Male Reproductive system Male reproductive system of birds

Male Reproductive system • Male reproductive system of birds is extremely simple, consisting of two testes, each having an epididymis and vas deferens. • The testis is located along the backbone within the abdominal cavity. • It is light yellow in the form of ellipsoid. • However, they appear red because of the blood vessels on the outer surface.

Female reproductive system • Poultry produce many eggs throughout their lives. • Each egg carries an ovum and can be fertilized while the chicken is in the body. • The egg white and shell are stored on egg yolk after fertilization. • Whether or not the chicken is inseminated with semen, the same number of eggs is constantly.

• Fertilized and non-fertilized eggs have the same chemical composition. • Laying hens cannot lay more than one egg per day. • The sperm storage tubes in the chicken vagina allow mating or artificial insemination to occur at intervals. • Some of the spermatozoa are released from these tubes before ovulation and the sperm and egg yolk reach the infindibulum.

• The hen's sperm storage level is quite good. Poultry can give fertilized eggs for 28 days after the first insemination. • Optimum fertilization time with last insemination is considered 6 -12 days in goose, duck, quail and chickens.

• During incubation, left ovary develops. • Ovary; thousands of small egg cells (follicles) consists of clusters. • When the animal reaches sexual maturity, the follicles in series begin to grow. • Follicles, which were initially grayish-white, turn yellow to bright yellow.