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.

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 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

Should cats be allowed outdoors? A research survey on animal welfare risks for free-ranging cats in Brazil

2021 ◽  
Vol 30 (3) ◽  
pp. 331-339
Author(s):  
DS Machado ◽  
AFF Bragança ◽  
IC Travnik ◽  
AP Rossi ◽  
AC Sant'Anna
Keyword(s):  
Latin American ◽  
Rural Areas ◽  
Management Practices ◽  
Public Awareness ◽  
Online Questionnaire ◽  
Factors Affecting ◽  
Logistic Regression Models ◽  
Research Survey ◽  
Free Ranging ◽  
Lack Of Knowledge

A need exists for research that contributes to estimating the risk factors associated with the management of outdoor cats (Felis silvestris catus) and addresses the lack of such surveys in Brazil and other Latin American countries. With this in mind we aimed to: i) identify the causal factors affecting the practice of owners allowing their cats to roam freely and; ii) evaluate potential welfare risks associated with the allowance of outdoor access, based on cat owners' reports. An online questionnaire consisting of 25 questions was answered by 8,485 Brazilian cat owners and logistic regression models used to obtain odds ratios. A number of the factors significantly related to owners allowing their cats to have outdoor access were unneutered cats, the manner in which the cat was acquired, residence in rural areas, the number of cats owned, the presence of other pets in the house, younger owner age, owner declaration of not being responsible for the cat, owner perception about the role of the cat in the house, owner knowledge about cats' potential for transmitting diseases, a lack of knowledge about zoonoses, and a lack of knowledge regarding toxoplasmosis. The practice of allowing outdoor access was associated with significantly higher odds of owners reporting several welfare issues, such as frequent flea contamination, sporotrichosis, going missing, poisoning, mistreatment, and accidents. We conclude that the practice of allowing outdoor access, as reported by 37.1% of our respondents, may result in risks to feline welfare. Increasing public awareness through campaigns that highlight the risks associated with outdoor access would improve feline management practices and welfare.

scholarly journals Congenital Ocular Abnormalities in Free-Ranging White-Tailed Deer

2018 ◽  
Vol 55 (4) ◽  
pp. 584-590 ◽  
Author(s):  
Lorelei L. Clarke ◽  
Kevin D. Niedringhaus ◽  
K. Paige Carmichael ◽  
M. Kevin Keel ◽  
Heather Fenton
Keyword(s):  
Anterior Segment ◽  
Corneal Opacity ◽  
The United States ◽  
Nutritional Deficiencies ◽  
Congenital Cataracts ◽  
Ocular Abnormalities ◽  
Anterior Segment Dysgenesis ◽  
Spatiotemporal Clustering ◽  
Disease Study ◽  
Free Ranging

Congenital ocular abnormalities in cervids have been previously reported as individual cases from various regions of the United States and include microphthalmia, anophthalmia, congenital cataracts, dermoids, and colobomata. A common underlying cause for these abnormalities, such as nutritional deficiencies, environmental toxin exposures, or genetic mutations, has not been established. This retrospective study summarized and compared cases of suspected congenital ocular abnormalities in free-ranging white-tailed deer ( Odocoileus virginianus) submitted to the Southeastern Cooperative Wildlife Disease Study (SCWDS) in Athens, Georgia, to the preexisting literature. Of 3645 accessions of white-tailed deer submitted to SCWDS, 15 qualifying case records were found. An additional 15 cases were reported previously in the literature. Conditions described in SCWDS cases included microphthalmia (8/15), congenital cataracts (3/15), anophthalmia (2/15), colobomata (1/15), anterior segment dysgenesis (1/15), ectopic lacrimal gland tissue (1/15), and congenital blindness with corneal opacity (1/15). Most (11/15; 73%) of the SCWDS cases were male fawns with an average age of 4 months at presentation, consistent with previously described cases. Most animals had bilateral abnormalities with few extraocular congenital abnormalities, also consistent with existing reports. Cases were variably tested for various infectious agents at the time of submission; 2 cases were seropositive for bluetongue virus. Spatiotemporal clustering of cases was not evident. This study provided a concise and systematic summary of known existing cases of congenital ocular defects in fawns but did not identify a cause.

scholarly journals Factors affecting fecal glucocorticoid levels in semi-free-ranging female mandrills (Mandrillus sphinx)

2008 ◽  
Vol 70 (11) ◽  
pp. 1023-1032 ◽  
Author(s):  
Joanna M Setchell ◽  
Tessa Smith ◽  
E Jean Wickings ◽  
Leslie A Knapp
Keyword(s):  
Factors Affecting ◽  
Mandrillus Sphinx ◽  
Free Ranging ◽  
Fecal Glucocorticoid

scholarly journals Factors affecting success rate and accuracy of GPS collar positioning for free-ranging Japanese macaques

2005 ◽  
Vol 21 (2) ◽  
pp. 107-119 ◽  
Author(s):  
Yuji TAKENOSHITA ◽  
David SPRAGUE ◽  
Nobusuke IWASAKI
Keyword(s):  
Success Rate ◽  
Japanese Macaques ◽  
Factors Affecting ◽  
Gps Collar ◽  
Free Ranging

scholarly journals Factors affecting velvet antler weights in free-ranging reindeer in Alaska

