Vernay M
Reprod Nutr Dev (1980). 1986;26(5A):1137-49.
The influence of caecotrophy on organic acid production and behaviour was studied for 4 days in rabbits with and without a collar preventing caecotrophy. Volatile fatty acids (VFA) and lactate were measured in the digestive material and the corresponding venous blood. Blood was removed from the gastric, intestinal, caecocolonic, portal and hepatic veins and the inferior vena cava of anaesthetized rabbits. Arterial blood was also collected. A comparison of the data obtained from rabbits with and without a collar showed significant differences. When caecotrophy was prevented, lactic fermentation in the stomach ceased and the lactate level dropped in venous and arterial blood. Meanwhile, VFA production in the foregut (stomach and intestine) stopped, whereas it augmented in the hindgut; VFA enrichment of the caecocolonic and portal blood was greater when the rabbits were subjected to a stercoral fast. The liver removed about 15% of the lactate reaching it, while acetate, propionate and butyrate uptakes were 21, 59 and 76%, respectively, in rabbits with caecotrophy. The corresponding values for those without caecotrophy were: 20% lactate, 43% acetate, 70% propionate and 84% butyrate. The plasma venous-arterial difference in acetate was negative in the peripheral blood: uptake was about 16% for the controls and 27% for rabbits without caecotrophy; the other VFA were not involved. The variations of the levels of VFA in the arterial blood were not significant; only lactate concentration diminished by about 30%. Preventing caecotrophy augmented digestive production, and the absorption of VFA in the rabbit hindgut and their metabolism in the liver and extra-hepatic tissues also increased.
在有或没有防止食粪癖项圈的兔子中，对食粪癖对有机酸产生和行为的影响进行了为期4天的研究。在消化物质和相应的静脉血中测量挥发性脂肪酸（VFA）和乳酸。从麻醉兔子的胃、肠、盲结肠、门静脉、肝静脉和下腔静脉采集血液。也采集动脉血。对有项圈和无项圈兔子获得的数据进行比较，结果显示存在显著差异。当防止食粪癖时，胃中的乳酸发酵停止，静脉血和动脉血中的乳酸水平下降。与此同时，前肠（胃和肠）中的VFA产生停止，而后肠中的VFA产生增加；当兔子禁食粪便时，盲结肠和门静脉血中的VFA富集程度更高。在有食粪癖的兔子中，肝脏清除了约15%到达它的乳酸，而乙酸盐、丙酸盐和丁酸盐的摄取率分别为21%、59%和76%。没有食粪癖的兔子的相应值为：20%乳酸、43%乙酸盐、70%丙酸盐和84%丁酸盐。外周血中乙酸盐的血浆静脉-动脉差异为负：对照组的摄取率约为16%，没有食粪癖的兔子为27%；其他VFA未涉及。动脉血中VFA水平的变化不显著；只有乳酸浓度下降了约30%。防止食粪癖增加了消化产物，兔子后肠中VFA的吸收以及它们在肝脏和肝外组织中的代谢也增加了。
