These are necessary first steps of actual fertilization. The SPA is not an unconditional test for fertility because it does not analyze other aspects of sperm function. Cervix The opening to the uterus from the vagina. However, during this same period, the ability of sperm to bind and penetrate the egg, as determined by in vitro sperm-egg penetration, was similar between sperm from C and H males. The eggs are fertilized in the laboratory.
These antibodies can lead to destruction of the sperm and reduced fertility.
This increase in LH is the "LH surge" and may be detected by testing the urine. These are necessary first steps of actual fertilization. Ovulation The discharge of a secondary oocyte egg from the ovary. Vagina The female organ of sexual intercourse, where the sperm are deposited. When the sperm count is extremely low or of poor quality, or if the sperm must be taken from the epididymis or testicle, this technique can be very useful. A few days after fertilization, a cell is removed from a developing embryo to test for genetic disorders. On a weekly basis, semen was pooled by room and inseminated into 12 groups of 10 hens each 2 groups per room.