Collagenase activity in follicle during ovulatory process of Japanese quail.

The Use of Sesame Meal in Diets of Japanese Quail

This study was conducted to investigate the effect of different levels of sesame meal (SM) on performance and carcass characteristics of Japanese quail. One hundred sixty day-old Japanese quail chick were equally distributed into 16 cage pens and reared form 10 to 42 days of age. The treatments consisted of SM0, SM50, SM100 and SM150. The diet for SM0 treatment had no SM (control), while those ...

Histomorphometric study of brachiocephalic artery of Japanese quail

Brachiocephalic arteries in quails are large arteries which are arising separately from the aortic arch. The aim of the present study was to determine the histomorphometric aspects of brachiocephalic arteries in the Japanese quail. The different layers of the brachiocephalic artery were studied quantitatively in 10, 20 and 60 days-old Japanese quail; (n = 6) and both sexes. Luminal diameter, th...

Paracrine actions of oocytes in the mouse pre-ovulatory follicle.

In mammals, ovulation requires a tight control of extracellular matrix modifications, within both the follicle wall and the inner mass of granulosa cells surrounding the oocyte, namely the cumulus cells. During the pre-ovulatory period, mural granulosa cells promote selective degradation of perifollicular matrix, resulting in the formation of a follicle rupture site. Conversely, cumulus cells s...

The Japanese Quail

Inbreeding depression in Japanese quail.

usefulness of Japanese quail (Coturnix coturnix japonica) as an expenT z n t a l animal was first pointed out about eight years ago (WILSON, ABBOTT and ABPLANALP 1959, 1961; PADGETT and IVEY 1959). These birds have steadily gained in popularity since then, but few quantitative genetic studies have been reported to date. The present investigation was designed to assess the response of Japanese q...