Libya’daki Evcil Atların (Equus caballus Linnaeus, 1758) Endosimbiyotik Bağırsak Siliyatları (Ciliophora)

Abstract

Bu çalışmada, endosimbiyont olan bağırsak siliyatlarının kompozisyonu ve dağılımı Libya’nın Susah kentindeki 30 evcil attan alınan fekal örneklerde araştırılmıştır. Beş familya ve 13 cinse ait 16 siliyat türü ve 1 morfotip teşhis edilmiştir. Atların beşinde herhangi bir siliyat tespit edilmemiştir. Cycloposthium cinsi, kalan atların 23’ünde C. bipalmatum türü ile saptanmış olup yaygınlığı %76.7 olarak belirlenmiştir. Buna karşılık, Holophryoides macrotricha, Tetratoxum parvum ve Triadinium caudatum türlerinin her biri %3.3 yaygınlıkla yalnızca birer atta gözlenmiştir. At başına teşhis edilen tür sayısı 0 ile 9 arasında değişmekte olup ortalama 4.3 ± 2.1’dir. Atlardaki bağırsak siliyatlarının ortalama yoğunluğu 7.0 ± 6.2 × 10⁴ hücre mL⁻¹’dir. Libya’daki atların bağırsak siliyatları ilk kez rapor edilmiştir.

Keywords

• Koprofaji
• endosimbiyont
• mikroorganizma
• protist
• Suctoria
• Trichostomatia

Endosymbiotic Intestinal Ciliates (Ciliophora) of Domestic Horses (Equus caballus Linnaeus, 1758) in Libya

Abstract

In this study, the composition and distribution of intestinal ciliates, which are endosymbionts, were investigated in fecal samples from 30 domestic horses in Susah, Libya. One morphotype and 16 ciliate species belonging to 13 genera and 5 families were identified. Five of the horses did not harbor any ciliates. The genus Cycloposthium was present in 23 of the remaining horses, represented by the species C. bipalmatum, with a prevalence of 76.7%. In contrast, Holophryoides macrotricha, Tetratoxum parvum, and Triadinium caudatum were each observed in only one horse, with a prevalence of 3.3%. The number of species identified per horse ranged from 0 to 9, with an average of 4.3 ± 2.1. The average density of intestinal ciliates in the horses was 7.0 ± 6.2 × 10⁴ cells mL⁻¹. This is the first report on intestinal ciliates in horses in Libya.

Keywords

• Coprophagy
• endosymbiont
• microorganism
• protist
• Suctoria
• Trichostomatia

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