| align="left" | <p>This article was originally sourced from [http://www.cabi.org/ahpc/Default.aspx?site=160&page=2143 The Animal Health & Production Compendium (AHPC)] published online by [http://www.cabi.org/ CABI].</p> | | align="left" | <p>This article was originally sourced from [http://www.cabi.org/ahpc/Default.aspx?site=160&page=2143 The Animal Health & Production Compendium (AHPC)] published online by [http://www.cabi.org/ CABI].</p> |