ROCKY MOUNTAIN BIGHORN SHEEP (OVIS CANADENSIS CANADENSIS) MILK: II. ELECTROPHORETIC ANALYSES OF PROTEINS; CARBOHYDRATE CONTENT OF CASEIN

1967 ◽  
Vol 45 (4) ◽  
pp. 369-375 ◽  
Author(s):  
B. E. Baker ◽  
D. A. Blood ◽  
E. C. H. Chen
Keyword(s):  
Sialic Acid ◽  
Rocky Mountain ◽  
Bighorn Sheep ◽  
Ovis Canadensis ◽  
Carbohydrate Content ◽  
Electrophoretic Patterns ◽  
Sheep Milk ◽  
Starch Gel ◽  
Β Lactoglobulin ◽  
Suffolk Sheep

Samples of casein and whey were prepared from the milk of individual Rocky Mountain bighorn sheep and from Suffolk sheep. The casein from bighorn sheep milk contained more hexose, hexosamine, and sialic acid than did that from the milk of Suffolk sheep. The sheep caseins gave electrophoretic patterns (starch gel, polyacrylamide) that were similar to those obtained with bovine casein. The sheep whey contained an electrophoretic (polyacrylamide) component which had a mobility similar to that of bovine β-lactoglobulin.

ROCKY MOUNTAIN BIGHORN SHEEP (OVIS CANADENSIS CANADENSIS) MILK: I. GROSS COMPOSITION AND FAT CONSTITUTION

1965 ◽  
Vol 43 (5) ◽  
pp. 885-888 ◽  
Author(s):  
E. C. H. Chen ◽  
D. A. Blood ◽  
B. E. Baker
Keyword(s):  
Fatty Acids ◽  
Milk Fat ◽  
Post Partum ◽  
Rocky Mountain ◽  
Bighorn Sheep ◽  
Ovis Canadensis ◽  
Domestic Sheep ◽  
Milk Samples ◽  
Sheep Milk ◽  
Park Area

Milk was obtained from five Rocky Mountain bighorn sheep living in the Jasper Park area of Alberta. The milk was collected at [Formula: see text] and 3 months post partum. The gross composition and milk fat fatty acids of the milk samples and of a sample of domestic sheep milk (Suffolk, 1 month post partum) were determined.

scholarly journals Brucellosis in Captive Rocky Mountain Bighorn Sheep (Ovis canadensis) Caused by Brucella abortus Biovar 4

2004 ◽  
Vol 40 (2) ◽  
pp. 311-315 ◽  
Author(s):  
Terry J. Kreeger ◽  
Walter E. Cook ◽  
William H. Edwards ◽  
Todd Cornish
Keyword(s):  
Brucella Abortus ◽  
Rocky Mountain ◽  
Bighorn Sheep ◽  
Ovis Canadensis

POLAR BEAR MILK: III. GEL-ELECTROPHORETIC STUDIES OF PROTEIN FRACTIONS ISOLATED FROM POLAR BEAR MILK AND HUMAN MILK

1967 ◽  
Vol 45 (6) ◽  
pp. 1205-1210 ◽  
Author(s):  
B. E. Baker ◽  
V. B. Hatcher ◽  
C. R. Harington
Keyword(s):  
Sialic Acid ◽  
Acid Content ◽  
Polar Bear ◽  
Whey Proteins ◽  
Electrophoretic Analysis ◽  
Polyacrylamide Gel ◽  
Sialic Acid Content ◽  
Electrophoretic Patterns ◽  
Centrifuge Tube ◽  
Starch Gel

Polar bear milk was stored in the frozen state for 2 months. It was then thawed and subjected to low-speed centrifugation. The material (D) which deposited at the bottom of the centrifuge tube and also the casein and whey proteins isolated from the supernate were analyzed by polyacrylamide-gel (without urea) electrophoresis. The precipitate (D) and the casein gave closely similar electrophoretic patterns. However, the precipitate (D) contained less than 20% of the carbohydrate (hexose, hexosamine, sialic acid) content of the casein. Polar bear casein and bovine casein gave similar electropherograms when subjected to polyacrylamide-gel (7 M urea) electrophoretic analysis. Human casein gave eight distinct bands, four of which had higher mobilities than did bovine αs-casein. Starch-gel (2-mercaptoethanol added) electrophoretic analysis indicated that polar bear casein and human casein produced 8 and 13 electrophoretic components respectively.

