Effect of Restrict Feeding, Roxarsone or Its Analogues in Inducing Fatty Livers in Mule Ducks

This study is aimed at understanding the role of arsenic in Roxarsone in causing fatty livers in mule ducks. One hundred 10-week-old mule ducks were randomly divided into 5 groups. Ducks received 2 weeks of various treatments followed by 2 weeks of withdrawal. The treatments were non-treatment (control), 300 mg/kg Roxarsone inclusion for 2 weeks (1st and 2nd week), Roxarsone inclusion for one week (2nd week only), restrict feeding, or Roxarsone analogue (3-nitro-4-hydroxyphenyl acid) inclusion. Results showed that feed intake and body weight in the Roxarsone groups and the restrict feeding group decreased significantly during the treatment period. However only the liver and heart weights were significantly decreased (p