Generally, susceptibility to poison ivy, oak, or sumac is not significantly influenced by dog or cat breed. The primary factor affecting the likelihood of a reaction is the amount of fur coverage. Pets with shorter or less dense fur are more prone to skin exposure and, consequently, might develop rashes more readily if their skin comes into direct contact with urushiol oil. Regardless of breed, it's essential to keep all pets out of areas known to harbor these plants to minimize the risk of exposure.