15400
At birth and near peak lactation ( late May ) , calves from cows supplemented with Se had greater ( P < 0 . 01 ) WBSe than calves from cows fed no Se and calves from cows fed seleno - yeast had greater ( P <= 0 . 01 ) WBSe and GSH - Px than calves from cows fed sodium selenite .
 Se, Se, seleno, GSH, sodium selenite
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 Se, Se, seleno, GSH, sodium selenite