तेनाश्वखरोष्ट्रवराहव्रजा व्याख्याताः ॥ कZ_०२.२९.४२ ॥
tenāśva-khara-uṣṭra-varāha-vrajā vyākhyātāḥ
By that (same method/principle), the herds of horses, donkeys, camels, and boars are also explained (i.e., governed by analogous rules).
Incorporation by reference: after defining a rule-set for one class (cattle), Kauṭilya extends it to other animal herds by analogy to avoid repetition.