Roman siege engines BC, and surrounded by Roman fortifications. As was standard siege technique at the time, "ballistae" were placed up in the towers with other soldiers armed with either bows or slings. The onager was a post-classical Roman siege engine, which derived its name from the kicking action of the machine, similar to that of an onager (wild ass). It is a type of catapult that uses torsional pressure, generally from twisted rope, to store energy for the shot. The onager consisted of a frame placed on the ground to whose front end a vertical frame of solid timber was rigidly fixed;
Animal digest flavoring. Pet food may legally be labelled as "Chicken Flavored" regardless of the percentage of chicken-derived product it contains, so long as the chicken flavoring is deemed "perceptible." If a product is labeled as "flavored" by a certain type of meat, the digest it contains must have been produced from tissues pertaining to the listed animal species. Chicken flavored food must be flavored with chicken digest. Animal digest Animal digest is a common ingredient used in pet foods. As defined by the Association of American Feed Control Officials, digest is produced by the chemical or enzymatic hydrolysis of clean animal