Prevalence of Gastrointestinal Parasitic Infections in Sheep and Goats of Sandwip Island, Chattogram, Bangladesh

Öz

Gastrointestinal (GI) parasitic infection is considered a common problem in sheep and goat production in Bangladesh. The current investigation was undertaken to determine the prevalence of GI parasitic infection and its associated risk factors (e.g., age, sex, nutritional & deworming status etc.) in sheep and goats of the Sandwip Island, Chattogram, Bangladesh. A total of 330 faecal samples of which 220 sheep and 110 goats were taken using a random sampling method. All the samples were subjected to routine coproscopy (e.g., direct smear, flotation and sedimentation) to detect the eggs/oocysts of helminths and protozoan parasites. Results demonstrated that the overall prevalence of GI parasitic infections was 68.64% in sheep and 61.82% in goats. The frequency of nematodes and trematodes was higher in comparison to cestodes and protozoan infections in both sheep and goats of all the three study areas. Age-specific prevalence demonstrated that adult goats had significantly higher GI parasitic infections in comparison to the young population. Female sheep were more prone to GI parasitic infections whereas the opposite trend was noticed for goats. The sheep and goats having the ‘poor’ body condition score/nutritional status were more susceptible to parasitic infections compared to moderate and good health conditions. Rarely or non-dewormed sheep and goats also harboured more GI parasites compared ‘dewormed animals’. The current investigation was fresh of its types in the study areas, therefore, we recommended extensive studies including epidemiological and molecular approaches to identify GI parasitic diseases and their associated risk factors.

Anahtar Kelimeler

• Gastrointestinal parasitic infection
• goat
• prevalence
• sheep

Bangladeş, Chattogram, Sandwip Adası'ndaki Koyun ve Keçilerde Gastrointestinal Parazit Enfeksiyonlarının Prevalansı

Öz

Gastrointestinal (GI) parazit enfeksiyonu, Bangladeş'te koyun ve keçi yetiştiriciliğinde yaygın bir sorun olarak kabul edilmektedir. Mevcut araştırma, Bangladeş'in Chattogram yöresindeki Sandwip Adası koyun ve keçilerinde GI parazit enfeksiyon prevalansını ve ilişkili risk faktörlerini (örneğin, yaş, cinsiyet, beslenme ve parazitlerden arındırma durumu vb.) belirlemek için yapıldı. Rastgele örnekleme yöntemiyle 220 koyun ve 110 keçi olmak üzere toplam 330 dışkı örneği alınmıştır. Helmintlerin ve protozoan parazitlerin yumurtalarını / ookistlerini tespit etmek için tüm numuneler rutin dışkı muayenesine (örn., Doğrudan yayma, yüzdürme ve sedimantasyon) tabi tutulmuştur. Sonuçlar, GI paraziter enfeksiyonların genel prevalansının koyunlarda %68.64 ve keçilerde %61.82 olduğunu göstermiştir. Nematod ve trematod prevalansı, üç çalışma alanının her ikisinde de hem koyun hem de keçilerde sestod ve protozoan enfeksiyonlarına kıyasla daha yüksek bulunmuştur. Yetişkin keçiler, genç popülasyona kıyasla önemli ölçüde daha yüksek GI parazit enfeksiyonları göstermiştir. Dişi koyunlar GI parazit enfeksiyonlarına daha yatkın olmasına rağmen, keçilerde bunun tersi bir eğilim tespit edildi. Vücut kondisyon puanı / beslenme durumu kötü olan koyun ve keçiler, orta ve iyi sağlık koşullarına göre paraziter enfeksiyonlara daha duyarlı olduğu belirlendi. Nadiren arındırılmış ya da parazitlerden arındırılmamış koyun ve keçiler, "parazitlerden arındırılmış hayvanlara" kıyasla daha fazla GI paraziti barındırdığı ortaya konmuştur. Mevcut araştırma, çalışma alanlarında tespit edilen türler bakımından ilkdir, bu nedenle, GI paraziter hastalıkları ve bunlarla ilişkili risk faktörlerini tanımlamak için epidemiyolojik ve moleküler yaklaşımları içeren kapsamlı çalışmaların yapılması önerilmektedir.

Anahtar Kelimeler

• Gastrointestinal paraziter enfeksiyon
• keçi
• prevalans
• koyun

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