Blood samples are taken from piglets on day one after birth, mixed with ammonia sulfate to precipitate immunoglobulin, put into a microcapillary tube, and spun so the precipitated immunoglobulin settles to the bottom.
Silver City and Grant County offer a little of everything: from quiet fly fishing in genuine mountain wilderness, rocking blues and music festivals in a historic downtown, off-road motor touring across hundreds of miles of scenic roads and lots more.
City of Rocks state park, Chihuahuan desert, New Mexico. Photograph: Alamy. New Mexico has no shortage of interesting rock formations, and this cluster of boulders, near Silver City in the southwestern corner of the state, lives up to its odd name.