Some helminth parasites from the small intestine of free-ranging muskoxen Ovibos moschatus (Zimmermann) of Devon and Ellesmere Islands, Northwest Territories

1980 ◽  
Vol 58 (2) ◽  
pp. 304-305 ◽  
Author(s):  
W. A. Webster ◽  
J. Rowell
Keyword(s):  
Small Intestine ◽  
Northwest Territories ◽  
Ellesmere Island ◽  
Helminth Parasites ◽  
Taenia Hydatigena ◽  
Ovibos Moschatus ◽  
Devon Island ◽  
Intestinal Contents ◽  
Marshallagia Marshalli ◽  
Free Ranging

Intestinal contents from two muskoxen, Ovibos moschatus (Zimmermann), collected in March 1978 on Devon Island, N.W.T., both contained Marshallagia marshalli (Ransom 1906) and Nematodirus helvetianus May 1920. Intestinal contents from five muskoxen collected in August 1978 on Ellesmere Island, N.W. T., contained Moniezia expansa (Rudolphi 1810) (one of the five), Ostertagia trifurcata Ransom 1907 (one of five), M. marshalli (one of five) and N. helvetianus (two of five). Cysticerci of Taenia hydatigena Pallas 1766 were found in two of the five animals from Ellesmere Island.

scholarly journals Congenital cataract and spherophakia leading to starvation in a free-ranging muskox neonate from the Northwest Territories, Canada

2021 ◽  
pp. 104063872110574
Author(s):  
Julia E. Case ◽  
Rae-Leigh A. Pederzolli ◽  
Edward G. Clark ◽  
Heather Fenton ◽  
Susan J. Kutz ◽  
...  
Keyword(s):  
Northwest Territories ◽  
Maternal Death ◽  
Congenital Cataract ◽  
Congenital Cataracts ◽  
Factors Affecting ◽  
Ovibos Moschatus ◽  
Ocular Lesions ◽  
Free Ranging

A muskox neonate ( Ovibos moschatus) that died of starvation was diagnosed with congenital lenticular anomalies that included spherophakia and hypermature cataract associated with probable lens-induced lymphocytic uveitis and neutrophilic keratitis. Impaired sight as a result of cataract and associated inflammation likely contributed to abandonment and starvation, although maternal death cannot be excluded definitively. Ocular lesions, such as congenital cataracts and spherophakia in neonates, may be important factors affecting survival in free-ranging animals.

ON SOME HELMINTH PARASITES COLLECTED FROM THE MUSK OX (OVIBOS MOSCHATUS) IN THE THELON GAME SANCTUARY, NORTHWEST TERRITORIES

1958 ◽  
Vol 36 (4) ◽  
pp. 529-532 ◽  
Author(s):  
Harold C. Gibbs ◽  
John S. Tener
Keyword(s):  
Northwest Territories ◽  
Helminth Parasites ◽  
Ovibos Moschatus ◽  
Musk Ox

Three species of nematodes and three species of cestodes are reported from Ovibos moschatus taken in the Thelon Game Sanctuary, N.W.T.

scholarly journals Trends in high arctic muskox (Ovibos moschatus) harvest, 1990-2015

Rangifer ◽  
2017 ◽  
Vol 37 (1) ◽  
pp. 47-58
Author(s):  
Morgan Anderson
Keyword(s):  
High Arctic ◽  
Ellesmere Island ◽  
Management Unit ◽  
Baffin Island ◽  
Ovibos Moschatus ◽  
Devon Island ◽  
Country Food ◽  
Domestic Use ◽  
Wildlife Harvest ◽  
Harvest Pressure

