By Kuo, Chih-Chi Chang Cheng-Hung, Journal of the Chinese Society of Veterinary Science, 1994
Description
Clinical and surgical findings in ninety-two dairy cows with left displacement of the abomasum (LDA) in the past ten years in northern Taiwan were reviewed to determine the profiles of the disease. Thirty-six cases (39.1%) were found in the first lactating cows (P lt 0.001) with higher incidence in April and May (0.01 gt P gt 0.005) ; forty-three (46.7%) of the cases were developed in cows during the first week of parturition (0.01 gt P gt 0.005) ; and sixteen cases (17.4%) occurred in late pregnancy. The most often concurrent clinical pathological change was ketonuria. Eight cases (8.7%) recurred or developed right displacement of abomasum (RDA) subsequently in the same or the proceeding productive period. Two of the 92 LDA cases had had a history of cured RDA by medication in the last productive period. The total culling rate in these LDA cows was 7.6% (7 cases), the main cause for the animals being culled were severe lameness, gangrenous mastitis, recurrent terminal torsion of abomasum, and subdiaphragmatic caseous abscess
Clinical and surgical findings in ninety-two dairy cows with left displacement of the abomasum (LDA) in the past ten years in northern Taiwan were reviewed to determine the profiles of the disease. Thirty-six cases (39.1%) were found in the first lactating cows (P lt 0.001) with higher incidence in April and May (0.01 gt P gt 0.005) ; forty-three (46.7%) of the cases were developed in cows during the first week of parturition (0.01 gt P gt 0.005) ; and sixteen cases (17.4%) occurred in late pregnancy. The most often concurrent clinical pathological change was ketonuria. Eight cases (8.7%) recurred or developed right displacement of abomasum (RDA) subsequently in the same or the proceeding productive period. Two of the 92 LDA cases had had a history of cured RDA by medication in the last productive period. The total culling rate in these LDA cows was 7.6% (7 cases), the main cause for the animals being culled were severe lameness, gangrenous mastitis, recurrent terminal torsion of abomasum, and subdiaphragmatic caseous abscess
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