| dc.contributor.author |
Foutz, TL |
en |
| dc.contributor.author |
Rowland, GN |
en |
| dc.contributor.author |
Evans, M |
en |
| dc.date.accessioned |
2014-06-06T06:43:14Z |
|
| dc.date.available |
2014-06-06T06:43:14Z |
|
| dc.date.issued |
1997 |
en |
| dc.identifier.issn |
00012351 |
en |
| dc.identifier.uri |
http://62.217.125.90/xmlui/handle/123456789/1113 |
|
| dc.relation.uri |
http://www.scopus.com/inward/record.url?eid=2-s2.0-0031280371&partnerID=40&md5=7cc6fdbb387f3124b254420d672a3fbe |
en |
| dc.subject |
Biomechanics |
en |
| dc.subject |
Bone |
en |
| dc.subject |
Osteopenia |
en |
| dc.subject |
Pullet |
en |
| dc.subject.other |
Biomechanics |
en |
| dc.subject.other |
Medical problems |
en |
| dc.subject.other |
Nondestructive examination |
en |
| dc.subject.other |
Orthopedics |
en |
| dc.subject.other |
Physiological models |
en |
| dc.subject.other |
Bone loss |
en |
| dc.subject.other |
Bone mass |
en |
| dc.subject.other |
Osteopenia |
en |
| dc.subject.other |
Pullet |
en |
| dc.subject.other |
Bone |
en |
| dc.title |
An avian modeling approach for analyzing bone loss due to disuse |
en |
| heal.type |
journalArticle |
en |
| heal.publicationDate |
1997 |
en |
| heal.abstract |
Osteopenia has been a major skeletal problem of leghorns in production. Mechanical usage has been considered a major factor in controlling ultimate bone mass. A disuse model was characterized over a 35 day period in pullets to determine the sequential temporal change in lamellar cortical bone of the wing. Ulna cortical bone area was decreased at all four time intervals in the immobilized wings. At 21 days post-immobilization, the cortical bone area was decreased most significantly. Osteoblastic activity was most consistently altered by immobilization on the posterior quadrant of the ulna. Cortical endosteal eroded surface was significantly increased on day 14 in experiment 1 and day 28 in experiment 2. Nondestructive material testing indicated that a 30% to 40% reduction in stiffness for the immobilized wing.Osteopenia has been a major skeletal problem of leghorns in production. Mechanical usage has been considered a major factor in controlling ultimate bone mass. A disuse model was characterized over a 35 day period in pullets to determine the sequential temporal change in lamellar cortical bone of the wing. Ulna cortical bone area was decreased at all four time intervals in the immobilized wings. At 21 days post-immobilization, the cortical bone area was decreased most significantly. Osteoblastic activity was most consistently altered by immobilization on the posterior quadrant of the ulna. Cortical endosteal eroded surface was significantly increased on day 14 in experiment 1 and day 28 in experiment 2. Nondestructive material testing indicated that a 30% to 40% reduction in stiffness for the immobilized wing. |
en |
| heal.publisher |
ASAE, St. Joseph, MI, United States |
en |
| heal.journalName |
Transactions of the American Society of Agricultural Engineers |
en |
| dc.identifier.issue |
6 |
en |
| dc.identifier.volume |
40 |
en |
| dc.identifier.spage |
1719 |
en |
| dc.identifier.epage |
1725 |
en |