20344
The present study is conducted to determine the potential mechanisms of Zn on hepatic lipid deposition and metabolism for yellow catfish Pelteobagrus fulvidraco with 8 - week chronic exposure to low Zn levels ( Zn levels : 0 . 05 , 0 . 35 and 0 . 86mg / l Zn , respectively ) and 96 - h acute exposure to a high Zn level ( Zn level : 4 . 71mg / l Zn , respectively ) .
 Chemical: Zn; Chemical: Zn; Chemical: Zn; Chemical: Zn; Chemical: Zn; Chemical: Zn; Chemical: Zn
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: Zn; Chemical: Zn; Chemical: Zn; Chemical: Zn; Chemical: Zn; Chemical: Zn; Chemical: Zn