Jenis dan Tingkat Serangan Cacing Parasitik Berdasarkan Perbedaan Tingkatan Umur pada Insang dan Saluran Pencernaan Ikan Patin (Pangasius djambal) pada Kolam Budidaya di Tanjung Morawa

Abstract

Research on the type and level of parasitic worm attacks based on the difference of age groups in the catfis’s (Pangasius djambal) gills and digestive tract at aquaculture ponds in Tanjung Morawa was conducted at March-April 2015 to determine the type and level of parasitic worm’s attacks based on different age levels in the gills and digestive of catfish (Pangasius djambal). The sample used in this research were seed aged catfish; 30 one-to-two-month catfish, 10 three -to-four-month catfish and 10 five-to-six-month catfish. The results showed the types of parasitic worms on some age groups have the same type which is Dactylogyrus sp. dan Gyrodactylus sp. Which attack gill organs and Camallanus sp. which attacks the digestive tract organs (gut). The prevalence of Dactylogyrus sp. on one-to-two- month seed is 90% ( almost always) with the intensity of 9,1; on three-to-four month-aged catfish is 100% (alwasy) with the intensity of 236,4. The prevalence of Gyrodactylus sp. on one-to-two-month seed is 16,6% (often) with the intensity of 8,6; on the three-to-four-month-aged catfish is 40% (commonly) with the intensity of 9,5 and on five-to-six-month catfish is 60% (frequently) with the intensity of 12,4. The prevalence of Camallanus sp. in digestive tract organs on one-to-two-month seed is 40% (commonly) with the intensity of 4; on the three-to-four-month-aged catfish is 70% (usually) with the intensity of 4,1 and on five-to-six-month catfish is 60% (frequently) with the intensity of 5,5.