Elbers A R, Vos J H, Dirkzwager A
Animal Health Service in the Southern Netherlands, respectively, Epidemiology Department, Boxtel, The Netherlands.
Vet Q. 1995 Sep;17(3):106-7. doi: 10.1080/01652176.1995.9694544.
In 280 slaughter pigs, the oesophageal region of the stomach was examined to test the hypothesis that there is a (causal) relationship between the intensity of bile staining of oesophagogastric tissue due to bile regurgitation and the severity of oesophagogastric lesions. When the stomachs were opened, almost all stomachs contained bile and 99.6% of stomachs showed bile staining of the pars oesophagea. A total of 14.3% of the stomachs showed distinct erosions and/or ulceration. A considerable proportion of the stomachs (58.5%) had hyperkeratosis as the only lesion. Only two animals showed a completely intact epithelium. There was no evidence for an increased proportion of oesophagogastric lesions with an increased intensity of bile staining. No dark yellow to green staining was observed; a just detectable to an obvious yellow was seen. This is an indication for bile regurgitation of recent origin. Therefore, there is no evidence for the hypothesis that the regurgitation of bile into the stomach is positively linked to the occurrence of oesophagogastric lesions in fattening pigs. It is suggested that various factors associated with slaughter, such as fasting and slaughter procedure, are primarily responsible for the presence of bile and the staining of the pars oesophagea in the stomachs.
对280头屠宰猪的胃食管区域进行了检查，以验证以下假设：由于胆汁反流导致的食管胃组织胆汁染色强度与食管胃病变的严重程度之间存在（因果）关系。打开猪胃时，几乎所有胃中都含有胆汁，99.6%的胃的食管部出现胆汁染色。共有14.3%的胃出现明显糜烂和/或溃疡。相当比例的胃（58.5%）仅有角化过度这一病变。只有两头猪的上皮完全完整。没有证据表明胆汁染色强度增加时食管胃病变的比例也会增加。未观察到深黄色至绿色染色；仅可见刚可检测到的黄色至明显黄色。这表明胆汁反流是近期发生的。因此，没有证据支持胆汁反流至胃与育肥猪食管胃病变的发生呈正相关这一假设。建议与屠宰相关的各种因素，如禁食和屠宰程序，是胃中胆汁存在及食管部染色的主要原因。
