Hematologic and Serum Chemistry Values of Captive Canadian Lynx

Weaver, John L.; Johnson, Mark R.

doi:10.7589/0090-3558-31.2.212

Cited by 19 publications

(19 citation statements)

References 7 publications

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“…Higher BUN values were not seen in the oldest cats and cannot be attributed to renal dysfunction in older cats, as has been reported in Canadian lynx (Weaver and Johnson, 1995). BUN values also are influenced by diet.…”

Section: Discussionsupporting

confidence: 49%

“…The increase in neutrophil numbers is specially pronounced in the cat because the mean marginal pool in clinically normal cats is about three times greater than the circulating pool (Jain, 1993). In other wild felids, a similar leukocytosis and neutrophilia have been recorded and attributed to capture stress (Fuller et al, 1985;Kocan et al, 1985;Weaver and Johnson, 1995). Leukocyte numbers, however, usually demonstrate the greatest variations when comparing different studies within the same species (Heidt et al, 1988).…”

Section: Discussionmentioning

confidence: 82%

“…High activities of muscle enzymes have been described in other species of wild felids due to strenuous exercise, struggling before handling and muscle damage from trapping, darting and anesthetic injection. Values for AST and ALT from wild caught Iberian lynx (Lynx pardina) (Beltran et al, 1991) and bobcats (Lynx rufus) (Fuller et al, 1995) were higher than those recorded for captive Canadian lynx (Lynx canadensis) (Weaver and Johnson, 1995). Activities of AST, CK and LDH were slightly increased in wild mountain lions (Felis concolor) compared to captive ones (Currier and Russell, 1982).…”

Section: Discussionmentioning

confidence: 95%

“…The higher range of eosinophils in the wildcats of our study, compared with domestic cats and other wild felids (Fuller et al, 1985;Jain, 1993;Weaver and Johnson, 1995;Dunbar et al, 1997), could be related to parasitism and physiological stress (Jain, 1993). It is unlikely that endoparasitism is the cause because animals were checked and treated for endoparasites periodically.…”

Section: Discussionmentioning

confidence: 99%

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Hematologic and Serum Chemistry Values of the Captive European Wildcat

Marco

Martínez

Pastor

et al. 2000

Journal of Wildlife Diseases

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Hematologic and serum chemistry values were determined for 20 adult captive European wildcats (Felis silvestris) in Lleida (Catalonia, Spain). Seven wildcats (4 females and 3 males) were captured in the wild and 13 (4 females and 9 males) were born and raised in captivity. Samples were collected between September and December from 1993 to 1998. Blood was obtained by jugular venipuncture after administration of either ketamine and xylazine or ketamine and medetomidine. Females had significantly higher mean eosinophil counts, albumin concentration, (and A/G ratio) and lower mature neutrophil counts, although these differences were not clinically relevant. Results for many of the blood parameters fall within the reference range for domestic cats. Mean values for alanine aminotransferase, aspartate aminotransferase, creatine phosphokinase, and lactate dehydrogenase activities as well as blood urea nitrogen, glucose, and sodium concentrations were higher than the upper limit of the reference range for domestic cats.

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Section: Discussionsupporting

confidence: 49%

Section: Discussionmentioning

confidence: 82%

Section: Discussionmentioning

confidence: 95%

Section: Discussionmentioning

confidence: 99%

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Hematologic and Serum Chemistry Values of the Captive European Wildcat

Marco

Martínez

Pastor

et al. 2000

Journal of Wildlife Diseases

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“…Captive Canada lynx had blood chemistry values similar to domestic felids and other wild felid species, but neutrophil counts were higher and lymphocyte counts were lower in captive lynx that were wild-caught as compared to lynx that were born in captivity (Weaver and Johnson, 1995). Elevated blood urea nitrogen (BUN) and creatinine levels were associated with renal dysfunction in two older, wild-caught lynx kept in captivity (Weaver and Johnson, 1995), while elevated BUN in free-ranging bobcats (L. rufus) was related to diet (Fuller et al, 1985). Blood chemistry values of the closely related Iberian lynx (Lynx pardina) are also similar to other felids, with differences from standard reference values associated with capture method and sex (Beltran et al, 1991;Garcia et al, 2009).…”

Section: Introductionmentioning

confidence: 98%

Hematology, Serum Chemistry, and Body Mass of Free-Ranging and Captive Canada Lynx in Minnesota

Moen

Rasmussen

Burdett

et al. 2010

Journal of Wildlife Diseases

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ABSTRACT:Baseline blood chemistry data could be particularly valuable if reference values from free-ranging populations of rare or endangered species are not available. The Canada lynx (Lynx canadensis) is listed as threatened under the Endangered Species Act in the conterminous United States, even though the species is managed as a furbearer in Alaska and in most provinces of Canada. Body mass, blood chemistry, and hematologic data for free-ranging lynx were collected from 2003 to 2007 and for captive lynx from 1984 to 2007. Up to 2 yr of age, captive lynx were consistently heavier than free-ranging lynx. Body mass of adult free-ranging lynx was similar to body mass of captive adult lynx. Some differences in blood chemistry between free-ranging and captive lynx were statistically significant, but most measured values were within reference ranges for domestic cats. Free-ranging lynx had higher concentrations of aspartate aminotransferase, alanine aminotransferase, and blood urea nitrogen than did captive lynx, and these were outside the reference value ranges for domestic cats. Alkaline phosphatase and phosphorus were higher in juveniles (,12 mo when captured) as compared to adults. Free-ranging lynx maintained body mass between serial captures. Hematologic values, blood chemistry values, and body mass of freeranging Canada lynx provide support for the hypothesis that Canada lynx in Minnesota, at the southern edge of their range, are in normal physical condition.

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The method matters: The effect of handling time on cortisol level and blood parameters in wild cats

et al. 2018

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Blood analysis has recently become a popular tool to assess the welfare of the wild cats. However, the estimates of blood parameters may depend on the sampling method. We have tested (1) if the sampling procedure influences blood parameters and (2) what parameters are the most efficient in assessing the physiological status in wild cat species. We assessed the effect of handling time on red blood cells (RBC) and white blood cells (WBC) counts, the ratio of neutrophils to lymphocytes (N/L ratio), and serum cortisol level within 1 hr after the capture of the animal in six far-east wild cats (Prionailurus bengalensis euptilura). Also, we analyzed literature data in 17 cat species to assess the effect of place of study, type of immobilization, and handling time on WBC count and N/L ratio. Serum cortisol level varied significantly with the handling time. RBC and WBC counts were strongly affected by the handling time. N/L ratio was very robust and did not depend on the handling time. However, the analysis of literature data has shown that the prolonged handling time (over 1 hr) and the type of immobilization significantly influence the N/L ratio, whereas the WBC count does not depend on any of considered factors. We conclude that while most blood parameters of cats are affected by routine handling time, the N/L ratio does not vary if the samples are collected within 1 hr after the capture of the animal. All other tested parameters should be treated with caution.

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Hematologic and Serum Chemistry Values of Captive Canadian Lynx

Abstract: We present baseline values for 12 hematologic and 17 serum chemistry parameters collected from 22 captive lynx (Felis lynx canadensis) 17.5 ± 0.8 lU/l.

Cited by 19 publications

References 7 publications

Hematologic and Serum Chemistry Values of the Captive European Wildcat

Hematologic and Serum Chemistry Values of the Captive European Wildcat

Hematology, Serum Chemistry, and Body Mass of Free-Ranging and Captive Canada Lynx in Minnesota

The method matters: The effect of handling time on cortisol level and blood parameters in wild cats

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