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Identification of the main intestinal helminths of local breed chickens (Gallus gallus domesticus Linnaeus, 1758) reared in traditional mode in the Oran region Cover

Identification of the main intestinal helminths of local breed chickens (Gallus gallus domesticus Linnaeus, 1758) reared in traditional mode in the Oran region

Helminthologia
Volume 59 (2022): Issue 2 (June 2022)
By: R. Kerroucha,  I. Medjoual,  L. Bourguig and  K. Senouci  
Open Access
|Sep 2022

Figures & Tables

Fig. 1

Ascaridia galli (Schrank, 1788), Anterior part, 5 % eosin stain, ×40. The body of this worm is semi-transparent, creamy white, and cylindrical. The anterior end is characterized by a mouth, which is surrounded by three large trilobed lips. The body is completely covered with a transversely striated cuticle. Females are considerably longer and more robust. Males are relatively shorter and smaller.
Ascaridia galli (Schrank, 1788), Anterior part, 5 % eosin stain, ×40. The body of this worm is semi-transparent, creamy white, and cylindrical. The anterior end is characterized by a mouth, which is surrounded by three large trilobed lips. The body is completely covered with a transversely striated cuticle. Females are considerably longer and more robust. Males are relatively shorter and smaller.

Fig. 2

Heterakis gallinarum (Schrank, 1788), 5 % eosin stain, × 40. The pre-cloacal suction cup is circular with a chitinous mount with a diameter of 0.07 to 0.08 mm. There is no gubernaculum. The spicules are unequal and dissimilar, a slender, long and wingless 1.5 – 2.2 mm long; the other short, 0.5 to 1.1mm wide. The caudal end is thin and slightly curved in its distal part.
Heterakis gallinarum (Schrank, 1788), 5 % eosin stain, × 40. The pre-cloacal suction cup is circular with a chitinous mount with a diameter of 0.07 to 0.08 mm. There is no gubernaculum. The spicules are unequal and dissimilar, a slender, long and wingless 1.5 – 2.2 mm long; the other short, 0.5 to 1.1mm wide. The caudal end is thin and slightly curved in its distal part.

Fig. 3

Raillietina cesticillus (Molin, 1858), hematoxylin stain, × 40. The body consists of the ‘scolex’, an unsegmented ‘neck’ and a highly segmented body called a strobila made up of a chain of ribbon-shaped proglottids. The scolex bears an apical rounded, the rostellum prominent and protruding, surrounded by four poorly developed suckers completely devoid of thorns.
Raillietina cesticillus (Molin, 1858), hematoxylin stain, × 40. The body consists of the ‘scolex’, an unsegmented ‘neck’ and a highly segmented body called a strobila made up of a chain of ribbon-shaped proglottids. The scolex bears an apical rounded, the rostellum prominent and protruding, surrounded by four poorly developed suckers completely devoid of thorns.

Fig. 4

Raillietina (Raillietina) tetragona (Molin, 1858), hematoxylin stain, × 40. This worm has a tetragonal scolex with a rostrum armed with a hundred hooks arranged in a single crown and 4 suckers lined with 8 to 10 rows of small thorns.
Raillietina (Raillietina) tetragona (Molin, 1858), hematoxylin stain, × 40. This worm has a tetragonal scolex with a rostrum armed with a hundred hooks arranged in a single crown and 4 suckers lined with 8 to 10 rows of small thorns.

Fig. 5

Infestation rate by identified helminths. The difference between nematodes and cestodes is very significant (p <0.05).
Infestation rate by identified helminths. The difference between nematodes and cestodes is very significant (p <0.05).

Fig. 6

Prevalence of identified helminth. Among the identified species, H. gallinarum represents the most widespread nematode with a rate of 60% followed by A. galli. The cestodes R. cesticillus and much more R. tetragona were found at relatively low rates.
Prevalence of identified helminth. Among the identified species, H. gallinarum represents the most widespread nematode with a rate of 60% followed by A. galli. The cestodes R. cesticillus and much more R. tetragona were found at relatively low rates.

Comparative characteristics of Ascaridia galli

SourcePresent studyEuzéby (1963)Yousfi (2012)Laouel (2017)
GenderMaleFemaleMaleFemaleMaleFemaleMaleFemale
Length (mm)21 – 7040 – 9050 – 7080 – 10017.6 – 7122.45 – 10220.8374
Width (mm)0.5 – 1.020.5 – 1.50.601.50.41 – 1.220.46 – 1.50.710.78
Spicule (mm)1 – 2.5/4/0.60 – 2.41/0.225/

Comparative characteristics of Heterakis gallinarum_

SourcePresent studyEuzéby (1963)Yousfi (2012)Laouel (2017)
GenderMaleFemaleMaleFemaleMaleFemaleMaleFemale
Length (mm)6 – 117 – 137.125.82 – 10.4211.25 – 126.0356.67
Width (mm)0.25 – 0.350.30 – 0.400.30– 0.350.21 – 0.34 0.350.387
Spicule1.5 – 2 2 – 2.17 1.33 – 2.12 1.75-2
(mm) 0.70 – 1 0.56 – 0.76

The different parasitic species collected and their locations

SpeciesLocationNumber of infested chikens
Nematodes
Ascaridia galliDifferent parts of the small intestine5
Heterakis gallinarumCaecum6
Cestodes
Raillietina cesticillusDuodenum and jejunum2
Raillietina tetragonaDuodenum and jejunum1
DOI: https://doi.org/10.2478/helm-2022-0015 | Journal eISSN: 1336-9083 | Journal ISSN: 0440-6605
Journal RSS Feed
Language: English
Page range: 170 - 178
Submitted on: Jun 22, 2021
|
Accepted on: Apr 20, 2022
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Published on: Sep 3, 2022
Published by: Slovak Academy of Sciences, Institute of Parasitology
In partnership with: Paradigm Publishing Services
Publication frequency: Volume open
Keywords:
Local breed chickens,
extensive mode,
helminths,
digestive tract,
epidemiology,
Nematodes,
Cestodes
Related subjects:
Life sciences,
Zoology,
Ecology,
Life sciences, other,
Medicine,
Clinical medicine,
Microbiology, virology and infection epidemiology

© 2022 R. Kerroucha, I. Medjoual, L. Bourguig, K. Senouci, published by Slovak Academy of Sciences, Institute of Parasitology
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

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