| dc.contributor.author | Jeske, Theresa Mae | |
| dc.description.abstract | The objective of this study was to investigate the effects of Bovine Respiratory Disease
(BRD) and liver condemnation on beef carcass traits. Health treatment records for 2534
animals from a North Dakota feedlot were obtained and evaluated as evidence of BRD.
Lung Lesions (n = 291) and lung condemnations (n = 1710) at slaughter where also
evaluated as an indicator ofBRD. Liver condemnation (n = 2298) at slaughter was also
considered in the analysis. Traits measured were hot carcass weight, USDA Quality Grade,
USDA Yield Grade, ribeye area, marbling and lih rib fat thickness. All cattle were
evaluated by experienced feedlot personnel and treated according to a health protocol
utilized by the feedlot. The incidence rate of BRD was observed as affecting 3 .40% of the
feedlot population. USDA Quality Grade (P = 0.001) and hot carcass weight (P = 0.07)
were decreased for cattle treated for BRD. Cattle with lung condemnation at slaughter had
a tendency for lower hot carcass weights. Conversely, marbling (P = 0.04) and lih rib fat
thickness (P = 0.04) was increased for cattle with lung condemnations at slaughter. Ribeye
area was decreased (P = 0.004) for cattle with liver condemnations at slaughter and cattle
with liver condemnations had increased USDA Quality Grades (P = 0.03). The presence of
any one particular measurement did not significantly affect all carcass traits measured;
however, the relationships between health parameters and carcass traits may be considered
in future research in specific carcass traits. | en_US |
| dc.publisher | North Dakota State University | en_US |
| dc.rights | NDSU policy 190.6.2 | en_US |
| dc.title | Evaluation of Feedlot Cattle Health Relative to Carcass Quality | en_US |
| dc.type | Thesis | en_US |
| dc.date.accessioned | 2024-03-01T18:03:41Z | |
| dc.date.available | 2024-03-01T18:03:41Z | |
| dc.date.issued | 2010 | |
| dc.identifier.uri | https://hdl.handle.net/10365/33695 | |
| dc.subject | bovine respiratory disease | en_US |
| dc.subject | cattle | en_US |
| dc.subject | carcass | en_US |
| dc.subject.lcsh | Beef cattle -- Health. | en_US |
| dc.subject.lcsh | Beef cattle -- Carcasses. | en_US |
| dc.subject.lcsh | Feedlots -- Health aspects. | en_US |
| dc.rights.uri | https://www.ndsu.edu/fileadmin/policy/190.pdf | en_US |
| ndsu.degree | Master of Science (MS) | en_US |
| ndsu.college | Agriculture, Food Systems and Natural Resources | en_US |
| ndsu.department | Animal Sciences | en_US |
| ndsu.program | Animal Sciences | en_US |
| ndsu.advisor | Carlin, Kasey Maddock | |
