Option -Indexes

RewriteEngine on
RewriteBase /{farm}

RewriteRule ^([^/]+)$ {farmer}doku.php?animal=$1 [QSA,L]
RewriteRule ^([^/]+)/$ {farmer}doku.php?animal=$1 [QSA,L]
RewriteRule ^([^/]+)/(.+) {farmer}$2?animal=$1 [QSA,L]