Date of Award
2021
Publisher
North Dakota State University
Document Type
Thesis
Degree Awarded
Master of Science (MS)
Program
Animal Sciences
Department
Animal Sciences
College
Agriculture, Food Systems and Natural Resources
Faculty Advisor
Neville, Bryan
Description
Two studies were conducted to evaluate the inclusion of additional roughage in wheat-based diets containing modified distillers’ grains with solubles on feedlot performance (Study 1) and digestibility, ruminal pH, and ruminal fermentation characteristics (Study 2). Study 1 used 72 steers (391.6 ± 46.3 kg) and study 2 used 4 ruminally and duodenally cannulated steers (393.4 ± 33.0 kg). Feedlot performance and carcass characteristics, excluding marbling, were not affected by increasing roughage (P ≥ 0.20). Ruminal pH increased linearly (P < 0.01) as rate of roughage inclusion increased. Concentrations of acetate and butyrate increased, and propionate decreased in a linear fashion (P < 0.01), increasing acetate and butyrate to propionate ratio (P < 0.01) with increasing dietary roughage. Our data indicate that increasing roughage inclusion in wheat-based diets including modified distillers’ grains with solubles increased ruminal pH and shifted ruminal fermentation patterns without affecting feedlot performance.
Recommended Citation
Pickinpaugh, Wayde Janelle, "Impacts of Added Roughage on Feedlot Performance, Digestibility, Ruminal Fermentation, and Ruminal pH of Steers Fed Wheat-Based Feedlot Diets" (2021). Animal Sciences. 15.
https://digitalcommons.ndsu.edu/animal-sci/15
Rights
NDSU policy 190.6.2
Rights Link
https://www.ndsu.edu/fileadmin/policy/190.pdf
Handle Identifier
https://hdl.handle.net/10365/32628