Patent ID: 8119343

Claim:
A method for determining whether a dog is heterozygous, homozygous or has an absence of a drd1 mutation identified as a G in position 11 as depicted in nucleotide sequence of SEQ ID NO:4 (mutation 1), and/or whether the dog is heterozygous, homozygous or has an absence of a drd2 mutation identified as a deletion of 1,267 nucleotides between nucleotide number 230 and nucleotide number 1,498 in nucleotide sequence of SEQ ID NO:2 (mutation 2), the method comprising: obtaining a biological sample from the dog determining the presence or absence of the drd1 or drd2 mutation and from the biological sample identifying the dog as: drd1 mutation homozygous by determining homozygosity for mutation 1; or drd1 mutation heterozygous by determining heterozygosity for mutation 1; or drd1 mutation absent based by determining an absence of mutation 1; or drd2 mutation homozygous by determining homozygosity for mutation 2; or drd2 mutation heterozygous by determining heterozygosity for mutation 2; or drd2 mutation absent based by determining an absence of mutation 2.