Harvest reporting has been in place for High Arctic muskoxen in Nunavut, Canada, since 1990-91. The communities of Resolute, Grise Fiord, and Arctic Bay harvest muskoxen in the region. Overall, muskox harvest has declined in Resolute and Grise Fiord since the 1990s. The recovery of Peary caribou populations on the Bathurst Island Complex, which provides an alternate preferred source of country food, may be a factor behind Resolute’s decreased muskox harvest. The proportion of harvest for domestic use has also declined relative to sport hunts, which have remained relatively constant since the 1990s. We compared muskox harvest from tag records and reported harvest, i.e., the voluntary surveys to the Nunavut Wildlife Harvest Study for muskoxen. It is clear that voluntarily reported harvest underestimates actual harvest, but not consistently enough to predict the actual harvest. Muskox populations are at historic high levels on Bathurst Island, southern Ellesmere Island, and Devon Island and could support more harvest than is currently taken. Changes to Total Allowable Harvests and management unit boundaries in 2015, combined with a decline in the availability of Baffin Island caribou as country food, may result in increased harvest pressure on muskoxen in the High Arctic.

scholarly journals YERSINIOSIS IN FREE-RANGING MUSKOXEN ON BANKS ISLAND, NORTHWEST TERRITORIES, CANADA

1991 ◽  
Vol 27 (4) ◽  
pp. 527-533 ◽  
Author(s):  
John E. Blake ◽  
Bruce D. McLean ◽  
Anne Gunn
Keyword(s):  
Northwest Territories ◽  
Banks Island ◽  
Free Ranging

THE EFFECT OF INGESTED CHLORTETRACYCLINE ON SOME HYDROLASES AND ORGANS ASSOCIATED WITH THE DIGESTIVE PROCESS IN GROWING PIGS: II. PROTEASE, AMYLASE, AND GELLULASE ACTIVITY OF THE CONTENTS OF THE SMALL INTESTINE AND OF THE CECUM; WEIGHTS OF SMALL INTESTINE AND MUCOSA

1957 ◽  
Vol 35 (3) ◽  
pp. 195-202 ◽  
Author(s):  
M. A. A. Vonk ◽  
L. W. McElroy ◽  
R. T. Berg
Keyword(s):  
Small Intestine ◽  
Dry Matter ◽  
Cellulase Activity ◽  
Dry Weight ◽  
Growing Pigs ◽  
Weanling Pigs ◽  
Intestinal Contents ◽  
Wet Weight ◽  
The Mean ◽  
Ad Libitum

Four treatments, involving differences in method of feeding and interval between last feed and slaughter, were employed in a study of the effect of dietary chlortetracycline on protease, amylase, and cellulase activity in the intestinal and cecal contents of 16 pairs of weanling pigs. Most consistent results were obtained with six pairs which were limited pair-fed except for the final feeding during which feed was available ad libitum for a 4-hour period ending 18 hours before slaughter. The mean total activities of all three hydrolases in the contents of the small intestines and of the ceca of the antibiotic-fed animals of these six pairs were significantly greater than in those of the control animals. Expressed as activity per gram dry matter of intestinal contents, significantly higher values for protease and amylase, but not for cellulase, were observed in the pigs that had received chlortetracycline. When the combined results obtained from all 16 pairs of the experimental animals were analyzed, the results showed that on a basis of activity per gram dry matter of intestinal contents, ingested chlortetracycline was associated with significant increases in amylase and cellulase but not in protease activity. Protease, amylase, and cellulase activities per gram dry matter of cecal contents were higher for pigs fed the antibiotic than for their controls. The mean wet weight of the empty small intestine and the mean dry weight of the mucosa scraped from the anterior 3-meter section of the small intestine were lower for the chlortetracycline-fed animals, but the differences were not statistically significant.

scholarly journals Accurate mapping of Arctic glaciers over 50 years ago

1997 ◽  
Vol 24 ◽  
pp. 6-10 ◽  
Author(s):  
John Wright
Keyword(s):  
Northwest Territories ◽  
Ellesmere Island ◽  
Successful Attempt

This paper will describe what it was like to map Arctic glaciers starling 62 years ago in Iceland; then in Nordaustland, Svalbard, in 1935–36; and finally in northwest Greenland and Ellesmere Island, Northwest Territories, Canada, in 1937–38. The glacier in Iceland was resurveyed by a party including me in 1992; and I made a less successful attempt to resurvey the Greenland glacier in 1993.

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