Studies on reproduction in the goat. I. The normal genital organs of the non-pregnant goat.

1. A study of 221 genital organs from non-pregnant goats is reported. 2. The ovaries of the goat are relatively large. They are usually round or oval-shaped, but other shapes frequently occur (heart-shape or almost horseshoe-shape). The size, shape and consistency will vary with the presence of follicles or corpora lutea. The average weight of the two ovaries is found to be 2.37 g for the right one and 2.14 g for the left. 3. The uterine horns are long with a pronounced spiral formation. The uterine body is short, 0.5—3.5 cm. Complete or partial black pigmentation of the uterine mucous membrane is found in 5—10 % of the material. 4. The average length of the cervix is found to be 5.7 cm. The cervix is divided by 5—8 transversal folds. 5. The average length of the vagina and vestibule combined is about 11 cm. A black pigmentation of the mucous membrane of the vestibule, involving all or only part of it, is observed. 6. The size of the corpus luteum is recorded. There is no difference in the size of the corpus luteum whether it is located in the left or right ovary or whether there are one or two corpora lutea present in the same ovary.