[Working environment in agriculture: a report on experience and issues for further investigation]

animal husbandry aves de corral bovin bruit cattle cerdo condiciones de trabajo condition de travail contaminantes danemark denmark dinamarca estres ganado bovino noise occupational hazards pepiniere plant nurseries polluant pollutants porcin poultry riesgos ocupacionales risque professionnel ruido safety at work seguridad en el trabajo stress swine viveros volaille working conditions