Ear tag be deferred to some later date. Pigs, cattle and sheep are frequently earmarked with pliers that notch registered owner and/or age marks into the ear. Mares on large horse breeding farms have a plastic tag attached to a neck strap for identification; which preserves their ears free of notches. Dairy cows are sometimes identified with ratchet fastened plastic anklets fitted on the pastern for ready inspection during milking; however NLIS requirements apply to cattle - including both dairy and beef animals. More commonly coloured electrical tape is used as short term ankle identifiers for dairy animals to identify when one
Alexander Smits Alexander Smits Dr. Alexander Smits (born December 25, 1948) is the Eugene Higgins Professor of Mechanical and Aerospace Engineering at Princeton University. He is also the director of the Gas dynamics laboratory at Princeton. Smits received his Bachelor of Science in mechanical engineering from the University of Melbourne, Australia in 1970. Subsequently he received his Ph.D. from Melbourne in 1975. Smits is an expert in the areas of turbulence and fluid mechanics, and is also the chief editor of Efluids.com, a website designed for students and researchers to share information about fluids. He is also currently an associate editor for