The heaviest show dogs are likely to be big, strong, working breeds, while breeds kept as pets tend to be smaller and thus lighter.
ðə hˈɛviɪst ʃˈoʊ dˈɑːɡz ɑːɹ lˈaɪkli təbi bˈɪɡ, stɹˈɔŋ, wˈɜːkɪŋ bɹˈiːdz, wˌaɪl bɹˈiːdz kˈɛpt æz pˈɛts tˈɛnd təbi smˈɔːlɚ ænd ðˈʌs lˈaɪɾɚ.