Translation of "girth" into Persian

that his joy was like to burst his horse girths.

که از نوک سر تا تنگ اسبش از شوق به تکان آمده بود.

Not the girth, not the length, but same style.

البته ابعاد و سايزش دقيقا مثل هم نيست اما همين استايلُ داره