Decide how many bottles (units) of semen that can be processed from the ejaculate. Each bottle should contain about 3 to 4 billion sperm and 80 to 100 ml fluid. The boar ejaculate may contain from a low of 10 to 15 billion up to over 100 billion sperm or enough sperm for 2 or 3 bottles up to 25 or more bottles. This number depends upon age, breed, frequency of collection, and individual boar. If you do not have a sperm counting device, you will have to follow some guidelines.
Freckles appear when the melanin, the dark pigment in skin, isn't distributed evenly -- certain areas of the skin have more than others, and that's why they appear a little darker. But what does sunlight have to do with the issue? If you're prone to freckles, you're more likely to have them the more you expose yourself to the sun.
1 Freckles appear on skin that has been exposed to the sun. 2  When you touch the skin, you cannot feel a freckle (unlike moles). 3  They are caused by a group of cells in the skin making more melanin (a dark pigment) than surrounding cells.