| dc.description.abstract | In recent years, problems associated with high milk yield in dairy cows have increased
considerably. Today, interdigital dermatitis (ID) is one of the most significant problems across
the dairy industry, threatening animal health and welfare and inducing serious productivity
losses. The etiology and mechanism of damage caused by this disease, which disrupts quality
of life, milk yield, and reproduction, have not yet been fully understood. In order to achieve
the study objectives, 40 biparous cows (3 years old – second calving) that had lameness
associated with ID from prepartum day 30 to postpartum day 60 (Study group) and 40
biparous cows (3 years old) without lameness symptoms during the specified period (Control
group) constituted the material of the present study. There was no difference in the levels of
non-esterified fatty acids in the blood samples collected from those animals during the dry
period (45-60 days before parturition; P=0.38). There were differences between the groups
in certain parameters, including beta-hydroxybutyric acid level in the postpartum period,
weight loss in the first month, number of ovarian cysts in the first 60 days, milk production
in the first month, and the first corpus luteum determination process. (P<0.001) There was
no difference between the groups in terms of reproductive parameters (mode of delivery,
litter viability, litter weight, litter weight, expulsion of membranes, etc.) and presence of
infection (acute puerperal metritis) during birth (P>0.05 for all parameters). In addition to
all of the above, Wohlfahrtiimonas chitiniclastica bacteria were isolated for the first time in
microbiological samples collected from ID, which is a significant condition for dairy cows
during the periparturient stage, contributing to the etiology of the disease, which has not
been understood so far | tr |
