Effect of dietary chitin on growth performance, nutrient utilization, and metabolic response in rainbow trout (Oncorhynchus mykiss)

Pascon, G.; Cardinaletti, G.; Daniso, E.; Bruni, L.; Messina, M.; Parisi, G.; Tulli, F.

doi:10.1016/j.aqrep.2024.102244

Aquaculture Reports

2024

DOI: 10.1016/j.aqrep.2024.102244

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Effect of dietary chitin on growth performance, nutrient utilization, and metabolic response in rainbow trout (Oncorhynchus mykiss)

G. Pascon,

G. Cardinaletti,

E. Daniso

et al.

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2024

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Cited by 1 publication

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Replacement of Fish Meal with Crustacean Meals in Diets for Long-Snouted Seahorse, Hippocampus guttulatus: Digestibility and Growth Performance

Palma,

Correia,

Andrade

et al. 2024

Fishes

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This study investigated the effect of partially replacing fish meal with krill and copepod meals in inert diets co-fed with shrimp on the growth and nutrient digestibility of long-snout seahorses (Hippocampus guttulatus). A control diet (Diet 1) using raw starch and four experimental diets with similar protein (≈44.8%) and energy (≈15.1 MJ/kg) levels were tested. Diet 2 used fish meal as the sole protein source, while in Diets 3–5, krill and copepod meals replaced 44% of the fish meal. Seahorses fed shrimp + Diets 2–5 showed significantly higher growth rates (p < 0.05) than those fed shrimp + Diet 1, though there were no significant growth differences among Diets 2–5. Digestibility of dry matter (46.1% to 72.2%), lipids (73.3% to 85.5%), crude protein (89.8% to 95.8%), energy (82% to 92.2%), and phosphorus (28.7% to 64.4%) varied with diet, being consistently lower in seahorses fed shrimp + Diet 1. As an agastric species, H. guttulatus did not exhibit impaired digestibility for any of the tested nutrients, minerals, or energy. This study suggests that crustacean meals can effectively substitute fish meal in inert diets for this species, contributing to the sustainability and optimization of captive seahorse husbandry practices.

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Replacement of Fish Meal with Crustacean Meals in Diets for Long-Snouted Seahorse, Hippocampus guttulatus: Digestibility and Growth Performance

Palma,

Correia,

Andrade

et al. 2024

Fishes

View full text Add to dashboard Cite

show abstract

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Effect of dietary chitin on growth performance, nutrient utilization, and metabolic response in rainbow trout (Oncorhynchus mykiss)

Cited by 1 publication

References 88 publications

Replacement of Fish Meal with Crustacean Meals in Diets for Long-Snouted Seahorse, Hippocampus guttulatus: Digestibility and Growth Performance

Replacement of Fish Meal with Crustacean Meals in Diets for Long-Snouted Seahorse, Hippocampus guttulatus: Digestibility and Growth Performance

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