Sperm

1999). Despite the competition between possible sire, namely due to spermiophages from each male attacking foreign sperm, pooling semen will not have any adverse effects on the overall fertility of a commercial sample (Barnes et al. 1996) This can explain why both samples of fresh semen, namely treatments 1 and 2, showed little difference between each other. The treatment…

Crupina vulgaris Crupina vulgaris is a class A federal noxious weed under the asteraceae family and dicot group, and is part of the spermatophyta subdivision that produces seeds (Natural Resources Conservation Service 2016). C. vulgaris is commonly known as Bearded creeper or Common crupina. It is a winter annual weed that can grow 1 m or 1 to four feet tall (Crupina vulgaris 2015) with three sterile and two fertile flowers (Crupina vulgaris (bearded creeper) 2011) pink to purple in color. C.…

The male reproductive system is responsible for producing, transporting, and maintaining sperm. It's also responsible for producing male sex hormones. These sex hormones actually take on the role of being responsible for maintaining the male reproductive system. Unfortunately, the male reproductive system also takes on the role of discharging its sperm into the female reproductive tract during sex. The major organs that make up your male reproductive system include the following: bladder,…

Hibiscus rosa-sinensis is the scientific name for Hibiscus. Other places around the word may call it Chinese hibiscus, China-rosa, and Hawaiian hibiscus (USDA, ARS, National Genetic Resources Program). Hibiscus is native to East Asia, but may be seen in numerous places. It is widely cultivate around the world. Hibiscus rosa-sinensis came from the scientific classification: Kingdom is Plantae; unranked are Angiosperms, Eudicots, and Rosids; Order is Malvales; Family is Malvaceae; Genus is…

Introduction I chose to write about the most versatile animal that I can think of, the coyote! The coyote is a native to my original home, Wisconsin and to my current home, Colorado! The coyote is a mammal, just like us! This being said, they are many similarities in the make up of this animal! Coyote They coyote comes from the classification of eukaryote. From the “root” of the branch, comes both animals and plants. Animals and plants are sister taxa, meaning that they branch off from eukaryote…

normal supply blood to the reproductive glands inside the scrotum that is the sack of skin that holds the testicles. This type is disorder leads to blockage of blood, which is the main cause of male infertility since it leads to reduced sperm quality and also less sperm production. It is treatable and heals permanently especially after the use of natural products. These products have very minor/ no side effects which can be managed in case they occur. Normally, if you have veins inside the…

to find and get rid of diseases of the parent’s babies. Throughout the years scientists have used IVF and PGD for more physical and characteristical traits like blond hair or blue eyes. During the process ofTo do IVF, scientists combine the egg and sperms provided to form an embryo, take an embryo and an egg with a petri dish, engage in tests, and then puts the fertilized egg inside the mother. The outcome or the end result is known as a designer baby, a child that is or has went through the IVF…

There are lot of interesting fun facts in the integument, urinary, or reproductive systems. The skin is the largest organ of the body. In a normal male about 5 billion sperm mature on daily basis. The average penis size is less than 6 inches long. The human bladder can stretch to hold about 400 ml of urine. If one kidney fails to function and is removed, the other kidney can increase in size by 50% within two months to handle the entire filtration. I chose to pick three fun facts from the…

Andrew Wittman Biology 152 Lab Section 409 3/23/2015 PURIFICATION OF SPERM WHALE APOMYOGLOBIN AND THE ORIGIN OF ITS HELICAL FOLD Abstract The purpose of this research is to understand how secondary structures of a protein, in this case sperm whale apomyoglobin, affect the denatured state of that protein. The scientific community has been working under the impression that once denatured by urea, a protein loses all of its secondary structure. In this research the effect that apomyoglobin’s…

Summary Heat stress has shown to be detrimental to male reproduction, affecting the testicles and spermatogenesis. In 2010, a study was conducted in Iran using male lambs which were exposed to chronic heat stress. The objective of the study was to investigate the effect of moderate and high temperatures on testicular structures and on testosterone and cortisol concentrations in the developing ram lambs. Twenty fall born ram lambs were randomly assigned to a group: either to an outdoor heat…