MANHATTAN, Kansas, Aug. 9 -- Kansas State University issued the following news: * * * Investing in Kansas' first line of defense against animal disease Kansas Veterinary Diagnostic Laboratory drives $2.5 billion economic impact for state By Rafael Garcia Every spring, John Irvine and his ranch hands line up 300 head of cattle to make one of the biggest investments they can in the future of the seventh-generation Kansas ranch: they collect a few vials of blood to send to the Kansas Veterinar  more