het paard zet meer kracht zodat er lucht in de maag terecht komt. gezien een paaard niet kan boeren (neej dat kan ie helaas niet ) zit ie met lucht in de maag. daarom eten de meeste zware luchtzuigers slecht en ze kunnen koliek krijgen. .
Gaan we weer: luchtzuigers slikken de lucht niet in. Dit hebben veel mensen (incluis veeartsen) jarenlang gedacht, maar recent onderzoek (universitair) heeft aangetoond dat dit niet zo is. De lucht komt niet in de maag terecht, maar wordt gewoon weer uitgeademd...
Ik kopieer hier een deel van het gepubliceerde artikel.
This research was undertaken at the department of clinical veterinary science in 1995 at the University of Bristol in the United Kingdom (UK) and reported in a special supplement to the Equine Veterinary Journal published by the British Equine Veterinary Association.
Reporting on the research was J.G. Lane, BVetMed, FRCVS. "It has widely been stated," Lane wrote, "that horses which exhibit either of these abnormal behavioral patterns (cribbing and wind-sucking) swallow air (aerophagia), and it is also believed that the introduction of large quantities of air into the digestive tract predisposes horses which crib-bite to colic and/or poor bodily condition.
"The purpose of this presentation is to report the results of endoscopic and fluoroscopic studies of the pharyngeal structure of horses during the act of crib-biting/windsucking," he continued. "The major conclusion has been that deglutition (swallowing) does not occur as part of the stereotype and that 'aerophagia' is an inappropriate synonym for this stereotype." (A fluoroscope is an instrument used to observe an internal structure within the body by means of real-time X rays.)
The study involved horses which were known cribbers. The horses stood in stocks for both stages of the investigation and a wooden bar covered with coconut matting was placed at the front of the stocks to provide an inducement to crib.
Videotape recordings were used so that there could be a slow motion analysis of both endoscopic and fluoroscopic images. When the researchers analyzed the data, they were able to follow the sequence of events that occur during cribbing from beginning to end. Researchers' conclusions included the following:
Swallowing air is not a feature of cribbing/wind-sucking. The events recorded during the stereotypic sequences did not remotely resemble swallowing.
The source of the characteristic noise associated with this oral stereotypy results from an inrush of air into the upper part of the esophagus.