Changes

==Description==

==Description==

This is much less dramatic than a displaced [[Forestomach - Anatomy & Physiology|stomach]] in the dog, and develops chronically.  

This is much less dramatic than a displaced [[Forestomach - Anatomy & Physiology|stomach]] in the dog, and develops chronically.  

The [[The Abomasum - Anatomy & Physiology|abomasum]] hangs loosely by the omentum, it can move from its normal position to left displcement where it becomes trapped under the rumen or a right displacement which may become abomasal [[Volvulus, Intestinal|volvulus]] and [[Torsion, Intestinal|torsion]]. Occurs most frequently in heavy yielders on high concentrate diets usually in the first 6 weeks of gestation. Sometimes cases do occur before calving this is in late gestation and accounts for 5% of cases.

The [[The Abomasum - Anatomy & Physiology|abomasum]]is the fourth stomach of the cow and hangs loosely by the omentum. It can move from its normal position to left displcement where it becomes trapped under the rumen or a right displacement which may result abomasal [[Volvulus, Intestinal|volvulus]] and [[Torsion, Intestinal|torsion]].  

Rearrangement of abdominal viscera in pregnancy is thought to be an important aetiological factor, however reduced abomasal motility is thought to be the primary aetiological factor. Once the abomasum is displaced gas production by the  

Rearrangement of abdominal viscera in pregnancy is thought to be an important aetiological factor, however reduced abomasal motility is thought to be the primary aetiological cause. Once the abomasum is displaced gas production by the organ continues causing distension and further displacement.

==Signalment==

==Signalment==

A disease of the cow affecting mainly high yielding dairy cows on high concentrate, fromlate pregnancy to ....post partum period.

A disease of the cow affecting mainly high yielding dairy cows on high concentrate diets. Usually occurs in the first 6 weeks of lactation. Sometimes displacemnet does occur before calving, this is in late gestation and accounts for 5% of cases.  

 

==Diagnosis==

==Diagnosis==

Diagnosis is made on clinical signs in combonation with auscultation findings. On listening to over the suspected displacement region pings can be heard.

Diagnosis is made on clinical signs in combonation with auscultation findings. On listening to over the suspected displacement region pings can be heard.