Canine TSH may be measured at 30 minutes as part of a TRH stimulation test in the diagnosis of secondary hypothyroidism. Normal dogs should increase cTSH by at least 0.4 ng/mL. Total T3 (TT3) â The analysis of TT3 is of little value in the diagnosis of hypothyroidism principally because of the high prevalence of cross-reacting T3 autoantibodies (T3AA) in hypothyroid dogs.
The forward (leading) edge of the sail is called the luff, which, in a mainsail, is parallel to the mast. The aft (back) edge of a sail is called the leech (also spelled leach), which is opposite the luff, and forms the hypotenuse of the triangle.
The water boatman has a distinctive appearance and can be told apart from its cousin the backswimmer both by its appearance and actions. The water boatman has 2 fore legs which are short and made for crawling, while the four hind legs are long and covered in hair. The hind legs are essentially converted into long oars that are built for swimming, hence the water boatman's name. The water boatman is not only a delicacy amongst fish, but humans as well. In parts of Mexico, water boatmen are consumed in large amounts where they are considered a delicacy. Flies modeled after the water boatman will typically resemble the back swimmer, with a long flat body and appendages hanging out the sides.