YOU SAID:
Chickens are nu favorite animals
INTO JAPANESE
ニワトリはヌ好きな動物です
BACK INTO ENGLISH
Chicken is a favorite animal
INTO JAPANESE
鶏は好きな動物です
BACK INTO ENGLISH
Chicken is my favorite animal
INTO JAPANESE
鶏は私の好きな動物です
BACK INTO ENGLISH
Chicken is my favorite animal
That didn't even make that much sense in English.