RELATIONSHIPS BETWEEN BLOOD-SERUM VARIABLES AND DEPTH OF RUMP FAT IN ALASKAN MOOSE
We studied the relationship between maximum depth of rump fat determined from ultrasound measurements an 22 blood values for Alaskan moose (Alces alces gigas) by sampling 38 pregnant, adult females. Moose were immobilized, and blood was drawn simultaneously with the determination of depth of fat rum...
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1998
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ftjalces:oai:ojs.pkp.sfu.ca:article/731 2023-05-15T13:13:34+02:00 RELATIONSHIPS BETWEEN BLOOD-SERUM VARIABLES AND DEPTH OF RUMP FAT IN ALASKAN MOOSE Keech, Mark A. Stephenson, Thomas R. Bowyer, R. Terry Van Ballenberghe, Victor Ver Hoef, Jay M. 1998-01-01 application/pdf http://alcesjournal.org/index.php/alces/article/view/731 eng eng Lakehead University http://alcesjournal.org/index.php/alces/article/view/731/813 http://alcesjournal.org/index.php/alces/article/view/731 Alces: A Journal Devoted to the Biology and Management of Moose; Vol. 34 No. 1 (1998): Alces Vol. 34 No. 1 (1998); 173-179 2293-6629 0835-5851 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article 1998 ftjalces 2022-02-12T19:35:52Z We studied the relationship between maximum depth of rump fat determined from ultrasound measurements an 22 blood values for Alaskan moose (Alces alces gigas) by sampling 38 pregnant, adult females. Moose were immobilized, and blood was drawn simultaneously with the determination of depth of fat rump during 1-4 March 1996. Multiple-regression models were used to detect relationships between blood-serum variables and depth of fat. Four of 22 blood-serum variables were removed to control for multicollinearity. Remaining variables were regressed against induction time (X̄ = 6.1 min, SD = 4.4 min). Glucose, sodium, and blood urea nitrogen were correlated with induction time (R2a = 0.27, P = 0.010) and likely represented a response to handling; these blood values also were removed from the final regression model. Mallow’s Cp statistic indicated the most appropriate regression model included only 2 variables. Creatinine (X̄ = 2.08 mg/dl, SD = 0.26 mg/dl) and aspartate aminotransferase (AST) (X̄ = 79.10 U/l, SD = 13.61 U/l) met all necessary assumptions and explained a portion of the variability observed in fat depth. (X̄ = 1.5 cm, SD = 1.0 cm). Thus, our final model was: maximum depth of rump fat = 0.28 + 1.68(creatinine) - 0.03(AST). This model was significant (P = 0.0002) and accounted for 33.7% (R2) of variability observed in fat depth. Partial regression coefficients for creatinine and AST were 0.222 (P = 0.0025) and 0.0150 (P = 0.006), respectively, and indicated that creatinine was slightly more influential than AST in the model. These blood variables may provide insights into the predicted condition of moose and the response of moose to environmental conditions. A model using blood variables thought to be indicators of physical condition (protein, phosphorus, and calcium) did not explain significant variation in maximum depth of rump fat. Article in Journal/Newspaper Alces alces Alces (A Journal Devoted to the Biology and Management of Moose) |
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Open Polar |
collection |
Alces (A Journal Devoted to the Biology and Management of Moose) |
op_collection_id |
ftjalces |
language |
English |
description |
We studied the relationship between maximum depth of rump fat determined from ultrasound measurements an 22 blood values for Alaskan moose (Alces alces gigas) by sampling 38 pregnant, adult females. Moose were immobilized, and blood was drawn simultaneously with the determination of depth of fat rump during 1-4 March 1996. Multiple-regression models were used to detect relationships between blood-serum variables and depth of fat. Four of 22 blood-serum variables were removed to control for multicollinearity. Remaining variables were regressed against induction time (X̄ = 6.1 min, SD = 4.4 min). Glucose, sodium, and blood urea nitrogen were correlated with induction time (R2a = 0.27, P = 0.010) and likely represented a response to handling; these blood values also were removed from the final regression model. Mallow’s Cp statistic indicated the most appropriate regression model included only 2 variables. Creatinine (X̄ = 2.08 mg/dl, SD = 0.26 mg/dl) and aspartate aminotransferase (AST) (X̄ = 79.10 U/l, SD = 13.61 U/l) met all necessary assumptions and explained a portion of the variability observed in fat depth. (X̄ = 1.5 cm, SD = 1.0 cm). Thus, our final model was: maximum depth of rump fat = 0.28 + 1.68(creatinine) - 0.03(AST). This model was significant (P = 0.0002) and accounted for 33.7% (R2) of variability observed in fat depth. Partial regression coefficients for creatinine and AST were 0.222 (P = 0.0025) and 0.0150 (P = 0.006), respectively, and indicated that creatinine was slightly more influential than AST in the model. These blood variables may provide insights into the predicted condition of moose and the response of moose to environmental conditions. A model using blood variables thought to be indicators of physical condition (protein, phosphorus, and calcium) did not explain significant variation in maximum depth of rump fat. |
format |
Article in Journal/Newspaper |
author |
Keech, Mark A. Stephenson, Thomas R. Bowyer, R. Terry Van Ballenberghe, Victor Ver Hoef, Jay M. |
spellingShingle |
Keech, Mark A. Stephenson, Thomas R. Bowyer, R. Terry Van Ballenberghe, Victor Ver Hoef, Jay M. RELATIONSHIPS BETWEEN BLOOD-SERUM VARIABLES AND DEPTH OF RUMP FAT IN ALASKAN MOOSE |
author_facet |
Keech, Mark A. Stephenson, Thomas R. Bowyer, R. Terry Van Ballenberghe, Victor Ver Hoef, Jay M. |
author_sort |
Keech, Mark A. |
title |
RELATIONSHIPS BETWEEN BLOOD-SERUM VARIABLES AND DEPTH OF RUMP FAT IN ALASKAN MOOSE |
title_short |
RELATIONSHIPS BETWEEN BLOOD-SERUM VARIABLES AND DEPTH OF RUMP FAT IN ALASKAN MOOSE |
title_full |
RELATIONSHIPS BETWEEN BLOOD-SERUM VARIABLES AND DEPTH OF RUMP FAT IN ALASKAN MOOSE |
title_fullStr |
RELATIONSHIPS BETWEEN BLOOD-SERUM VARIABLES AND DEPTH OF RUMP FAT IN ALASKAN MOOSE |
title_full_unstemmed |
RELATIONSHIPS BETWEEN BLOOD-SERUM VARIABLES AND DEPTH OF RUMP FAT IN ALASKAN MOOSE |
title_sort |
relationships between blood-serum variables and depth of rump fat in alaskan moose |
publisher |
Lakehead University |
publishDate |
1998 |
url |
http://alcesjournal.org/index.php/alces/article/view/731 |
genre |
Alces alces |
genre_facet |
Alces alces |
op_source |
Alces: A Journal Devoted to the Biology and Management of Moose; Vol. 34 No. 1 (1998): Alces Vol. 34 No. 1 (1998); 173-179 2293-6629 0835-5851 |
op_relation |
http://alcesjournal.org/index.php/alces/article/view/731/813 http://alcesjournal.org/index.php/alces/article/view/731 |
_version_ |
1766259153118953472 |