Life Sciences Commons^™

Nutrient Management In Beef Feedlots And Forage Replacement With Byproduct And Crop Residues, Annie J. Doerr

Department of Animal Science: Dissertations, Theses, and Student Research

Finishing cattle performance and mass balance was evaluated with Micro-Aid was fed in diets containing wet distillers grains plus solubles (WDGS) at 35% (DM basis). Micro-Aid is a feed ingredient derived from a Yucca extract which contains saponins, and was included in the treatment diet at 1 g/hd daily in the supplement. There was no difference in performance and carcass characteristics between treatments. In the winter experiment, cattle fed Micro-Aid had a greater amount of OM and DM removed from the pen surface. Micro-Aid in the diet increased the amount of manure N and decreased N lossis in the winter. …

Evaluation Of Condensed Distillers Solubles And Field Peas For Feedlot Cattle, Anna C. Pesta

Department of Animal Science: Dissertations, Theses, and Student Research

Limited previous research has investigated feeding high levels of condensed distillers solubles (CDS) as an energy source for feedlot cattle. As an energy dense and relatively inexpensive by-product feed from ethanol production, CDS may provide another opportunity to replace high priced corn in finishing diets. Two feedlot studies and one metabolism study were conducted to evaluate the effects of feeding CDS in both corn-based diets, and in combination with other by-product feeds on cattle performance and carcass characteristics. Inclusion of up to 36% CDS, providing 9.4% dietary fat improved performance relative to a corn-based control, with the optimum level of …

Animal Performance And Diet Quality While Grazing Corn Residue, Jennifer A. Gigax

Department of Animal Science: Dissertations, Theses, and Student Research

Grazing cattle on corn residue as a winter feed source has become an integral part of many Nebraska producers’ management plans. Utilizing corn residues extends the grazing season and is often more economical than grazing winter range or dry lot situations. Corn residue is high in OM and NDF, moderate in digestibility, and low in CP. Cattle grazing corn residues may need to be supplemented with a protein source to meet requirements.

The development and application of DNA technology to create new corn hybrids has improved yields with fewer inputs, leading to a continued low cost food supply for consumers. …