Jensen R, Pierson R E, Braddy P M, Saari D A, Benitez A, Lauerman L H, Horton D P, McChesney A E
J Am Vet Med Assoc. 1976 Sep 1;169(5):524-6.
During all of 1974, we surveyed, for illnesses and deaths, about 407,000 yearling feedlot cattle. From the 3,943 dead cattle, 1,988 necropsies were made; of this number, 31 (1.6%) had ulcers with fatal perforations or hemorrhages; a similar additional number of necropsied cattle had innocuous ulcers as incidental findings. Ulcers developed during all seasons and all stages of fattening, but were more common during the first 45 days of winter-initiated fattening than during other times. Perforations of the abomasal wall resulted in spillage of abomasal contents into the abdominal cavity and the development of peritonitis.
在1974年全年，我们对约40.7万头一岁育肥牛的疾病和死亡情况进行了调查。在3943头死亡的牛中，进行了1988次尸检；其中，31头（1.6%）有伴有致命穿孔或出血的溃疡；在同样数量的尸检牛中，有数量相近的牛有良性溃疡，为偶然发现。溃疡在育肥的所有季节和所有阶段都会出现，但在冬季开始育肥的前45天比其他时间更为常见。皱胃壁穿孔导致皱胃内容物漏入腹腔并引发腹膜炎。
