Molecular genetic tools provide a method for improving the breeding selection of chickens (Gallus gallus). Although some studies have identified genes affecting egg quality, little is known about the genes responsible for oviduct development. To address this issue, here we used a genome-wide association (GWA) study to detect genes or genomic regions that are related to oviduct development in a ...

Egg-laying hens are important candidate bioreactors for pharmaceutical protein production because of the amenability of their eggs for protein expression. In this study, we constructed an oviduct-specific vector containing tissue plasminogen activator (tPA) protein and green fluorescent protein (pL-2.8OVtPAGFP) and assessed its expression in vitro and in vivo. Oviduct epithelial and 3T3 cells w...

The Physiology and Endocrinology Symposium titled “Sperm-Oviduct Interactions in Livestock and Poultry” was held at the joint annual meeting of the American Society of Animal Science, American Dairy Science Association, Poultry Science Association, Asociación Mexicana de Producción Animal, and Canadian Society of Animal Science, with partial sponsorship by the EAAP (European Federation of Anima...

RNA was extracted from oviduct, shell gland, and liver of chicks treated with diethylstilbestrol and a combination of diethylstilbestrol and progesterone. Preparations containing 500 or 2500 mug of RNA were put in the oviductal lumen of diethylstilbestrol-treated chicks for 24 hr, and the avidin content of the oviduct was determined by measurement of [(14)C]biotin binding. The results of the pr...

The mammalian oviduct has long been recognized as an organ essential for successful reproduction. Bovine, ovine, porcine, and equine animal models have offered clear advantages for oviduct study related to gamete physiology, fertilization, and early embryonic development. Livestock species are amenable to surgical alteration of the reproductive tract, estrous cycle manipulation, gamete cryopres...

The Oviduct and Its Functions focuses on the role of the oviduct in reproduction. The book emphasizes that this organ combines factors such as environment, hormonal balance, and biochemical constituents to make reproduction possible. Composed of contributions that are divided into 13 chapters, the book presents the comparative anatomy, histology, and morphology of the mammalian oviduct. The sel...

Abstract Study question Is it possible to establish an in vitro model that recapitulating human oviduct investigate sperm-oviduct interaction Summary answer Three-dimensional (3D) oviductal organoid was established from either primary tissues or immortalized OE-E6/67 cell line, based on our protocol. What is known already The sperm reservoir formed maintain the fertilizing capacity of spermatoz...

The female reproductive tract is commonly referred to as oviduct in birds. The oviduct is a highly convoluted muscular duct, concerned with the transport of the ovum away from the ovary, with fertilization of the ovum and by the deposition of albumen, membranes and shell on to the ovum to form the finished egg [1]. Reproductive diseases in poultry causes high morbidity (35%), mortality (15%) an...

Egg production in oviparous vertebrates is assumed to be costly but the physiological basis of any costs remains unknown. The avian oviduct is a highly differentiated linear organ, with five functionally specific regions. Here we show that the oviduct regresses rapidly "from the top down" as soon as the more proximal regions have completed their function but while the distal regions still retai...

The effects of oviduct removal, oviduct displacement or sham-operation were studied in Japanese quail (Coturnix coturnix japonica). No significant differences were observed between the treatments for body weight, number of follicles larger than or equal to 6 mm diam., or number of ruptured follicles. Retraction or removal of the oviduct resulted in similar significant increases (P less than 0.0...