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Attraction and palatability activities in juvenile abalone (Haliotis fulgens): nine ingredients used in artificial diets

1994; Elsevier BV; Volume: 127; Issue: 1 Linguagem: Inglês

10.1016/0044-8486(94)90188-0

1873-5622

Marı́a Teresa Viana, Margarita Cervantes-Trujano, Rafael Solana-Sansores,

Meat and Animal Product Quality

Nine different ingredients (fish acid silage, neutralized fish acid silage, neutralized abalone viscera silage, fish meal, corn meal, fresh and dried Macrocystis pyrifera, gelatin and soybean meal) were used to evaluate the attraction and palatability activity on juvenile of abalone (Haliotis fulgens). Groups of 45 organisms were randomly separated from a batch of 170 and distributed in three aquaria. Twelve-hour observations were performed using a conduct sheet with assigned values. In the first 4 h the attraction activity was evaluated, and at the 12th hour, the palatability was registered. With the data obtained, a statistical analysis was performed, using a χ2-test from the observed frequencies. From the 9 ingredients evaluated, three silages gave a significant change in conduct. The pH was found to be an important factor for attraction and palatability and a logistic model was used to evaluate a possible pH effect on the attraction activity. The silage made from abalone viscera generated a high attraction and palatability activity.