Sibayan, Glenda M.2026-06-082026-06-082008-03Sibayan, G. M. (2008). Prevalence of ectoparasites of goats (Capra hircus) in Ilocos Sur during the dry season. [Unpublished Undergraduate Thesis]. Don Mariano Marcos Memorial State University - North La Union Campus, Sapilang, Bacnotan, La Union. Lakasa ti Sirib, DMMMSU Institutional Repository.https://lakasa.dmmmsu.edu.ph/handle/123456789/1738This study was conducted to (1) identify the different ectoparasites of goats in selected towns of Ilocos Sur during the dry season; (2) determine the prevalence rate of ectoparasite infested goats of Ilocos Sur during the dry season; (3) determine the most prevalent species of ectoparasite of goats during the dry season in selected towns of Ilocos Sur. Two hundred (200) goats from ten (10) towns of Ilocos Sur were used in the identification of the ectoparasites of. The collected and preserved ectoparasites were identified at the Parasitology Laboratory of Institute of Veterinary medicine (IVM), Don Mariano Marcos Memorial State University (DMMMSU), North La Union Campus (NLUC), Bacnotan, La Union. Data were tabulated and analyzed using frequency counts, means and percentages. Data on the most prevalent species were statistically analyzed using Analysis of Variance (ANOVA). Results of the study showed that three (3) species of ectoparasites were identified in goats at selected towns of Ilocos Sur during the dry season. These were Linognathus stenopsis, Damalinea caprae and Musca domestica .All the goats examined were infested with ectoparasites. Linognathus stenopsis infestation had the highest prevalence rate with 87.5 percent, followed by Damalinea caprae with 45 percent prevalence rate. Goats infested with Musca domestica was the least with a prevalence rate of 6 percent. Analysis of variance revealed highly significant differences between the different species.en-USThesis