Late Summer Planted Oat-Brassica Forage Quality Changes during Winter Grazing

Authors

Mary E. Lenz, University of Nebraska - Lincoln
Jordan L. Cox, University of Nebraska-LincolnFollow
Kristin E. Hales Hales, University of Nebraska-LincolnFollow
Hannah C. Wilson, University of Nebraska-LincolnFollow
Mary E. Drewnoski, University of Nebraska-LincolnFollow

Date of this Version

2018

Citation

2018 Nebraska Beef Cattle Report. University of Nebraska Extension MP105. Lincoln, NE.

Comments

© 2017 The Board Regents of the University of Nebraska.

Abstract

Oat, radish, and turnip samples were taken on pivots being grazed from November through January in Clay Center, Nebraska. The objective was to determine how the quality changed throughout the winter. The forage was observed to be high-quality (highly digestibility with moderate CP content). Digestibility did decline over this period but minimal changes in CP content were observed. From early November to early January, the digestibility of oats appeared to decline more (10% unit decline) than turnip and radish leaves (5% unit decrease). However, digestibility (67% IVOMD) and CP content (15%) of oats in early January were still as high as a good quality grass hay. Brassica (radish and turnip) leaves were more similar to a concentrate (81–83% IVOMD and 23–26% CP) even in January. Thus, even though the forage changed color from green to brown after hard freezes, the forage still had good feed value in January.