Space allowances for confined livestock and their determination from allometric principles

Petherick, J. Carol and Phillips, Clive J. C. (2009) Space allowances for confined livestock and their determination from allometric principles. Applied Animal Behaviour Science, 117 1-2: 1-12. doi:10.1016/j.applanim.2008.09.008


Author Petherick, J. Carol
Phillips, Clive J. C.
Title Space allowances for confined livestock and their determination from allometric principles
Journal name Applied Animal Behaviour Science   Check publisher's open access policy
ISSN 0168-1591
1872-9045
Publication date 2009-02
Year available 2008
Sub-type Critical review of research, literature review, critical commentary
DOI 10.1016/j.applanim.2008.09.008
Volume 117
Issue 1-2
Start page 1
End page 12
Total pages 12
Editor Petherick, J. Carol
Per Jensen
Place of publication Amsterdam, Netherlands
Publisher Elsevier
Collection year 2010
Language eng
Subject C1
070207 Humane Animal Treatment
830399 Livestock Raising not elsewhere classified
Formatted abstract
The amount of space provided to animals governs important elements of their behaviour and, hence, is critical for their health and welfare. We review the use of allometric principles and equations to estimate the static space requirements of animals when standing and lying, and the space required for animals to feed, drink, stand-up and lie-down. We use the research literature relating to transportation and intensive housing of sheep and cattle to assess the validity of allometric equations for estimating space allowances. We investigated these areas because transportation and intensive housing provide points along a continuum in terms of the duration of confinement, (from hours to months) and spatial requirements are likely to increase with increasing duration of confinement, as animals will need to perform a greater behavioural repertoire for long-term survival, health and welfare. We find that, although there are theoretical reasons why allometric relationships to space allowances may vary slightly for different classes of stock, space allowances that have been demonstrated to have adverse effects on animal welfare during transportation correlated well with an inability to accommodate standing animals, as estimated from allometry. For intensive housing, we were able to detect a space allowance below which there were adverse effects on welfare. For short duration transportation during which animals remain standing, a space allowance per animal described by the allometric equation: area (m2) = 0.020W0.66, where W = liveweight (kg), would appear to be appropriate. Where it is desirable for all animals to lie simultaneously, then a minimum space allowance per animal described by the allometric equation: area (m2) = 0.027W0.66 appears to permit this, given that animals in a group time-share space. However, there are insufficient data to determine whether this allowance onboard a vehicle/vessel would enable animals to move and access food and water with ease. In intensive housing systems, a minimum space allowance per animal described by the allometric equation: area (m2) = 0.033W0.66 appears to be the threshold below which there are adverse effects on welfare. These suggested space allowances require verification with a range of species under different thermal conditions and, for transportation, under different conditions of vehicular/vessel stability. The minimum length of trough per animal (L in m) required for feeding and drinking can be determined from L = 0.064W0.33, with the number of animals required to feed/drink simultaneously taken into account, together with any requirement to minimise competition. This also requires verification with a range of species. We conclude that allometric relationships are an appropriate basis for the formulation of space allowances for livestock.
Keyword Stocking density
Confinement
Transport
Levestock
Animal welfare
Allometry
Behaviour
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Critical review of research, literature review, critical commentary
Collections: Queensland Alliance for Agriculture and Food Innovation
ERA 2012 Admin Only
School of Veterinary Science Publications
 
Versions
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 39 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 42 times in Scopus Article | Citations
Google Scholar Search Google Scholar
Created: Tue, 31 Mar 2009, 17:52:45 EST by Narelle Poole on behalf of School of Veterinary Science