Morphological and Biological Characteristics of Amidostomum Anseris (Nematoda, Amidostomatidae) from Anser anser domesticus

Vestnik Zoologii Pub Date : 2019-02-01 DOI:10.2478/vzoo-2019-0007

V. Yevstafieva, V. Stybel, V. Melnychuk, О. В. Prijma, I. Yatsenko, A. Antipov, T. Bakhur, V. Goncharenko, R. Pidborska, V. Shahanenko, V. Dzhmil

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引用次数: 4

Abstract

Abstract Morphological characteristics were studied in adult and embryonic Amidostomum anseris (Zeder, 1800) obtained from domestic goose Anser anser domesticus Linnaeus, 1758. The studied characters included species-specific morphometric indices of male and female specimens and differential characters of sex-related dimorphism in that species. Stages and periods of embryonic development, and viability of the nematodes were studied at laboratory conditions. Size dimorphism in A. anseris was considerable, females were significantly larger (by 10.09–27.98 %) than males by 11 parameters. Additional metric characters were proposed to enhance effectiveness of differentiation of female and male A. anseris specimens. Under laboratory conditions, embryonic development of A. anseris occurs in four stages: blastomere cleavage; larval formation; formation of non-infective larvae I and II; formation of infective larva III which hatches from the egg. Infective larvae develop at 23 °С in six days, and their viability was up to 78.33 ± 2.08 %.

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家蚕绒口线虫(线虫纲，绒口虫科)的形态和生物学特征

摘要对1758年家鹅Anser Anser domesticus Linnaeus的成虫和胚胎的形态特征进行了研究。研究的性状包括雄性和雌性标本的种特异性形态计量指标以及该物种性别相关二态性的差异特征。在实验室条件下研究了线虫的胚胎发育阶段和周期以及生存能力。在11个指标上，雌虫明显大于雄虫(10.09 ~ 27.98%)。此外，还提出了一些额外的度量特征，以提高雄、雌标本的鉴别效率。在实验室条件下，家蚕的胚胎发育分为四个阶段:卵裂球分裂;幼虫形成;形成非传染性的I和II幼虫;由卵孵化出的具有传染性的幼虫III的形成。感染幼虫在23°С温度下发育6 d，存活率可达78.33±2.08%。

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Vestnik Zoologii

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