Basic haematological values in the african buffalo (Syncerus caffer caffer) and in the red buffalo (Syncerus caffer nanus)

Pospíšil, Jiří; Kaše, F; Váhala, J.

doi:10.1016/0300-9629(85)90422-0

Cited by 7 publications

(4 citation statements)

References 10 publications

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“…The reference intervals and means for the 420 TB-negative buffalo over the age of 1 yr are reported in Table 1 and compared to published values for captive African buffalo, cattle, and bison. The free-ranging buffalo tested in this study had higher WBC counts than those recorded for captive buffalo by both Pospisil (1985) and ISIS (2007). The average values for MCHC, WBC counts, and neutrophils for our sample of buffalo fall above the reference ranges published for cattle, while the buffalo average for MCV falls below the published cattle range.…”

Section: Resultsmentioning

confidence: 44%

“…This may have influenced our reference ranges, especially the wide variability of the leukograms. Two of the comparison studies had sample sizes of less than 40 (Pospisil, 1985;ISIS, 2007), so that minimum-maximum ranges, rather than reference ranges, were shown. Despite these difficulties, the differences in hematology between cattle and captive and free-ranging buffalo emphasize the importance of using species-specific ref- F is the test statistic from which significant levels (P values) for general linear models are calculated.…”

Section: Discussionmentioning

confidence: 99%

“…We compare our results for free-ranging African buffalo with published hematologic data from captive African buffalo (Pospisil et al, 1985;International Species Information System [ISIS], 2007), American bison (Bos bison; Miller et al, 1989), and cattle (Bos taurus; Smith, 2001). The ISIS maintains an electronic central database of animals held in zoological institutions, and 676 member institutions provide health and genetic data on animals, with the primary objective of managing zoo populations for species conservation.…”

Section: Statistical Analysesmentioning

confidence: 99%

“…Insofar as hematologic values reflect animal health, nutrition, and body condition, we would also expect hematology to vary with these demographic and environmental factors. Indeed, hematologic studies in other species have shown that younger ruminants often have higher hematocrit and increased mean corpuscular volume (MCV), mean corpuscular hemoglobin (MCH), and mean corpuscular hemoglo-bin concentration (MCHC) compared to older animals (Pospisil, 1985;Perez et al, 2003;Brun-Hansen, 2006). It has also been noted that males often have higher hematocrit than females (Lumsden, 1980;Perez et al, 2003), and seasonal variability in hematologic values has been demonstrated in other species such as tortoises (Lawrence, 1987) and dolphins (Hall et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of Hematologic Values in Free-Ranging African Buffalo (Syncerus Caffer)

Beechler¹,

Jolles²,

Ezenwa³

2009

Journal of Wildlife Diseases

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As part of a large-scale disease screening program, blood samples were collected from 534 African buffalo (Syncerus caffer) in South Africa's Hluhluwe-iMfolozi Park in October 2005 and May 2006 to establish age- and sex-specific reference intervals for erythrogram and leukogram values. Sixty-seven of the animals were positive for bovine tuberculosis (TB), allowing for comparisons between TB-positive and TB-negative groups. Positive animals had basopenia and slight lymphopenia compared to TB-negative animals. Blood values were compared to those reported for captive African buffalo, American bison (Bos bison), and cattle (Bos taurus). The free-ranging buffalo sampled in this study had higher white blood cell counts than captive buffalo, and this difference was driven by lymphocytes. Free-ranging buffalo also had higher red blood cell counts, mean corpuscular hemoglobin concentration (MCHC), white blood cell counts, neutrophils and lymphocytes, and lower mean corpuscular volume (MCV) than cattle. Demographic and environmental factors strongly affected hematologic values in the study population. Older animals had significantly higher hemoglobin, hematocrit, MCV, and mean corpuscular hemoglobin (MCH), while younger animals had a higher red blood cell count, red cell distribution width (RDW), and white blood cell count, which was due to lymphocytes and basophils. Females had a higher hemoglobin concentration, hematocrit, MCV, MCH, and basophils than males. At the end of the wet season, hemoglobin, red blood cell count, hematocrit, MCHC, RDW, white blood cell count, and neutrophils were all significantly higher, while basophils and MCV were lower, than at the end of the dry season. Our results emphasize the need to use species-specific data when interpreting hematologic values and point to important differences in hematology between captive and free-ranging animals of the same species. Strong variability in hematologic values with animal age and sex, season, and herd affiliation indicates that ''normal'' hematologic values in wild animals vary throughout their lives and subject to fluctuating environmental conditions.

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Section: Resultsmentioning

confidence: 44%

Section: Discussionmentioning

confidence: 99%

Section: Statistical Analysesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Evaluation of Hematologic Values in Free-Ranging African Buffalo (Syncerus Caffer)

Beechler¹,

Jolles²,

Ezenwa³

2009

Journal of Wildlife Diseases

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Pro-oxidant and antioxidant processes in gas gland and other tissues of cod (Gadus morhua)

et al. 1993

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The glutathione S-transferases of fish

Nimmo

1987

Fish Physiol Biochem

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Substantial soluble glutathione S-transferase activity and millimolar reduced glutathione (GSH) are present in most tissues of both teleosts and elasmobranchs. The hepatic enzymes of fish conjugate a range of electrophilic substrates with GSH, although their specificities are less broad than those of the transferases in rodent liver. There is no good evidence that fish transferases have ligandin-like activity or a 'suicide' function. All fish livers tested have several transferase isoenzymes. They are dimers of subunits whose Mrs are about 25 kDa and which may have different catalytic properties. In some species transferase activity is induced by agents such as phenols or 3-methylcholanthrene. Glutathione S-transferases are important detoxication enzymes in fish.

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Basic haematological values in the african buffalo (Syncerus caffer caffer) and in the red buffalo (Syncerus caffer nanus)

Cited by 7 publications

References 10 publications

Evaluation of Hematologic Values in Free-Ranging African Buffalo (Syncerus Caffer)

Evaluation of Hematologic Values in Free-Ranging African Buffalo (Syncerus Caffer)

Pro-oxidant and antioxidant processes in gas gland and other tissues of cod (Gadus morhua)

The glutathione S-transferases of fish

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