Comparative morphology of the species of Libyostrongylus and Codiostomum, parasites from ostriches, Struthio camelus, with a identification key to the species

Ederli, Nicole Brand; Oliveira, Francisco Carlos Rodrigues de

doi:10.1590/s1984-29612014061

Cited by 8 publications

(6 citation statements)

References 28 publications

(43 reference statements)

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“…Parasite infestation in ostriches is most often manifested by general depression, inactivity, decreased appetite, growth and development retardation, and gastrointestinal upset. Taking into account the data presented by other researchers (Ederli & de Oliveira, 2014), we differentiated helminth eggs isolated from ostriches from different regions of Ukraine (Table 2). We made a parasitological dissection of two corpses of 3 and 4-month ostriches.…”

Section: Resultsmentioning

confidence: 99%

“…The key to success in this area is three factors: a complex of veterinary preventive measures, a high-quality feed base, strict adherence to the technological process (Ipek & Sahan, 2004). One of the most common problems in captive breeding of ostriches is the fight against parasitic diseases (Ederli & de Oliveira, 2014;da Silva & Langoni, 2016;Feng et al, 2017). Therefore, the study of the characteristics of parasitic diseases of ostriches in Ukraine is a necessary strategy for maintaining the health of birds and obtaining safe products.…”

Section: Introductionmentioning

confidence: 99%

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Endoparasic diseases of ostriches in eastern Ukraine

Paliy¹,

Сумакова²,

Петров³

2020

Ukr J Ecol

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In ostrich farming is difficult to obtain the necessary production and economic results without protection of bird health. We determined the incidence of parasitic ostriches during the period of growing and keeping on specialized eco-zoos. Samples from small and large farms, as well as eco-parks in Kharkiv, Dnepr and Donetsk regions of Ukraine, were examined during 2016- 2020. We performed a parasitological study of 159 samples from three species of ostriches (black African ostrich, Australian common Emu (Dromaius), Rhea). Infestation of ostriches of different ages with two types of nematodes and Eimeria was established. We determoined that the population of ostriches in specialized farms and eco-zoos was infested with nematodes and protozoa with an extensiveness of invasion from 7.7% to 71.4% among adult birds, while young ostriches were infested with Emeria from 20.0% to 44.4%. The largest invasion by helminths and protozoa was observed among black African ostriches in Kharkiv region (41.4%), in Dnepr region it was 33.3%, and in Donetsk it reached 34.1%. Among the livestock of ostriches, there were both mono and mixinvasions. Most often, this was an invasion by Trichostrongylus spp. and Eimeria spp. in African black ostriches, capillaries and Eimeria in Emu. In Kharkiv region, the invasion of Capillaria by Trichostrongylus in African ostriches and Trichostrongylus in Emu were found when they were kept together. Acute and chronic eimeriosis disease can lead to the death of ostriches at the age of 3-4 months.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Endoparasic diseases of ostriches in eastern Ukraine

Paliy¹,

Сумакова²,

Петров³

2020

Ukr J Ecol

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“…Therefore, we suggest taking into account 22 morphometric parameters that characterize the size of the esophagus and body in its various parts (10 parameters), the location of the anus and excretory pore (2 parameters), the size of the ovijector, sphincter, ejector, vulva and its location on the body of the parasite (7 parameters). Scientific works have already pointed to the copulatory apparatus of females, since its morphological and metric parameters are of great importance in species identification (Ederli & Oliveira, 2014;Sukee et al, 2018). According to the data of Skriabyn et al (1954), it was proposed to take into account 7 parameters that characterize the total length, width at the vulva area, the location of the nerve ring, vulva, and anus, the size of the vulva slit, as well as the ovijector in the metric identification of T. tenuis females.…”

Section: Discussionmentioning

confidence: 99%

Differential species traits of Trichostrongylus tenuis (Nematoda, Trichostrongylidae)

Євстаф’єва

Starodub

Pisarenko

et al. 2020

Regul. Mech. Biosyst.

