Generating Inbred Mice. Inbred Strains. A strain is defined as inbred when it has been mated brother x sister for 20 or more consecutive generations (F20). All offspring can be traced back to a single ancestral breeding pair in the 20th or subsequent generation.
suction head. The energy per unit weight of fluid on the suction side of a pump. 1  Facebook.
1 If the suction head of a centrifugal pump is positive or if the pump is used for circulating purpose then priming pump is not required. 2  When the suction head is positive as soon as opening the suction valve the system including suction line is filled with water, this water expels the air in suction side.