Comparative Anatomical Studies on the Uterus of Pati and Chara-Chemballi Ducks during their Laying Periods

In the present investigation, twelve eachPati and Chara-Chemballi ducks were utilized at 42 weeks of age. The uterus was collected immediately after death and studies were made on it. The uterus was a sac-like dilation between the isthmus cranially and the vagina caudally and was located just ventral to the synsacrum. The length, breadth, thickness and weight of uterus of Chara-Chemballi ducks were significantly higher than Pati duck. The mucosa of uterus of both Pati and Chara-Chemballi duck showed many leaf shaped folds. These folds were mainly primary, secondary and tertiary types. In some primary folds concave surface were also present. The surface epithelium of uterus was pseudostratified ciliated columnar in both Pati and Chara-Chemballi ducks. The mean height of lamina epithelialismucosae of uterus was 28.058±0.367μm in Patiduck and 33.228±0.234 μm in Chara-Chemballi duck. The surface epithelium and glandular epithelium showed moderate PAS positive reaction in both Pati and Chara-Chemballi ducks. Histologically, there is no significant difference between the Patiand Chara-Chemballi ducks. However, the height of lamina epithelialis mucosae of oviduct was significantly higher in Chara-Chemballi duck than Pati duck.