Semen

You are watching your favorite show on television. The show is in its season finale! It 's getting intense and it has you on a rollercoaster of emotions. Suddenly, the show goes straight to commercials. You think to yourself, "What is the purpose of a commercial?! Life would be better off without advertisements." Commercials are the activity or profession of promoting a product, service, or event in a public medium in order to promote sales. An attempt to achieve higher sales, commercials aim to…

Does sex semen in cattle lower the percentage of conception? The birth of a female calf in the dairy industry eventually leads to having another cow in the milking rotation. Which helps to increase milk production for years to come. A bull that is born are not as important and sold to a company for them to raise as beef. While in the beef industry heifer, calves are useful to replace cows in the herd but the bull calves are the ones that bring the most income in the end. In the case of…

namely in commercial turkeys due to increasing size of males, however development on AI began in the 1930’s. In chickens, semen is collected from the rooster and can be mixed with an extender, to be used immediately or stored for future use. Poultry semen, unlike semen of domestic mammalian, is prone to freeze damage, therefore, rather than being cryogenized, rooster semen is refrigerated for up to 24 hours (Donoghue & Wishart 2000). To achieve fertilization, ovulation and insemination must…

Cryopreserved stallion semen used for Artificial Insemination (AI) is on the rise due to the amount of breed registries allowing this method to be incorporated into their breeding programs. The pregnancy rates using cryopreserved semen are currently still low due to the lack of proficiency in the post-thaw motility. When comparing the use of frozen semen to fresh semen for AI in mares the success rate is <75% of what is achieved by using fresh semen (6). The cryopreservation success rate is…

Although, it if blood is present in urine, saliva or semen it may detect the trace amounts. The Acid Phosphatase, PSA, and Christmas Tree tests are specific for analyzing semen and will not react to other blood or saliva, but may react with vaginal fluids. Finally, amylase enzymes are present only in saliva and the small intestine. The Amylose Azuretest, starch-iodine…

Glutathione addition in semen extender up to a level of 2 mM was found to be protective against the damaging effects of free radicals, beyond that no protective effects were found in bull spermatozoa (Bilodeau et al., 2001). The addition of. .glutathione to the semen extender prevented the loss of sperm motility by inhibition of lipid peroxidation caused by ROS in frozen thawed bull semen (Bilodeau et al., 2001) and goats (Sinha et al., 1996). Moreover, glutathione…

The term artificial insemination can be identified as the procedure in which a female animal is fertilized by humans using methods other than the natural fertilization methods. In agriculture, especially the industrial sector, the principal of artificial insemination is extremely important to the business in all types of animal based agriculture from large ruminants like cows to chickens. Artificial insemination is important, in the industry, because of factors such as genetic variation,…

age. This virus is usually transmitted during breeding, but can also be transmitted by aerosol, venereal, congenital routes or indirect contact from fomites. In addition, stallions can be carriers of EVA and will continue to shed the virus in their semen. EVA is not a zoonotic or reportable disease. Clinical signs of EVA may often be difficult to detect due to the fact that in many cases the host is asymptomatic. When symptoms are noticeable, the following may be observed: fever, leukopenia,…

are having difficulty conceiving, both partners should be thoroughly evaluated. Potential causes There are numerous reasons for male factor infertility. Some are caused by physical problems that prevent the sperm from being ejaculated normally in semen. Others affect the quality and production of the sperm itself. Some of the…

central for antioxidant system regulation in the body. Se-dependent enzyme glutathione peroxidase (GSH-Px) is the most studied selenoprotein in swine production. However, roles of other selenoproteins in boar semen production and maintenance of semen quality also need to be studied. Boar semen is characterised by a high proportion of easily oxidized long chain polyunsaturated fatty acids and requires an effective antioxidant defense. The requirement of swine for selenium varies depending on many…