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Leaky gut is difficult to recognise and much remains unclear. By offering a well- mixed and balanced ration throughout the day, cattle


farmers can go a long way to prevent gut problems.


More focus on cow gut health


Leaky gut syndrome receives a lot of attention. Yet, questions remain about the cause, consequences and treatment of it.


BY KRISTEL VAN VEEN L


ittle is known about the influence of the gut on dairy cow health. Leaky gut syndrome has received a lot of attention lately, caused in part by the lectures of American researcher Lance Baumgard, who gave


presentations in multiple countries. Leaky gut can occur when the intestinal wall is damaged, for example by inflam- mation, stress situations or a temporary inability to eat. This causes the gut’s barrier function to be disrupted, which in turn can lead to toxins and bacteria leaking into the blood- stream through the intestine and the other way around. The balance in the intestinal wall can easily be disturbed because it needs to be able to let nutrients pass through yet stop harmful substances and bacteria from entering.


Damaged intestinal wall Because the intestinal wall is thinner than the rumen wall, it


can damage more easily. The symptoms of rumen acidosis and intestinal acidosis are difficult to discern. A cow with a leaky gut may seem completely fine on the outside. In some cases, gut slime and (surface) particles of the intestinal wall can be found in the manure. Unfortunately there are no blood or manure test available to determine leaky gut syn- drome. “The gut can only be looked at during a necropsy. This is not often done in day to day practice and even then, it re- mains questionable whether the issues occurred because of gut problems or because of another primary cause,” says Ant Koopmans, researcher at Schothorst Feed Research.


Much remains unclear In the Netherlands, nutritional research into leaky gut in cattle has not been conducted yet. However, the Schothorst Feed Research is preparing to look into biomarkers to


▶ GUT HEALTH | DECEMBER 2020 27


PHOTO: ANNE VAN DER WOUDE


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