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Trichostrongylus tenuis Mehlin, 1846 is a helminth species that parasitizes in the gastrointestinal tract of birds and causes trichostrongylosis. Research on the differential features of the pathogen at various stages of development facilitates timely finding of the foci of infection and providing recommendations for prevention and control. In the present study, the differential species traits of male and female Trichostrongylus nematodes parasitizing in the domestic goose were examined. The nematodes were obtained in helminthological dissection of the intestine of birds kept at farms and private households in Poltava region, Ukraine. It was revealed that the morphological features of T. tenuis females that should be considered in species identification include the structural specifics of the reproductive system and the tail end. 22 metric parameters were suggested for species identification, including the female body measurements for different parts, specifics of vulva and anus location, sizes of the ovijector, sphincter, ejector and vulval area. Differences were found in the metric parameters of the lateral crests of the cuticle in female nematodes in relation to the position of crests on the parasite’s bodies. The cuticular crests were absent at 0.1 mm from the head and tail ends, and the length of crests was 9.3 mm in total. The longest and widest crests were observed in the middle of the body, the shortest were found in the anus area, and the narrowest crests were from the anterior part of esophagus to its middle. The distance between crests varied 0.2–3.0 μm, the longest at the transition of esophagus into the intestine and the shortest in area between the vulva and the anus. The metric parameters of T. tenuis eggs obtained from bird feces and in the nematode uterus differed significantly by 5 characters. The collected data on the morphological and metric parameters of females and eggs of T. tenuis can be used in species identification and understanding of the taxonomic position of that species.

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“…Sin embargo, el análisis de las muestras mediante la técnica de flotación, no permite afirmar el diagnóstico definitivo de los huevos de estos parásitos, debido a que este género es indistinguible del nematodo Codiostomum struthionis. Además sus larvas también poseen una morfología similar por lo que la técnica recomendada para su clasificación es el coprocultivo (6,7,17).…”

Section: Discussionunclassified

Identificación de parásitos gastrointestinales en un criadero de avestruces (Struthio camelus) del departamento del Cauca

Campuzano¹,

Calderón²,

Muñoz³

et al. 2019

Rev Colombiana Cienc Anim. RECIA

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Los avestruces poseen características productivas que la hacen una especie atractiva para el mercado de carne y huevos, además de otros subproductos como plumas, grasas, y piel. En diferentes países del mundo, incluyendo a Colombia, la producción de esta especie está aumentando y para mantener su población en cautiverio se están tomando medidas preventivas contra enfermedades virales, bacterianas y parasitarias. El objetivo de este trabajo fueidentificar parásitos gastrointestinales en un criadero de avestruces del departamento del Cauca. Para el estudio, se colectó material coprológico de 38 animales, 19 adultos (> 7 años de edad), 9 Juveniles (1 año), 10 polluelos (1 mes), siendo enviado a 4 °C a un laboratorio donde fue procesado y examinado. Se identificaron quistes compatibles con Eimeria sp. (15,7%), Balantidium sp. (13,2%) y huevos compatibles con Libyostrongylus sp. (10,5%), no hubo correlación entre las edades y la carga parasitaria, así como, el sexo y la carga parasitaria. A pesar de que los animales muestreados no presentaron signos clínicos de enfermedad parasitaria, es necesario realizar más estudios para comprender ciclo biológico de estos parásitos en los avestruces de la región, en el presente trabajo se sugiere la presencia de Libyostrongylus sp., el cual ya ha sido reportado una vez en Colombia.

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Comparative morphology of the species of Libyostrongylus and Codiostomum, parasites from ostriches, Struthio camelus, with a identification key to the species

Cited by 8 publications

References 28 publications

Endoparasic diseases of ostriches in eastern Ukraine

Endoparasic diseases of ostriches in eastern Ukraine

Differential species traits of Trichostrongylus tenuis (Nematoda, Trichostrongylidae)

Identificación de parásitos gastrointestinales en un criadero de avestruces (Struthio camelus) del departamento del Cauca

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