TEXAS AGRICULTURAL EXPERIMENT STATION COLLEGE STATION
Dose delivery characteristics of the injector gun was determined during the period using both weight and penetration measurements. Dose delivery measurements were made by weighing on an analytical Mettler balance and comparing quantitatively the delivery capabilities of each barrel size, 1 cc and 2.4 cc. Penetration characteristics for each of the crowned and uncrowned head orifice sizes were determined for the equine, ovine, caprine, bovine, canine and porcine. A summary of these findings for each species tested is given.