Assuming that some individuals were probably not yet mature, the average frame score was approximately 5. This is probably about optimum for most production conditions in Central Texas. Phoenix Scientific, Inc., is now marketing ivermectin as Phonectin TM Pour-On. These can be obtained from Texas Ag. USDA researchers report that cattle genetics plays a major role in parasite transmission and development of immunity.
Most cattle become resistant to parasites, reducing egg output.
But some individuals remain susceptible, continuing release of large numbers of eggs and ensuring continued pasture contamination. When cattle get cheap, meat prices don't go down much. Of course, the reverse is true also, but we really don't want to admit that. Pete Bonds, Saginaw cattleman, says he realized several years ago there was an easy way to combat the effect of wide fluctuations in live prices. He simply owns stock in one of the large meat packers.