Reduced space in outdoor feedlot impacts beef cattle welfare

Animal : an International Journal of Animal Bioscience
F MacitelliM J R Paranhos da Costa

Abstract

There is a trend to reduce the space allowance per animal in cattle feedlot, despite its potential negative impact on animal welfare. Aiming to evaluate the effects of space allowance per animal in outdoor feedlots on beef cattle welfare, a total of 1350 Nellore bulls (450 pure and 900 crossbred) were confined for 12 weeks using three space allowances: 6 (SA6), 12 (SA12) and 24 (SA24) m2/animal (n = 450 per treatment). Bulls were housed in three pens per treatment (n = 150 per pen). The first 6 weeks in the feedlot were defined as 'dry' and the last as 'rainy' period, according to the accumulated precipitation. Animal-based (body cleanliness, health indicators and maintenance behaviour) and environmental-based indicators (mud depth and air dust concentration) were assessed weekly during the feedlot period. Most of the health indicators (nasal and ocular discharge, hoof and locomotion alterations, diarrhoea, bloated rumen and breathing difficulty) were assessed in a subset of 15 animals randomly selected from each pen. Coughs and sneezes were counted in each pen. Maintenance behaviours (number of animals lying and attending the feed bunk) were recorded with scan sampling and instantaneous recording at 20-min intervals. Postmorte...Continue Reading

References

Jul 14, 2010·The Veterinary Clinics of North America. Food Animal Practice·T A Edwards
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Dec 4, 2012·Journal of Toxicology and Environmental Health. Part B, Critical Reviews·Sara MayJill A Poole
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Jun 15, 2014·Meat Science·Temple Grandin
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Jul 4, 2015·The Veterinary Clinics of North America. Food Animal Practice·Daniel U Thomson, Brad J White
Dec 6, 2018·Anais Da Academia Brasileira De Ciências·Fabrício S OliveiraMateus J R P DA Costa
Nov 30, 2016·Veterinary and Animal Science·Temple Grandin

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