK
A Butterworth
Affiliation:
School of Veterinary Science, University of Bristol, Langford, Bristol BS40 5DU, UK
L Hewitt
Affiliation:
School of Veterinary Science, University of Bristol, Langford, Bristol BS40 5DU, UK
*
* Contact for correspondence and requests for reprints: toby.knowles@bris.ac.uk

Abstract

Six commercial hatcheries were visited in the United Kingdom, three of which processed laying hen chicks and three of which processed broiler chicks. The accelerations experienced by the chicks passing through the handling systems were evaluated using miniature data logging accelerometers, which were sent through the systems. The lengths, speeds, and heights of drops of the pathways within each system were also measured. The response of the chicks to the handling was measured in terms of mortality, orientation, righting time (as a measure of disorientation) and tonic immobility. The study showed there to be a range in the physical severity of handling across the hatcheries that could also be seen in terms of differences in the measurements made on the chicks. Nonetheless, the welfare of the chicks passing through the automated systems appeared to be generally acceptable. However, given the velocities and accelerations within these handling systems, there is scope for considerable damage to the chicks, and for poor welfare, if systems are not properly set up or maintained.

Type
Research Article
Copyright
© 2004 Universities Federation for Animal Welfare

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Butterworth, A, Reeves, NA, Harbour, D, Werret, G and Kestin, SC 2001 Molecular typing of strains of Staphylococcus aureus isolated from bone and joint lesions in lame broilers by random amplification of polymorphic DNA. Poultry Science 45: 3542Google Scholar
Jones, RB 1986 The tonic immobility reaction of the domestic fowl: a review. World's Poultry Science Journal 42: 8296CrossRefGoogle Scholar
Jones, RB, Blokhuis, HJ and Beuving, G 1995 Open-field and tonic immobility responses in domestic chicks of two genetic lines differing in their propensity to feather peck. British Poultry Science 36: 525530CrossRefGoogle Scholar
McNamee, PT, King, DC, Spratt-Davidson, S, Ball, H and Smyth, J 2000 Guidelines for the investigation of lameness in commercial broiler fowl. Irish Veterinary Journal 53: 191194Google Scholar
McNamee, PT, McCullagh, JJ, Thorp, BH, Ball, HJ, Graham, D, McCullough, SJ, McConaghy, D and Smyth, JA 1998 Study of leg weakness in two commercial broiler flocks. Veterinary Record 143: 131135CrossRefGoogle ScholarPubMed
RSPCA 1999 Welfare Standards at Hatcheries (for Layer and Broiler Chicks). Royal Society for the Prevention of Cruelty to Animals: West Sussex, UKGoogle Scholar
Svedberg, J 1996 Report on an Automated Chick Counter. Project report, Swedish Agricultural University, SkaraGoogle Scholar
Svedberg, J 1997 Report 1, Chick Separator. Project report, Swedish Agricultural University, SkaraGoogle Scholar
Svedberg, J 1998 Report 2, Chick Separator. Project report, Swedish Agricultural University, SkaraGoogle Scholar