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Synergistic effect of migrating Ascaris larvae and Escherichia coli in piglets

Published online by Cambridge University Press:  05 June 2009

S. O. Adedeji ,
E. O. Ogunba  and
O. O. Dipeolu
S. O. Adedeji
Affiliation:
Department of Medical Microbiology, University College Hospital, Ibadan, Nigeria
E. O. Ogunba
Affiliation:
Department of Medical Microbiology, University College Hospital, Ibadan, Nigeria
O. O. Dipeolu
Affiliation:
Department of Veterinary Microbiology and Parasitology, University of Ibadan, Nigeria
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Abstract

The effect of intestinal flora on the establishment, development and pathogenicity of Ascaris suum larvae in piglets (Large White breed) was investigated. The infected piglets with Ascaris and Escherichia coli showed signs of pneumonia, cough with respiratory difficulties initially even though these moderated with time. They lost appetite and showed signs of unthriftiness with loss of weight. The packed cell volume was normal but the differential leucocyte counts of the pigs infected with Ascaris larvae and bacteria had high neutrophils, unlike the very high lymphocyte count observed in piglets with ascarids only. The piglets had generalized serous atrophy of body fat. The pericardial and perirenal fats were gelatinous. There was a firm and nodular grey and red hepatization with abscess pockets in the intermediate and anterior one third of the diaphragmatic lobes of the lungs. The liver contained greyish-white and depressed focus immediately dorsal to the area of attachment to the gall bladder with multifocal areas. There was no significant gross lesion in the control animals. Cultural and microscopic examinations of some internal organs of the infected animals showed that bacteria were carried to the lungs by the migrating Ascaris larvae. The combined synergistic effect of Ascaris larvae and E. coli was also investigated and it was concluded that the two agents (A. suum larvae and E. coli) worked together synergistically.

Keywords

Ascaris suumpigEscherichia colipathologysynergism
Type
Research Article
Information
Journal of Helminthology , Volume 63 , Issue 1 , March 1989 , pp. 19 - 24
Copyright
Copyright © Cambridge University Press 1989

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References

REFERENCES

Burch, J. W. (1930) The Missouri plan of growing pigs. University of Missouri College of Agriculture Circular, 259, 1–12.Google Scholar
Hansen, M. F., Olsen, L. J. & Ackert, J. E. (1954) Improved techniques for culturing and administering ascarid eggs to experimental chicks. Experimental Parasitology, 3, 464–472.CrossRefGoogle ScholarPubMed
Gafaar, S. M. (1975) Relationship of Ascaris suum infections to some enteric diseases of young pigs. 20th World Veterinary Congress, Thessaloniki, Greece 1975. Summaries. Volume I, 227–228.Google Scholar
Jung, R. C. (1953) A study of the pneumonitis due to larval ascaris infection. Abstract of Theses Tulane University of Louisiana, 54, 79–83.Google Scholar
Lee, K. J. & Huang, K. J. (1975) Study on the relationship between infectious pneumonia of pigs and Ascaris suum infestation. Journal of The Chinese Society of Veterinary Science, 1, 24–30.Google Scholar
Nayak, D. P. & Kelley, G. W. (1965) Synergistic effect of Ascaris migration and influenza infection in mice. Journal of Parasitology, 51, 297–298.CrossRefGoogle ScholarPubMed
Panasyuk, D. I., Khutoretskii, E. S., Arkhipov, I. A., Rashkin, V. A. & Severov, A. S. (1975) Association of helminths and microflora in the pig. Veterinariya, No. 4, 58–59.Google Scholar
Przyjalkowski, Z. & Wescott, R. B. (1969) Trichinella spiralis. Establishment in gnotobiotic mice affected by Bacillus mesentericus, Bacillus subtilis and Pseudomonas aeruginosa. Experimental Parasitology, 25, 8–12.CrossRefGoogle ScholarPubMed
Ransom, B. H. (1927) The prevention of roundworms in pigs. United States Department of Agriculture leaflet, No. 5, 1–8.Google Scholar
Roberts, F. H. S. (1934) The large roundworm of pigs Ascaris lumbricoides L. 1758. Its life history in Queensland, economic influence and control. Bulletin, Animal Health Station, Yeerongpilly, Queensland, No. 1, 1–81.Google Scholar
Schwarts, B. (1937) Internal parasites of swine. United States Agriculture Farmers Bulletin, No. 1787, 1–46.Google Scholar
Spindler, L. A. (1947) The effect of experimental infections with ascarids on the growth of pigs. Proceedings of the Helminthological Society of Washington, 14, 58–63.Google ScholarPubMed
Strafuse, A. C. & Zimmermann, W. J. (1967) Haematological changes and clinical signs of trichinosis in pigs. American Journal of Veterinary Research, 124, 833–836.Google Scholar
Taylor, E. L. & Purchase, H. S. (1931) Do penetrating nematode larvae assist bacterial invasion from the bowel? Parasitology, 23, 301–309.CrossRefGoogle Scholar