Patent ID: 8669286

Claim:
A method of increasing average daily gain (ADG) of an animal, comprising administering a feed composition comprising a compound of formula IIIA: wherein Z is NO 2 , CN, Cl, F, Br, I, H, COR, COOH or CONHR; Y is CF 3 , alkoxy, alkyl, hydroxyalkyl, alkylaldehyde, formyl, H, F, Br, Cl, I, CN or Sn(R) 3 ; R is alkyl, haloalkyl, dihaloalkyl, trihaloalkyl, CH 2 F, CHF 2 , CF 3 , CF 2 CF 3 , aryl, phenyl, halogen, alkenyl or OH; R 2 is H, F, Cl, Br, I, CH 3 , CF 3 , OH, CN, NO 2 , alkyl, arylalkyl, NH 2 , NHR, N(R) 2 or SR; R 3 is H, F, Cl, Br, I, CN, NO 2 , COR, COOH, CONHR, CF 3 or Sn(R) 3 ; Q is H, alkyl, halogen, CF 3 , CN, C(R) 3 , Sn(R) 3 , N(R) 2 , NHCONHR, NHCOOR, OCONHR, CONHR, NHCSCH 3 , NHCSCF 3 , NHCSR, OH, OCOR or SR; n is an integer of 1-4; and m is an integer of 1-3; or its optical isomer, pharmaceutically acceptable salt, or any combination thereof.