766
Trial 3 broiler chickens were maintained on control feed until they reached 3 weeks of age at which time they were taken off of feed for 2 . 5 hr and then placed on either control feed or feed containing 4 . 0 ppm ochratoxin A , and heart rate and blood pressure were measured every half hour through 7 hr .
 None
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
Answer:
 None