Rangifer ◽  
1999 ◽  
Vol 19 (2) ◽  
pp. 71 ◽  
Author(s):  
Alexander K. Prichard ◽  
Greg L. Finstad ◽  
Drew H. Shain
Keyword(s):  
Body Weight ◽  
Positive Relationship ◽  
Factors Affecting ◽  
Significant Positive Relationship ◽  
Julian Date ◽  
Velvet Antler ◽  
Lactating Females ◽  
Males And Females ◽  
Seward Peninsula ◽  
Free Ranging

<p>Free-ranging reindeer on the Seward Peninsula in western Alaska are rounded up from late May to early July and antlers are removed. We used data collected from 1987 to 1997 to determine how velvet antler weights of males and females varied with age, year, reproductive status, Julian date, and body weight. Male antler weights increased with age up to age five years, and were lower in castrates than in bulls. There was a significant positive relationship between body weight and antler weight in both sexes. Female antler weights increased with age until at least age nine. Lactating females had lower antler weights than non-lactating females, but this effect is better explained by differences in body weight. Antler weight of individual reindeer at age two years was better predicted by their antler weights as yearlings than their body weight as yearlings.</p>

Factors affecting mutual grooming and play behaviour in a group of domestic horses (Equus caballus)

2006 ◽  
Vol 35 ◽  
pp. 193-197
Author(s):  
M. Hannan ◽  
I. Draganova ◽  
L. Dumbell
Keyword(s):  
Influencing Factors ◽  
Social Bonds ◽  
Equus Caballus ◽  
Feral Horses ◽  
Complex Behaviour ◽  
Factors Affecting ◽  
Play Behaviour ◽  
Domestic Horses ◽  
Free Ranging

Horses are a gregarious species with strong social bonds between individuals and when under free-ranging conditions, form family bands or herds (Tyler, 1979; Wells and Goldschmidt-Rothschild, 1979). Each herd contains small bands of roughly 3 adult horses (1 stallion, 2-3 mares) plus their most recent offspring (Linklater et al., 1999). There are also bachelor groups composed of males that are either too young for their own harems, or can no longer defend the harems they once had (Waring, 1983). As horses live in groups they have evolved a complex behaviour repertoire in order to communicate. Mutual grooming and play are two such behaviours that have been widely studied in both domestic and feral horses, however the results from studies on their influencing factors have been contradictory. Mutual grooming has the obvious function of coat care and parasite removal; moreover, it has also been implicated in forming and maintaining bonds between horses in a herd (Waring, 1983).

A severe outbreak of contagious ecthyma (orf) in a free-ranging musk ox (Ovibos moschatus) population in Norway

2008 ◽  
Vol 127 (1-2) ◽  
pp. 10-20 ◽  
Author(s):  
Turid Vikøren ◽  
Atle Lillehaug ◽  
Johan Åkerstedt ◽  
Tord Bretten ◽  
Magne Haugum ◽  
...  
Keyword(s):  
Contagious Ecthyma ◽  
Ovibos Moschatus ◽  
Free Ranging ◽  
Musk Ox

Our experience in the surgical treatment of congenital cataract

Reflection ◽  
2020 ◽  
Vol 10 (1) ◽  
pp. 25-27
Author(s):  
I. V. Kuznetsov ◽  
◽  
N. V. Pasikova ◽  
Keyword(s):  
Surgical Treatment ◽  
General Anesthesia ◽  
Congenital Cataract ◽  
Functional Results ◽  
Clinical Analysis ◽  
Early Postoperative Period ◽  
Congenital Cataracts ◽  
Initial Appointment ◽  
Examination Methods ◽  
Preoperative Examination

Aim. To present our experience and evaluate the results of surgical treatment of congenital cataracts. Methods. A clinical analysis of the results of congenital cataract aspiration in 16 children (22 eyes) aged 2 months to 5 years is performed. Bilateral cataract was determined in 6 children, unilateral – in 10. Preoperative examination of children aged 3–5 years was carried out in a standard way. Children younger than 3 years of age at the initial appointment underwent non-contact examination methods, the remaining studies were performed under general anesthesia in the operating room immediately before surgery. Congenital cataract phacoaspiration was performed under general anesthesia using the Stellaris microsurgical system (Bausch and Lomb, USA) through a 1.2-mm paracentesis in the lens irrigation-aspiration regime. Hydrophobic IOL models were implanted. The posterior lens capsule was preserved in all cases. Mandatory was the appointment of cycloplegics in drops in the early postoperative period. Results. An increase in visual acuity (from 0.03 to 0.7) occurred in all cases. However, presence of obscuration amblyopia of varying degrees required regular courses of pleoptic treatment. Conclusions. The effectiveness of congenital cataracts phacoaspiration is ensured by the fulfillment of federal clinical recommendations, however, sutureless surgery allows achieving high functional results in the treatment of this pathology. Key words: congenital cataract; phacoaspiration; intraocular lens.

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