Cardiac frequency: a potential predictor of blood cortisol levels during acute and chronic stress exposure in Rocky Mountain bighorn sheep (Ovis canadensis canadensis)

1987 ◽  
Vol 65 (8) ◽  
pp. 2028-2034 ◽  
Author(s):  
Henry J. Harlow ◽  
E. Tom Thorne ◽  
Elizabeth S. Williams ◽  
E. Lee Belden ◽  
William A. Gern
Keyword(s):  
Chronic Stress ◽  
Remote Monitoring ◽  
Acute Stress ◽  
Rocky Mountain ◽  
Bighorn Sheep ◽  
Ovis Canadensis ◽  
Domestic Sheep ◽  
Cardiac Frequency ◽  
Acute And Chronic Stress ◽  
In Captivity

It was the purpose of this study to investigate methods of assessing responses to stress by free-ranging bighorn sheep (Ovis canadensis canadensis). The adrenal response test on wild-caught bighorn sheep maintained in captivity did not demonstrate either adrenal exhaustion or hypersensitivity during chronic stress. To study physiological responses to acute stress, hand-reared bighorn sheep were habituated to living in stalls and fitted with electrocardiogram leads and jugular cannulas for remote monitoring of cardiac frequency and blood cortisol changes. A radioimmunoassay was validated on bighorn sheep plasma which was a modification of the procedure used for domestic sheep. A linear relationship between heart rate and blood cortisol was obtained for individual animals suggesting that remote monitoring of cardiac frequency can be used as a predictor of adrenal function and, therefore, the potential immunologic condition of an animal during stress.

Rocky Mountain bighorn sheep (Ovis canadensis canadensis) winter habitat selection and seasonal movements in an area of active coal mining

2016 ◽  
Vol 94 (11) ◽  
pp. 733-745 ◽  
Author(s):  
Kim G. Poole ◽  
Rob Serrouya ◽  
Irene E. Teske ◽  
Kevin Podrasky
Keyword(s):  
Habitat Selection ◽  
Rocky Mountain ◽  
Bighorn Sheep ◽  
High Elevation ◽  
Ovis Canadensis ◽  
Open Pit ◽  
Selection Function ◽  
Winter Habitat ◽  
Native Grasslands ◽  
Active Coal

Winter is an important period for most mountain ungulates due to limited availability of preferred forage and costs associated with travel through deep snow. We examined winter habitat selection by Rocky Mountain bighorn sheep (Ovis canadensis canadensis Shaw, 1804) where four large, open-pit coal mines are in operation. Sheep in this area generally winter at high elevation on windswept, south-facing native grasslands. We used GPS collars and Resource Selection Function analysis to examine movements and habitat selection. A majority (79%) of the sheep were migratory and fidelity to winter ranges was high (88%). Sheep showed low use (∼10%–20%) of mine areas between November and April, followed by increased use peaking at 60%–65% in September–October. Wintering sheep were positively associated with high elevations, closeness to escape terrain, and warmer aspects. High-elevation, native grasslands were the highest ranked cover class. Most sheep that used mine areas during winter used reclaimed habitats, primarily reclaimed spoils and pits. Primary winter ranges comprised 4.3% of merged sheep range, emphasizing the limited amount of occupied winter ranges within the landscape. Disturbance to native winter range resulting from development should be minimized or be conducted in a manner that effectively manages and (or) mitigates the impacts.

scholarly journals Paranasal Sinus Masses of Rocky Mountain Bighorn Sheep (Ovis canadensis canadensis)

2010 ◽  
Vol 48 (3) ◽  
pp. 706-712 ◽  
Author(s):  
K. A. Fox ◽  
S. K. Wootton ◽  
S. L. Quackenbush ◽  
L. L. Wolfe ◽  
I. K. LeVan ◽  
...  
Keyword(s):  
Paranasal Sinus ◽  
Rocky Mountain ◽  
Bighorn Sheep ◽  
Ovis Canadensis
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