Ảnh hưởng của một số yếu tố đến chất lượng sản phẩm sau thu hoạch trên tàu nghề lưới vây tại Thành phố Nha Trang, Tỉnh Khánh Hòa

Abstract

The output of purse seine fishing in Nha Trang city ranks third, after trawling and gillnetting. The main products of purse seine fishing are exported, such as tuna, anchovies, etc. The quality of the products is increasingly controlled strictly and according to strict procedures. During the exploitation process, there are a number of factors that greatly affect the quality of the products, specifically as follows: net collection time, fish collection within 2-3 hours for a net batch reaching 87.5% is good, average is 12.5%, if the net collection time is 3 - <4 hours or over 4 hours, the good quality decreases, the average quality increases. For a trip of less than 8 days, the highest product quality is 95.6% which is good, 4.3% is average and there is no poor quality, if the time of a trip of fishing increases, the quality of the good product gradually decreases and the average and poor quality increases. For PU cellar, the storage time in the cellar <10 days achieves good quality of 85%, average 14% and poor is 1%, if the time increases, the good type gradually decreases from 20 - 30%, average and poor also increase. For foam cellar, the storage time in the cellar <10 days achieves good quality of 60%, average 35% and poor is 5%, if the time increases, good, average and poor all decrease significantly.

 Keywords: Product quality, Nha Trang, Khanh Hoa.