Leitura adicional
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http://www.efsa.europa.eu/EFSA/efsa_locale-1178620753812_1178620775386.htm
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EFSA (European Food Safety Authority), 2006. Opinion of the Scientific Panel on Animal Health and Welfare (AHAW) on request from the Commission related to risks associated with tailbiting in pigs and possible means to reduce the need for tail docking considering the different housing and husbandry systems.
http://www.efsa.europa.eu/EFSA/efsa_locale-1178620753812_1178672658201.htm
EFSA (European Food Safety Authority), 2006. Opinion of the Scientific Panel on Animal Health and Welfare (AHAW) on request from the Commission related to welfare aspects of different housing and husbandry systems for adult breeding boars, pregnant, farrowing sows and unweaned piglets.
http://www.efsa.europa.eu/EFSA/efsa_locale-1178620753812_1178655708740.htm
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de Jubecourt, D., Dutertre, C., Badouard, B., 2003. Elevages Label Rouge et nausseur plein air avec engraissement sur litière. Techni Proc. Vol 26 (1), 13-18.
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