ArticleScientific reports2024
Hematologic parameters in female alpacas during age progression: a retrospective study.
Article in Scientific reports, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed, 3 citations in OpenAlex.
- Evaluation of probiotic supplementation to enhance growth, immune response, intestinal function, and survival in extensively raised neonatal alpacas in the Peruvian Central-southern Andes.Veterinary and animal science · 2026Article
- Establishment and evaluation of hematological and serum biochemical reference intervals in Chinese local donkey populations.BMC veterinary research · 2026Article
- Serum Iron and Its Relationship with Hematologic Parameters in Healthy Female Alpacas at Two Different Ages.Biological trace element research · 2026Article
- Influence of age on biochemical serum parameters in female alpacas - A retrospective study.Heliyon · 2025Article
- Characterization of white blood cell ratios in South American camelids presented at a veterinary teaching hospital.Scientific reports · 2024Article
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Authors and funding
5 authors at 2 institutions in 1 country.
Funding
Abstract
Alpacas, like all camelids, have elliptical red blood cells (RBCs) in contrast to other mammals. This particular shape is important for increased osmotic resistance and stability. Age-related changes in the RBC count are known in other species, with alterations in both red and white blood cells being described. In alpacas, there are few data on age-related changes, and only a comparison of crias with adult animals. We characterized age-related hematologic changes in a study of 21 female alpacas from a research herd. A total of 87 records of clinically healthy alpacas of different ages were statistically analyzed retrospectively from the hematologic records over a nine-year period. Significant positive correlations of age with hemoglobin (Hb), HCT, MCV, MCH, neutrophils, platelet-to-lymphocyte ratio (PLR), and neutrophil-to-lymphocyte ratio (NLR) were found as well as significant negative correlations of age with lymphocytes in addition to lymphocyte-to-monocyte ratio (LMR). A paired comparison of eight older animals in the herd at three different ages also showed significant differences in the parameters Hb, HCT, MCV, MCH, MCHC, lymphocytes, eosinophils and neutrophils. Similar changes in hematologic parameters have been reported in other species and should be taken into account when interpreting hematologic results in alpacas.
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