Theriogenology Question of the Month

Abstract

HistoryA 4-year-old Holstein cow from the Washington State University dairy was artificially inseminated 2 times during her second lactation. Pregnancy was diagnosed via transrectal palpation and confirmed with ultrasonography 33 days after the second artificial insemination. One fetus with an apparently normal heartbeat was detected during ultrasonography. The pregnancy was confirmed at 75 and 185 days of gestation via transrectal palpation, and the cow calved after a gestation of 291 days. A clinically normal healthy calf was born, which was followed by the expulsion of a separate mass of hair-covered fetal tissues (Figure 1). The fetal tissues were submitted to the Theriogenology Service at Washington State University for evaluation.The mass measured approximately 30 X 20 X 15 cm (12 X 8 X 6 inches) and weighed 4.41 kg (9.7 lb). It was ovoid in shape, and approximately 80% of its surface was covered in black and white hair. It was asymmetric with a suggestive cranial-caudal orientation, and there were anatomic structures similar to a tail and anus at the caudal end. A 10-cm-diameter fluid-filled cystic structure was evident on the ventral aspect, near the location at which fetal membranes exited the mass. All fetal membranes were not submitted for examination. Figure 1-Photograph of a hair-covered fetal mass that was expelled after the birth of a healthy Holstein calf. There is a cystic dilatation in the ventral aspect of the fetus and a placental attachment projecting caudally. Bar = 30 cm.

Beyaz Galloway Sığırda Amorphus Globosus Olgusu

“…Further, the present case had no adipose and necrotic tissues. In agreement with previous reports showing various bone formations in the spherical body forms [10,12,16] , we found lower and upper jaws with teeth and remnants of a bony tail with cartilage in the present case.…”