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Mucosal changes associated with abomasal ulceration in veal calves
G R Pearson1, D B Welchman, M Wells
1Department of Pathology, University of Bristol, School of Veterinary Science, Langford.
The Veterinary Record
|December 12, 1987
Summary
Veal calves showed significant abomasal mucosal changes, including increased depth and mucin loss associated with erosions and ulcers. Some also exhibited increased sulphated mucins, indicating potential dietary or environmental impacts on calf health.
Area of Science:
- Veterinary pathology
- Animal science
- Gastroenterology
Background:
- The abomasum is the fourth stomach compartment in ruminants.
- Understanding abomasal health is crucial for calf welfare and productivity.
- Veal calf rearing systems may influence gastrointestinal physiology.
Purpose of the Study:
- To investigate histopathological changes in the abomasal pyloric mucosa of veal calves.
- To compare these changes with conventionally reared calves.
- To identify alterations in mucin distribution and composition.
Main Methods:
- Histological examination of the abomasal pyloric region.
- Assessment of mucosal depth.
- Histochemical staining for mucins (including sulphated mucins).
- Comparison between veal and conventionally reared calves (12-18 weeks old).
Main Results:
- Veal calves exhibited increased mucosal depth.
- Mucin depletion was observed in areas of erosion and ulceration in veal calves.
- Five out of seven veal calves with lesions showed increased sulphated mucins in adjacent mucosa.
- Focal mucin loss occurred in one veal and one conventional calf without lesions.
Conclusions:
- Veal calf rearing is associated with abomasal mucosal pathology, including erosions and ulcers.
- Alterations in mucin content, particularly increased sulphated mucins, may indicate a response to injury or inflammation.
- Further research is needed to elucidate the specific causes and implications of these abomasal changes in veal calves.