Meagre, Argyrosomus regius (Asso 1801) is an important alternative species
in aquaculture. The in vitro assay
provides practical assessments for the evaluation of feed ingredients. In this
study, the inhibition degrees of feed ingredients (fish meal-FM, fish
hydrolysate-FH, krill meal-KM, soybean meal-SM, wheat gluten-WG, corn gluten-CG
and sunflower meal-SF) on protease activities of meagre larvae were determined.
Larvae were sampled from the first day of opening the mouth (3 days after
hatching-DAH) until the end of the weaning (32 DAH) from the Egemar Hatchery
(Aydın-Turkey). Larvae of the total
length were measured as 3.19 ±0.02-21.61 ±0.22 mm and weights were calculated
as 0.53 ±0.02-118.00 ±1.09 mg at 3 and 32 DAH, respectively. Protease
activities of larvae were the lowest as 5.95 ±0.60 U/mg protein (15 DAH) and
the highest as 211.21 ±12.56 U/mg protein (7 DAH), respectively (P<0.05). The lowest inhibitions
degrees of feed ingredients were observed at 15 DAH except for SF. The use of
FH in the diet formulations of meagre larvae should be paid attention. While CG
and SF are advised, SM does not seem to be suitable.
Primary Language | English |
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Subjects | Hydrobiology |
Journal Section | Research Articles |
Authors | |
Publication Date | April 1, 2019 |
Submission Date | November 5, 2018 |
Published in Issue | Year 2019Volume: 2 Issue: 2 |
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