User-agent: Yandex
Disallow: /default.aspx?g=forum
Disallow: /default.aspx?g=forum&c=4
Disallow: /default.aspx?g=forum&c=5
Host: forum.animalhealth.ru

User-agent: Googlebot
Disallow: /default.aspx?g=forum
Disallow: /default.aspx?g=forum&c=4
Disallow: /default.aspx?g=forum&c=5

User-agent: *
Disallow: /default.aspx?g=forum
Disallow: /default.aspx?g=forum&c=4
Disallow: /default.aspx?g=forum&c=5