Evaluación de la aplicación “LarvIA” en la fase de pre cría de la camaronera GRABIOCA ubicada en el Golfo de Guayaquil-

Abstract

In Ecuador, shrimp farming represents a very important part of its economy and due to the competition linked to the business there is the need to be more efficient and profitable, so thanks to technological advances that have been developed over the years, it is possible to achieve a more accurate aquaculture, obtaining higher and better productions, higher quality and lower production costs. During the months of November and December 2022, the following research was carried out in a shrimp farm located on Orozco Island, Gulf of Guayaquil. The objective of the work was to evaluate the effectiveness of the LarvIA application in comparison to the traditional methodology, making a daily analysis during the 21 days of pre-farming, the main variables studied were: weight, length, pigmentation and uniformity of the shrimp. The compared data formed a sigmoid curve to which a logistic growth model was adjusted to describe the growth dynamics of the shrimp post larvae of both treatments. According to the results obtained, it was determined that PC3 followed by the LarvIA methodology obtained a higher percentage of uniformity 84 % in shrimp with 21 days of pre-rearing. According to the results obtained in the application, it was determined for day 6 of the study that the pellet size to be supplied in PC3 should be between 900 - 1150 microns, with 45 % protein. Between days 16 and 18 of the study, there was discoloration in the pigmentation of the hepatopancreas determined by the application, so a PCR analysis was performed to rule out any opportunistic pathogen. In terms of weight, there were no significant differences during daily growth until transfer; however, PC 6 had a better coefficient of variation in length.