Gut Helminth Composition in Newly Comigrating Light Geese (Lesser Snow Goose<i>Chen caerulescens caerulescens</i>and Ross’ Goose<i>Chen rossii</i>)

Boone, Evan C.; Meiners, Scott J.; Laursen, Jeffrey R.

doi:10.1654/1525-2647-84.1.36

Cited by 3 publications

(2 citation statements)

References 21 publications

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“…Nematodes are the most widely distributed parasites of domestic and wild animals, and the genus Heterakis Dujardin, 1845 includes especially common and prevalent parasite species. Representatives of the genus have been found in domestic chickens in West and South Africa (Phiri et al, 2007;Ogbaje et al, 2012), Great Britain (Pennycott & Steel, 2001) and Germany (Kaufmann et al, 2011;Wongrak et al, 2014), in Colinus virginianus, Branta bernicla nigricans, Chen caerulescens caerulescens, Chen rossii and Anser albifrons in USA (Moore & Simberloff, 1990;Shutler et al, 2012;Amundson et al, 2016;Boone et al, 2017), in wild migratory birds and domestic waterfowl in South Asia (Hoque et al, 2014), and in birds of the families Psittacidae, Cacatuidae, Phasianidae and Anatidae in Spain (Cordón et al, 2009). In Ukraine, nematodes of the genus Heterakis have been found in domestic birds (chickens, turkeys and geese) with prevalence ranging 2.9-100.0% (Bogach & Taranenko, 2003;Zaikina & Marshalkina, 2015).…”

Section: Introductionmentioning

confidence: 99%

Comparative morphology and biology of nematodes of genus Heterakis (Nematoda, Heterakidae), parasites of the domestic goose (Anser anser) in Ukraine

Yevstafyeva¹,

Мельничук²,

Нікіфорова³

et al. 2018

Regul. Mech. Biosyst.

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The genus Heterakis Dujardin, 1845 is one of the most widely distributed genera of nematode parasites of domestic and wild birds. Geographically and ecologically predominant species include Heterakis gallinarum Schrank, 1788 and Heterakis dispar Schrank, 1790. Prevalence and occurrence of these nematodes in the domestic goose (Anser anser dom.) depend on their biological and morphological specifics which ensure the highest viability, fast growth and maximum fertility in the host. This study presents the abundance and species composition of nematodes of the genus Heterakis in the domestic goose in Ukraine. Comparative study of morphological and metrical characteristics of H. gallinarum and H. dispar adult females and males is presented. Additional morphometric characteristics are proposed for easier identification of the two species. Stages and periods of embryonic development of H. gallinarum and H. dispar nematodes obtained from domestic geese are established according to morphological and metrical characters. Of the two species, H. dispar is prevalent in domestic geese from Poltava, Kharkiv and Kyiv regions. Abundance index of this species is 9.8 specimens, and intensity of infection index is up to 62 specimens. H. gallinarum is rarer, its abundance index is 1.2 specimens and maximum intensity of infection is 30 specimens. Species-specific morphological differences are more distinct in male nematodes in the size and structure of the spicules, lateral wing-like protrusions of pseudobursas, numbers and position of tail papillae. Additional metrical characteristics differ between H. gallinarum and H. dispar nematodes, allowing us to identify not only adult specimens but also eggs. Embryonic development of both species occurs in four morphologically distinct stages: protoplast, blastomere cleavage, formation of first and second stage larvae. Eggs of H. gallinarum nematodes become infectious in eight days at 27 °С, eggs of H. dispar in four days, their viability in laboratory culture is 84.3 ± 0.58 and 91.3 ± 1.53% respectively.

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Section: Introductionmentioning

confidence: 99%

Comparative morphology and biology of nematodes of genus Heterakis (Nematoda, Heterakidae), parasites of the domestic goose (Anser anser) in Ukraine

Yevstafyeva¹,

Мельничук²,

Нікіфорова³

et al. 2018

Regul. Mech. Biosyst.

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“…Так, гетеракіси були виділені від домашніх курей, гусей, качок, куріпок, білолобих гусей, папугоподібних птахів, фазанів, дикорї водоплавної птиці у більшості країн світу, зокрема й в Україні. Причому екстенсивність ураження птиці збудником гетеракозу в окремих господарствах сягала 100% (Bogach & Taranenko, 2003;Cordón et al, 2009;Ogbaje et al, 2012;Hoque et al, 2014;Wongrak et al, 2014;Amundson et al, 2016;Boone et al, 2017).…”

Section: вступunclassified

Morphometric characteristics of embryonic development Heterakis dispar isolated from geese

Stybel

Pryima

2019

SMLNUVMB

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Knowledge of the biological properties and ecological environment of the development of helminths, especially those that cause invasive diseases of animals and humans, is extremely important for understanding the epizootic aspects and clinical manifestations of invasions. Among the domestic and wild birds, one of the dominant ones is the group of parasitic nematodes of the genus Heterakis Dujardin, 1845. The aim of this study was to study the peculiarities of the embryonic development of Heterakis dispar, isolated from domestic geese, taking into account their morphological and metrical changes. Experimental cultivation of eggs isolated from gonads of H. dispar females to their invasive stage in the laboratory. Morphological and metric changes in the process of their embryogenesis were established. The picking of nematodes was performed by the method of complete helminthological opening of the caecum of dead or forcedly killed geese. It has been determined that the eggs of nematodes of domestic geese of H. dispar species under the temperature regime of 22 ºС undergo 4 stages of exogenous development: protoplast, crushing of blastomeres, formation of the larva of the first stage, formation of the larva of the second stage. At this temperature, the development of the parasites ended in 8 days, and the viability of the embryonic stages of the development of heteroxides was 79.33 ± 0.88%. In this case, developmental stoppage and death were observed in 20.67 ± 0.88% of eggs. The protoplast stage occurred within 1–18 days, the formation of two blastomeres – 2–4 days, the formation of the first stage larvae – 2–6 days, the formation of the second stage larvae – 4–8 days. In the process of exogenous development, the metric parameters of eggs of heterakises isolated from domestic geese change. Their sizes for cultivation from the stage of the protoplast to the larvae of the second stage are characterized by a significant decrease in width by 1.2 times and a simultaneous thinning of the shell by 1.1 times. Obtained data on the timing of the formation of invasive H. dispar eggs parasite in domestic geese, as well as their viability in the process of embryonic development can be used to improve the efficiency of species identification of isolated parasites by the results of scatoscopic studies of the bird.

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Ross's Goose (Anser rossii)

Jónsson,

Ryder,

Alisauskas

2024

Birds of the World

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Gut Helminth Composition in Newly Comigrating Light Geese (Lesser Snow GooseChen caerulescens caerulescensand Ross’ GooseChen rossii)

Cited by 3 publications

References 21 publications

Comparative morphology and biology of nematodes of genus Heterakis (Nematoda, Heterakidae), parasites of the domestic goose (Anser anser) in Ukraine

Comparative morphology and biology of nematodes of genus Heterakis (Nematoda, Heterakidae), parasites of the domestic goose (Anser anser) in Ukraine

Morphometric characteristics of embryonic development Heterakis dispar isolated from geese

Ross's Goose (Anser rossii)

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