Page 436 - Equine Clinical Medicine, Surgery and Reproduction, 2nd Edition

Reproductive system: 2.1 The female reproductive tr act 411

VetBooks.ir 2.3 2.4 2.5

Figs. 2.3–2.5 (2.3) Ultrasonographic image of an ovary showing an early developing corpus luteum.
(2.4) A mature corpus luteum showing a more organised echogenic structure compared with the one in 2.3. (2.5)
A normal variation on a mature corpus luteum with a central fluid-filled lacuna (lac).

2.6 2.7

Fig. 2.6 Transverse
transrectal ultrasonographic
image of a uterine horn
showing moderate
endometrial oedema during
oestrus.

Fig. 2.7 Transverse
transrectal ultrasonographic
image of a uterine horn
showing marked endometrial
oedema and intraluminal
fluid. Oedema of this degree
may be considered excessive.

Endocrinology Records
Serum progesterone concentration: >3.18 nmol/l Clinical records are essential and should be made
(1 ng/ml) in dioestrus; <3.18 nmol/l (1 ng/ml) in after each ultrasound examination. They allow
oestrus. re-examinations to be organised and mares to be