Reference for Chullin 73:11

בהמה דקה שפשטה ידה ולא החזירה פסולה שאינה אלא הוצאת נפש בלבד

THE SAGES SAY, [THE SLAUGHTERING IS INVALID] UNLESS IT JERKED EITHER ITS FORELEG OR ITS HIND LEG, OR IT MOVED ITS TAIL TO AND FRO; AND THIS IS THE TEST BOTH WITH REGARD TO LARGE AND SMALL ANIMALS.<span class="x" onmousemove="('comment',' By 'large animals' is meant oxen, by 'small animals' sheep and goats.');">³</span>

Jastrow