In LDA, as a result of abomasal hypomotility and gas production, the partially gas-distended abomasum becomes displaced upward along the left abdominal wall ...
www.merckvetmanual.org/mvm/htm/bc/21802.htm
Displaced abomasum (DA) is a repositioning of the abomasum (the fourth or true stomach) from its normal position on the right ventral abdominal wall. The abomasum becomes dilated with fluid and/or gas with subsequent migration to an abnormal position on the right or left side.
edis.ifas.ufl.edu/ds088
The abomasum occasionally may be displaced to the left of the rumen and upwards when its muscular wall loses tone and the stomach becomes filled with gas. This condition is left abomasal displacement (Figure 3). ... Figure 3b; Abomasum displaced to the left of rumen. ... Abomasum displaced to the left of rumen...
extension.missouri.edu/publications/DisplayPub.aspx?P=G... extension.missouri.edu/publications/DisplayPub.aspx?P=G7701
The rate of occurrence of Left Displaced Abomasum is as varied as herds and management. Percentages of LDAs can be as little as less than 1%, to greater than 25% of the herd. An acceptable level should be less than 3%.
www.moomilk.com/archive/nutrition-23.htm
Displaced abomasum (DA), principally left displaced, is a disorder of post-partum cows. The incidence rate appears to be rising and has been listed in two different studies as 3% (0 – 14% of dairies) or 5% (0 – 22% of dairies).
extension.usu.edu/dairy/files/uploads/htms/newsletters/... extension.usu.edu/dairy/files/uploads/htms/newsletters/disabs.htm
Step by Step Video Description of the Grymer/Sterner® R & T Procedure ... 1. Introduction and Prevention ... High Bandwidth for Fast Internet Connections;
cvm.msu.edu/alumni-friends/continuing-education/r-and-t
IMAGE: Left displaced abomasum, cow ... A) Normal topography of left abdominal viscera, cow. B) Left displacement of abomasum. Illustration by Dr. Gheorghe Constantinescu. Adapted, with permission, from DeLahunta and Habel, Applied Veterinary Anatomy, W. B. Saunders, 1986.
www.merckvetmanual.com/mvm/htm/bc/digad01.htm
The changes in abdominal dimensions and contour during late gestation and early lactation were investigated in 44 Holstein-Friesian cattle, 20 normal heifers and 17 normal cows, and seven cows that had a left displaced abomasum (LDA) surgically corrected by a right flank omentopexy in a previous lactation.
veterinaryrecord.bvapublications.com/cgi/content/abstra... veterinaryrecord.bvapublications.com/cgi/content/abstract/161/5/155
The milk yield and survival of 91 Holstein-Friesian dairy cows that had had a left-displaced abomasum (LDA) corrected laparoscopically were compared with those of 193 control cows matched for herd, parity and calving date.
veterinaryrecord.bvapublications.com/cgi/content/abstra... veterinaryrecord.bvapublications.com/cgi/content/abstract/162/23/743
Automatic download; [Begin manual download] ... Downloading the PDF version of:; J. Dairy Sci. Van Winden et al. 86 (4): 1465. (103K) ... This file is in Adobe Acrobat (PDF) format. If you have not installed and configured the Adobe Acrobat Reader on your system, see Help with Printing for instructions.
jds.fass.org/cgi/reprint/86/4/1465