Bull Sperm Fertility Factors and Testing Options

Introduction The female reproductive side is attracting attention. If a human couple can not pregnant, most people would think "What kind of problem is she having?" They know little about it, and men have many potential infertility problems. In 2002 the Center for Disease Control and Prevention (2013) conducted a nationwide survey. This indicated that about 11% of women aged 15 to 44 in the United States had some kind of pregnancy difficulties. According to the same report, 5% of men under the age of 45 also had fertility issues.

Bulls became fertile in 7 months of age. A simple test of fecundity is to measure the scrotum circumference: When it reaches 28 cm (11 inches), the small bulls seem to be fertile; the bulls of a complete adult bull May exceed 40. cm (16 inch) bull has a fibrous elastic penis. Considering a small amount of erectile tissue, there is little expansion after erection. The penis is very stiff when it is not upright and hard when it is upright. Erections do not significantly affect the protrusions, but more is done by relaxing the penis muscles of the retractor and straightening the S-shaped bend. Induction of ovulation can be manipulated to produce agricultural benefits. For example, synchronize bovine ovulation to promote dairy farming

This concept occurs when sperm fertilizes human eggs. During each menstrual cycle, exposure to sperm may lead to about 6 days of pregnancy - 5 days leading to ovulation and 1 day after ovulation. Ovulation (the release of eggs from the ovary to the oviduct) usually occurs 13 to 15 days before the start of each period (1). Once the eggs are released, it can be fertilized for about 12-24 hours. As with your menstrual period, the ovulation time may be different between cycle and cycle, and you may have a strange cycle where you will not ovulate at all. Sperm can survive for up to 5 days in the body. This means that if you are doing an unprotected "vaginal penis" sex (or other form of insemination) during the first few days of ovulation, the sperm can survive long enough to fertilize the egg and pregnant It means that there is a possibility of causing it. This time zone that can be pregnant is called "fertile window"