Glenn Selk http://www.cattlenetwork.com/editorial/glenn-selk RSS Feed for Glenn Selk en-us Mon, 13 May 2013 18:27:20 GMT Look back at calving season and start to make improvements now http://www.cattlenetwork.com/editorial/glenn-selk/Look-back-at-calving-season-and-start-to-make-improvements-now-207243871.html Only 1 to 2 months ago the spring calving cows were calving, the temperatures were colder and the calving pastures were covered with muck and manure. One calving season versus two calving seasons http://www.cattlenetwork.com/editorial/glenn-selk/One-calving-season-versus-two-calving-seasons-193086551.html The beef industry has seen a “down-sizing” due to the drought affecting many cow herds. Much has been written and spoken about the need to “rebuild the cow herd.” Signs of impending calving in cows or heifers http://www.cattlenetwork.com/editorial/glenn-selk/Signs-of-impending-calving-in-cows-or-heifers-189723271.html As the spring calving season begins, the cows will show typical signs that will indicate parturition is imminent. Nitrate toxicity and the first winter snow storm http://www.cattlenetwork.com/editorial/glenn-selk/Nitrate-toxicity-and-the-first-winter-snow-storm-178962811.html Almost as predictable as the coming of the winter season will be the quickly spread horror story of the death of several cows from a herd that was fed "the good hay" for the first time after the snow storm. Cow-calf corner: Utilizing mineral supplements http://www.cattlenetwork.com/editorial/glenn-selk/Cow-calf-corner-Utilizing-mineral-supplements-174995071.html Glenn Selk tells producers how to utilize mineral supplements to prevent grass tetany in cattle grazing on wheat pasture. Mineral program for cows on wheat pasture http://www.cattlenetwork.com/editorial/glenn-selk/Mineral-program-for-cows-on-wheat-pasture-174209401.html Many Oklahoma cow calf producers will use wheat pasture as a major source of winter feed for beef cows. Growing bred replacement heifers http://www.cattlenetwork.com/editorial/glenn-selk/Growing-bred-replacement-heifers-170052326.html Bred replacement heifers that will calve in January and February need to continue to grow and maintain body condition. The impact of hot weather on bull fertility http://www.cattlenetwork.com/editorial/glenn-selk/The-impact-of-hot-weather-on-bull-fertility-164289086.html Several research trials have been conducted throughout the years looking at the effect of high temperatures on bull fertility. Certainly that research has importance to many Southern Plains cattlemen in the summer of 2012. Heat stress can reduce pregnancy rates http://www.cattlenetwork.com/editorial/glenn-selk/Heat-stress-can-reduce-pregnancy-rates-162590586.html The effects of heat stress on reproductive performance of beef cows have been discussed by many animal scientists in a variety of ways. This year test the forage before you cut! http://www.cattlenetwork.com/editorial/glenn-selk/This-year-test-the-forage-before-you-cut--160249905.html Summer has definitely arrived in Oklahoma! Hot dry summer weather brings about heat and drought stress on summer annuals.