Note 1800 — BOOK VIII. THE NATURE OF THE TERRESTRIAL ANIMALS.
John Bostock translation
According to Cuvier, what Pliny here says respecting the herds of wild asses, and the power of the old males, is correct; but it is doubtful whether there is any foundation for what is said about the castration of the newly-born animals; Ajasson, ubi supra; Lemaire, vol. iii. p. 440.—B.