飼(か)い主(ぬし)shepherd, (pet) owner

この犬(いぬ)の飼(か)い主(ぬし)は誰(だれ)ですか？

Who is the owner of this dog? {shepherd, (pet) owner}

僕(ぼく)がそのボーダーコリーの飼(か)い主(ぬし)です。

I am the owner of that Border Collie. {shepherd, (pet) owner}

飼(か)い主(ぬし)は、責任(せきにん)を持(も)ってペットを育(そだ)てるべきだ。

The pet owner should raise their pet responsibly. {shepherd, (pet) owner}

僕(ぼく)はその飼(か)い主(ぬし)のペットに対(たい)する怒(おこ)り方(かた)が好(す)きではない。

I do not like the way that pet owner gets angry at his pet. {shepherd, (pet) owner}

二(に)ヶ月(かげつ)前(まえ)に買(か)い始(はじ)めた飼(か)い猫(ねこ)が、どんどん飼(か)い主(ぬし)に懐(なつ)いてきています。

The pet cat that I started buying two months ago is gradually becoming more attached to its owner. {shepherd, (pet) owner}