Investigation into Clinicopathological and Pathological Findings, Prognosis, and Aetiology of Lorikeet Paralysis Syndrome in Rainbow Lorikeets (Trichoglossus Haematodus)

Overview

Journal Aust Vet J

Specialty Veterinary Medicine

Date 2021 Jul 14

PMID 34258761

Citations 1

Authors

C Lacasse

K Rose

M Allen

M P Ward

L A Pulscher

A Giles

J Hall

D N Phalen

Affiliations

Soon will be listed here.

Abstract

Objective: To report the temporal and spatial distribution of rainbow lorikeets presenting with lorikeet paralysis syndrome (LPS) and their clinicopathologic and pathologic findings, exposure to toxins, and response to treatment.

Methods: Records of lorikeets admitted in 2017 and 2018 to facilities in south-east Queensland (QLD) were reviewed and LPS and non-LPS cases were mapped and their distribution compared. Plasma biochemistries and complete blood counts were done on 20 representative lorikeets from south-east QLD and Grafton, New South Wales (NSW). Tissues from 28 lorikeets were examined histologically. Samples were tested for pesticides (n = 19), toxic elements (n = 23), botulism (n = 15) and alcohol (n = 5).

Results: LPS occurred in warmer months. Affected lorikeets were found across south-east QLD. Hotspots were identified in Brisbane and the Sunshine Coast. Lorikeets had a heterophilic leucocytosis, elevated muscle enzymes, uric acid and sodium and chloride. Specific lesions were not found. Exposure to cadmium was common in LPS and non-LPS lorikeets. Treated lorikeets had a 60-93% See Table 2 depending on severity of signs.

Clinical Significance: The primary differential diagnosis for lorikeets presenting with lower motor neuron signs during spring, summer and autumn in northern NSW and south-east Queensland should be LPS. With supportive care, prognosis is fair to good.

Citing Articles

Investigation into clinicopathological and pathological findings, prognosis, and aetiology of lorikeet paralysis syndrome in rainbow lorikeets (Trichoglossus haematodus).

Lacasse C, Rose K, Allen M, Ward M, Pulscher L, Giles A Aust Vet J. 2021; 99(10):432-444.

PMID: 34258761 PMC: 8518122. DOI: 10.1111/avj.13107.

References

McOrist S, Perry R . Encephalomyelitis in free-living rainbow lorikeets (Trichoglossus haematodus). Avian Pathol. 1986; 15(4):783-9. DOI: 10.1080/03079458608436340. View

DellAgnello F, Natali C, Bertolino S, Fattorini L, Fedele E, Foggi B . Assessment of seasonal variation of diet composition in rodents using DNA barcoding and Real-Time PCR. Sci Rep. 2019; 9(1):14124. PMC: 6773709. DOI: 10.1038/s41598-019-50676-1. View

Sriram A, Roe W, Booth M, Gartrell B . Lead exposure in an urban, free-ranging parrot: Investigating prevalence, effect and source attribution using stable isotope analysis. Sci Total Environ. 2018; 634:109-115. DOI: 10.1016/j.scitotenv.2018.03.267. View

Clarkson P . Exertional rhabdomyolysis and acute renal failure in marathon runners. Sports Med. 2007; 37(4-5):361-3. DOI: 10.2165/00007256-200737040-00022. View

Seong P, Cho S, Park K, Kang G, Park B, Moon S . Characterization of Chicken By-products by Mean of Proximate and Nutritional Compositions. Korean J Food Sci Anim Resour. 2016; 35(2):179-88. PMC: 4682518. DOI: 10.5851/kosfa.2015.35.2.179. View

Lacasse C, Rose K, Allen M, Ward M, Pulscher L, Giles A . Investigation into clinicopathological and pathological findings, prognosis, and aetiology of lorikeet paralysis syndrome in rainbow lorikeets (Trichoglossus haematodus). Aust Vet J. 2021; 99(10):432-444. PMC: 8518122. DOI: 10.1111/avj.13107. View

Gross W, SIEGEL H . Evaluation of the heterophil/lymphocyte ratio as a measure of stress in chickens. Avian Dis. 1983; 27(4):972-9. View

Zhang R, Wang Y, Wang C, Zhao P, Liu H, Li J . Ameliorative Effects of Dietary Selenium Against Cadmium Toxicity Is Related to Changes in Trace Elements in Chicken Kidneys. Biol Trace Elem Res. 2016; 176(2):391-400. DOI: 10.1007/s12011-016-0825-x. View

Ward M, Carpenter T . Techniques for analysis of disease clustering in space and in time in veterinary epidemiology. Prev Vet Med. 2000; 45(3-4):257-84. DOI: 10.1016/s0167-5877(00)00133-1. View

10.

Lumeij J . Plasma urea, creatinine and uric acid concentrations in response to dehydration in racing pigeons (Columba livia domestica). Avian Pathol. 1987; 16(3):377-82. DOI: 10.1080/03079458708436388. View

11.

Pulscher L, Gray R, McQuilty R, Rose K, Welbergen J, Phalen D . Investigation into the utility of flying foxes as bioindicators for environmental metal pollution reveals evidence of diminished lead but significant cadmium exposure. Chemosphere. 2020; 254:126839. DOI: 10.1016/j.chemosphere.2020.126839. View

12.

Chang W, Eden J, Hall J, Shi M, Rose K, Holmes E . Metatranscriptomic Analysis of Virus Diversity in Urban Wild Birds with Paretic Disease. J Virol. 2020; 94(18). PMC: 7459558. DOI: 10.1128/JVI.00606-20. View

13.

Brumbaugh W, Mora M, May T, Phalen D . Metal exposure and effects in voles and small birds near a mining haul road in Cape Krusenstern National Monument, Alaska. Environ Monit Assess. 2009; 170(1-4):73-86. DOI: 10.1007/s10661-009-1216-y. View

14.

Hu Y, Zhang W, Chen G, Cheng H, Tao S . Public health risk of trace metals in fresh chicken meat products on the food markets of a major production region in southern China. Environ Pollut. 2017; 234:667-676. DOI: 10.1016/j.envpol.2017.12.006. View

15.

Winship K . Toxicity of tin and its compounds. Adverse Drug React Acute Poisoning Rev. 1988; 7(1):19-38. View