Comparison of wheat or corn dried distillers grains with solubles on performance, carcass characteristics, rumen fermentation parameters and diet digestibility of feedlot cattle
| dc.contributor.advisor | McKinnon, John | en_US |
| dc.contributor.committeeMember | Yu, Peiqiang | en_US |
| dc.contributor.committeeMember | Hendrick, Steve | en_US |
| dc.contributor.committeeMember | McAllister, Tim | en_US |
| dc.contributor.committeeMember | Mutsvangwa, Tim | en_US |
| dc.creator | Walter, Lee-Anne Judy | en_US |
| dc.date.accessioned | 2010-01-29T17:27:49Z | en_US |
| dc.date.accessioned | 2013-01-04T04:25:01Z | |
| dc.date.available | 2011-02-02T08:00:00Z | en_US |
| dc.date.available | 2013-01-04T04:25:01Z | |
| dc.date.created | 2010-01 | en_US |
| dc.date.issued | 2010-01 | en_US |
| dc.date.submitted | January 2010 | en_US |
| dc.description.abstract | Two trials were conducted, one using crossbred steers (Trial 1; N=275; 376±24 kg) and a second using Hereford heifers (Trial 2; N=5; 420±6 kg) to evaluate the performance, carcass quality, rumen fermentation and nutrient digestibility of cattle fed wheat or corn dried distillers grains with solubles (DDGS). The control ration averaged 87.7% rolled barley grain, 5.6% supplement and 6.8% barley silage (DM basis) over both trials. Dietary treatments included replacement of barley grain at 20 or 40% of the diet (DM basis) with wheat or corn DDGS. For Trial 1, steers were slaughtered at a constant finish weight of 645 kg. Data was analyzed as a completely randomized design using pen as the experimental unit. Feeding increasing levels of wheat DDGS quadratically increased dry matter intake (DMI) (P0.05). Feeding both wheat and corn DDGS increased (P=0.01) the excretion of nitrogen and phosphorus. Replacement of barley grain with up to 40% corn or wheat DDGS improved gain:feed and reduced days on feed, respectively with no detrimental effect on carcass quality grade or sub-primal boneless boxed beef yield. The results of this project also indicate that the inclusion of corn and wheat DDGS (up to 40%) in feedlot rations does not mitigate ruminal acidosis, however the inclusion of both byproducts strongly impacts nutrient (crude fat, ADF, NDF, ADIN and NDIN) digestibility. | en_US |
| dc.identifier.uri | http://hdl.handle.net/10388/etd-01292010-172749 | en_US |
| dc.language.iso | en_US | en_US |
| dc.subject | wheat | en_US |
| dc.subject | cattle | en_US |
| dc.subject | DDGS | en_US |
| dc.subject | corn | en_US |
| dc.subject | feedlot performance | en_US |
| dc.subject | carcass quality | en_US |
| dc.title | Comparison of wheat or corn dried distillers grains with solubles on performance, carcass characteristics, rumen fermentation parameters and diet digestibility of feedlot cattle | en_US |
| dc.type.genre | Thesis | en_US |
| dc.type.material | text | en_US |
| thesis.degree.department | Animal and Poultry Science | en_US |
| thesis.degree.discipline | Animal and Poultry Science | en_US |
| thesis.degree.grantor | University of Saskatchewan | en_US |
| thesis.degree.level | Masters | en_US |
| thesis.degree.name | Master of Science (M.Sc.) | en_US |