Renin is a protein (enzyme) released by special kidney cells when you have a decreased salt (sodium) level or low blood volume. If you have high blood pressure, your doctor may order a renin and aldosterone test to help determine the cause of your elevated blood pressure. Test results can help guide your doctor in choosing the correct treatment.
Quick Answer. Snakes can have live births, or they can lay eggs in order to have babies. Snake can reproduce every one to three years, and they can have up to 150 snake babies at a time. Keep Learning.
When gerbils mate, they usually have about six babies in a litter. They mate again as soon as the babies are born, so a second litter will come even if you remove the dad when the first litter arrives.The initial gestation is about 24 days.A nursing female gerbil will have a delayed gestation and usually be pregnant with the second litter for about five weeks. Male gerbils make great fathers and raising the babies is most successful when the dad is in with the mother gerbil to help out.ou can get a male gerbil neutered. Just make sure you find a small animal veterinarian who has done this procedure with high frequency and success in the past. The cost varies widely depending on the part of the country and the animal hospital, but likely will cost $100 at a minimum.