Use of marine by-product meals in diets for juvenile longfin yellowtailSeriola rivoliana

Abstract

A 60‐day feeding trial to determine the nutritional value of marine by‐product meals in diets for longfin yellowtail Seriola rivoliana juveniles (48.1 ± 0.6 g initial weight) was conducted. Five diets were evaluated: a reference diet (RD; 500 g kg−1 CP, 130 g kg−1 L), containing 500 g kg−1 of fish meal (FM); three experimental diets with 125 g kg−1 of shrimp head (SM), Catarina scallop viscera (CM) or Pen shell viscera (PM) meals; and one diet (SCP) containing 125 g kg−1 of each of the experimental meals, to partially replace FM. Survival was not significantly affected by any treatment. Individual weight gain per day was high for the PM (5.3 ± 0.51 g d−1) and SM (4.7 ± 0.32 g d−1) diets, being significantly higher than the RD (3.5 ± 0.23 g d−1) and the other treatments (<1.2 g d−1). Feed intake was high in PM and SM diets, and very low in SCP and CM diets. Biochemical and haematological parameters were similar among treatments RD, PM and SM, while fish fed CM and SCP exhibited lower levels of total protein, cholesterol, haematocrit and haemoglobin. The results indicate that SM or PM can be used to partially replace FM in diets for yellowtail juveniles.

Modulatory effect ofDebaryomyces hanseniiand oregano essential oil on the humoral immunity of skin mucus in Longfin yellowtailSeriola rivoliana

“…Growth and feed conversion rates were optimal compared to other species and better to the limited data reported about S. rivoliana (Argüello‐Guevara et al., 2018; Benitez‐Hernández et al., 2018; Kissinger et al., 2016), presumably revealing good health and ongrowing conditions. The viability of yeast cells that we observed 1 month after feed manufacturing led us to assume that the same amount mixed in diets was ingested alive by the fish.…”

Effects of intermittent feeding on water quality, skin parasites, feed consumption, and growth performance of juvenile longfin yellowtailSeriola rivoliana(Valenciennes, 1833)

“…The percentage of HCT found in our study corresponds to healthy fish proposed by Del Rio‐Zaragoza, Fajer‐Ávila, Almazán‐Rueda, and Abdo de la Parra (), falling within the range of 33%–71%. However, Benitez‐Hernández et al () found higher levels (53%–61%) in longfin yellowtail fed with marine by‐products. Our work differs from the study of De Pedro et al () who asserts that starvation reduces the percentage of HCT in fishes.…”

“…Significant differences are indicated with superscripted letters (Tukey's test, p < 0.05) within each time period reported for Oreochromis mossambicus(Gabriel, Omoregie, Martin, Kukuri, & Shilombwelwa, 2018) and Acipenser baerii(Morshedi et al, 2017). However,Benitez-Hernández et al (2017) found higher levels (53%-61%) in longfin yellowtail fed with marine by-products.Our work differs from the study of DePedro et al (2005) who asserts that starvation reduces the percentage of HCT in fishes. Our morphological results suggest the absence of malnutrition in longfin yellowtail despite feed restriction.…”

“…Commercial production of S. rivoliana has been developed in Hawaii (USA) reaching 500 tonnes per year and marketed as a sashimi‐grade product (Sims, ). Countries, such as México (Benitez‐Hernández et al, ) and Spain (Roo et al, ), have started commercial cultures of this species in the past decade. However, the aquaculture development of S. rivoliana has been limited due to unreliable spawning success particularly in temperate regions, low hatchery survival, and parasite‐related diseases (Fernández‐Palacios, Schuchardt, Roo, Hernández‐Cruz, & Izquierdo, ; Roo et al, ).…”

Immune and Antioxidant Enzyme Response of Longfin Yellowtail (Seriola rivoliana) Juveniles to Ultra-diluted Substances Derived from Phosphorus, Silica and Pathogenic Vibrio

“…1,2 Studies have been performed in S. rivoliana on spawning and larviculture, digestive ontogeny, osseous development, feeding and management of broodstock, and embryo toxicology, among others. 1,[3][4][5][6][7] Nonetheless, little information is available related to the immune and antioxidant defense system, which could provide fundamental information for improving productivity and developing new cropping technologies. Problems caused by bacteria, viruses and parasites have been reported as limiting factors in culture of several species including Seriola spp.…”