The effect of coccidians on the condition and immune profile of molting House Sparrows (Passer domesticus)

Péter László Pap, Csongor István Vágási, Gábor Árpád Czirjá, Adriana Titilincu, Adela Pintea, Gergely Osváth, Attila Fülöp, Zoltán Barta

Research output: Contribution to journalArticle

29 Citations (Scopus)

Abstract

Feather molt is recognized as an energetically costly activity for birds, and parasite infestation during molt has the potential to reduce host fitness because parasites sequester essential nutrients and stimulate the immune system. We manipulated the coccidian parasite load of captive male House Sparrows (Passer domesticus) by suppressing the natural infection of control birds with an anticoccidial drug and infecting experimental birds with coccidian oocysts. Following infestation, the effect of chronic coccidian infection on individual condition, molt and 12 indices of physiological and immunological function was assessed. We found a significant positive relationship between infestation and heterophil/lymphocyte ratio measured at capture, indicating infectioninduced stress. We also found that coccidians negatively affected feather growth during molt: the increase in wing length of the noninfected birds was significantly higher than that of infected birds. In comparison to control birds, infected birds showed a significantly higher concentration of white blood cells and greater blood bactericidal activity. There was also a positive correlation between infection intensity, agglutination and lysis of blood in the experimentally infested birds, which indicated activation of the constitutive innate immune system during infection. Finally, the total antioxidant capacity of the blood increased significantly, while the carotenoid concentration decreased significantly in infected compared with control birds. Therefore, we showed that coccidians stimulated several measures of the constitutive innate immunity, including the bactericidal activity of the blood, and that coccidians can have significant negative effects on the health and possibly fitness of molting House Sparrows.

Original languageEnglish
Pages (from-to)330-339
Number of pages10
JournalAuk
Volume128
Issue number2
DOIs
Publication statusPublished - Apr 2011

Fingerprint

Passer domesticus
molting
bird
birds
molt
blood
bird control
feathers
immune system
feather
infection
parasites
fitness
coccidiostats
parasite load
parasite infestation
heterophils
agglutination
parasite intensity
effect

Keywords

  • Aviary
  • Bacteria killing capacity
  • Complement
  • Experimental infection
  • Feather quality
  • Immune response
  • Isospora
  • Natural antibodies

ASJC Scopus subject areas

  • Animal Science and Zoology
  • Ecology, Evolution, Behavior and Systematics

Cite this

Pap, P. L., Vágási, C. I., Czirjá, G. Á., Titilincu, A., Pintea, A., Osváth, G., ... Barta, Z. (2011). The effect of coccidians on the condition and immune profile of molting House Sparrows (Passer domesticus). Auk, 128(2), 330-339. https://doi.org/10.1525/auk.2011.10142

The effect of coccidians on the condition and immune profile of molting House Sparrows (Passer domesticus). / Pap, Péter László; Vágási, Csongor István; Czirjá, Gábor Árpád; Titilincu, Adriana; Pintea, Adela; Osváth, Gergely; Fülöp, Attila; Barta, Zoltán.

In: Auk, Vol. 128, No. 2, 04.2011, p. 330-339.

Research output: Contribution to journalArticle

Pap, PL, Vágási, CI, Czirjá, GÁ, Titilincu, A, Pintea, A, Osváth, G, Fülöp, A & Barta, Z 2011, 'The effect of coccidians on the condition and immune profile of molting House Sparrows (Passer domesticus)', Auk, vol. 128, no. 2, pp. 330-339. https://doi.org/10.1525/auk.2011.10142
Pap PL, Vágási CI, Czirjá GÁ, Titilincu A, Pintea A, Osváth G et al. The effect of coccidians on the condition and immune profile of molting House Sparrows (Passer domesticus). Auk. 2011 Apr;128(2):330-339. https://doi.org/10.1525/auk.2011.10142
Pap, Péter László ; Vágási, Csongor István ; Czirjá, Gábor Árpád ; Titilincu, Adriana ; Pintea, Adela ; Osváth, Gergely ; Fülöp, Attila ; Barta, Zoltán. / The effect of coccidians on the condition and immune profile of molting House Sparrows (Passer domesticus). In: Auk. 2011 ; Vol. 128, No. 2. pp. 330-339.
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