What does DA stand for?
Displaced Abomasum. (Abomasum=קיבה).
More commonly, LDA, left displaced Abomasum.
The abomasum should be on the bottom of the abdomen, but can become filled with gas and rise to the top of the abdomen (the animals back), when it is said to be ‘displaced’. The abomasum is more likely to be displaced to the left (LDA) than the right (RDA).