Feedlot Animal Waste Compared with Cottonseed Meal as a Supplement for Pregnant Range Cows

Three groups of pregnant beef cows grazing dry native annual range were either supplemented with pelleted cottonseed meal (0.90 kg/head daily), a pelleted mixture of 75% feedlot manure-25% barley (ad lib.), or received no supplementation for a period of 84 days. Cows were induced to consume the manure pellet on range by accustoming them to the manure-barley pellet in a preliminary period of feeding in a drylot. Individual cow variation in intake of manure supplement was similar to that found for the cottonseed meal supplement. A marked response occurred to both supplements as measured by cow weights at calving and weaning weight of the calf. Cows given the manure-barley pellet had a higher body weight than cows given the cottonseed meal supplement, but intake of supplement was much greater for those given the manure-barley pellet. The dry matter digestibility of the feedlot manure was 26.1%.This material was digitized as part of a cooperative project between the Society for Range Management and the University of Arizona Libraries.The Journal of Range Management archives are made available by the Society for Range Management and the University of Arizona Libraries. Contact lbry-journals@email.arizona.edu for further information.Migrated from OJS platform August 202