First record of Anisakis sp. third stage larvae (Nematoda) occurrence inPacific Jack Mackerel from a fish processing and packaging plant innorthern Iran

Purpose: This research was performed with the aim of hygienic tracking for fish-borneparasitic contamination imported by Jack mackerel fish from certain parts of the world in afish processing unit during a health inspection in the north region of Iran in the summer ofthe year ۲۰۱۹.Methods: A sample of ۱۵۰ jack mackerel fish specimens were selected at random. All thefish had the same length and weight sizes at average measures of ۵۳.۶ cm and ۲.۰۴ kg. Thecysts consisting of robust parasites seen on mesentery and muscles were then removed larvalfrom their locality and placed in small glass jars containing ۱۰% formalin and transferred tothe lab.Results: A total of ۱۰۰% of Jack Mackerel (Trachurus symmetricus) fish cargo, as a portionof human food, imported from New Zealand were severely contaminated with Anisakis sp.worm parasite. The parasite intensity ranges were between ۲۵ and ۷۰ individuals per fish,and the total of parasites was ۷۱۲۵ individuals. The mean intensity reached ۴۷.۵. Theencysted parasite specimens were observed in the muscles, mesentery, and peritoneum ofviscera around the abdominal cavity of mackerel whereas seeing as twisted third-stagelarvae.Conclusion: As an aspect of human sanitary, the Anisakis species due to being zoonoses hassignificantly important. For this reason, people should avoid consuming raw or semi-cookedmarine fish. The present study is the first available report of Anisakis sp. contamination inJack mackerel imported to Iran.

کلیدواژه ها:

Jack Mackerel ، Encapsulate ، Contaminate ، Cargo ، New Zealand