On species of the genusCapillariaZeder, 1800 (Nematoda) from British domestic fowl

Abstract

Four species of the genus Capillaria—C. anatis, C. bursata, C. caudinflata and C. obsignata—are described from the domestic fowl. C. bursata constitutes a new species record for Britain. Taxonomic problems concerning these species in particular, and of Capillaria species in general, are discussed in the light of experience gained from the present study.This work was carried out during the tenure of a British Egg Marketing Board research studentship and is part of a thesis accepted by the University of London for the Ph.D. degree. My thanks are due to the director of the Houghton Poultry Research Station for granting facilities for work and to the staff for their help and encouragement. Mr R. A. Avery kindly supplied me with material collected from the Wildfowl Trust, Slimbridge.

Morphological and molecular genetic characterization of three Capillaria spp. (Capillaria anatis, Capillaria pudendotecta, and Capillaria madseni) and Baruscapillaria obsignata (Nematoda: Trichuridae: Capillariinae) in avians

“…As shown in Table 3, the morphometric values of B. obsignata from chickens and swans showed some differences in the anterior and posterior body ratio of male and female worms as well as the spicule length of male worms. These values of the isolates from swans were reasonably consistent with those of B. obsignata from chickens in Europe and North America (Graybill 1924;Wakelin 1965), but not worms from black swans in the UK (Wakelin 1963). As mentioned later, worms from chickens and swans had the same 18S rDNA nucleotide Since the mute and black swans were donated from zoological gardens in Europe, it is highly possible that the origin of B. obsignata from the chickens and swans is different.…”

“…This species has a wide host spectrum. Wakelin (1965) listed 19 British avian species, including various waterfowls (ducks, geese, and black swans) and landfowls of Columbidae, Phasianidae, and Corvidae, in addition to chickens (Wakelin 1964). As shown in Table 2, the morphometric values of C. anatis from chickens kept in Japan and the Philippines were rather different, although the spicule length in male worms and the ratio between the body and esophagus lengths of male and female worms were consistent (Fig.…”

“…This species has a wide host spectrum. Wakelin (1965) listed 10 British avian species, including various waterfowls (geese and black swans), pigeons, partridges, pheasants, and turkeys, in addition to chickens (Graybill 1924;Wakelin 1963Wakelin , 1964. Morphological details of the caudal end of male worms were well illustrated by Graybill (1924) under the name Capillaria columbae which is presently known as a junior synonym of B. obsignata.…”

Integrated taxonomic approaches to seven species of capillariid nematodes (Nematoda: Trichocephalida: Trichinelloidea) in poultry from Japan and Indonesia, with special reference to their 18S rDNA phylogenetic relationships

“…Remarks: This species is the type species of the genus Baruscapillaria Moravec 1982.Itha sawi deho stsp ec tr um ; all the avian hosts recorded here have previously been reported (Graybill 1924;Wakelin 1963Wakelin , 1964Wakelin , 1965Tamaru et al 2015). Tamaru et al (2015) detected different morphometric values of B. obsignata from chickens and swans, including differences in the anterior and posterior body ratio of male and female worms as well as the spicule length of male worms.…”

“…Remarks: This species is the type species of the genus Capillaria sensu stricto as redefined by Moravec (1982). Although this species has a wide host spectrum (including chickens, ducks, and geese) (Wakelin 1964(Wakelin , 1965 with worldwide distribution (Baruš and Sergejeva 1989a), only a few worms were collected in the current study. Thus, the active prevalence of this species in Indonesia should be determined in future work.…”