Effects of dietary lipid sources on the growth, gonad development, nutritional and organoleptic quality, transcription of fatty acid synthesis related genes and antioxidant capacity during cold storage in adult sea urchin (Strongylocentrotus intermedius)

Ning, Yanchang; Zhang, Feng; Tang, Lu; Jiang, Song; Ding, Jun; Chang, Yaqing; Zuo, Rantao

doi:10.1016/j.aquaculture.2021.737688

Cited by 5 publications

(23 citation statements)

References 79 publications

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“…This indicated that a high amount of linoleic acid (LA, 18:2n-6) had detrimental effects on the growth performance of sea urchins, just as observed in most marine carnivorous fish species (Zuo et al, 2015). The GSI of female S. intermedius fed kelp was significantly lower than those fed formulated feeds, which was consistent with the findings of a variety of previous studies (Ning et al, 2022). Although n-3 LC-PUFA is essential for normal gonad development, results of this study and some previous studies showed that sea urchins seem to have a low n-3 LC-PUFA requirement for sustaining normal gonad development (Lv et al, 2020).…”

Section: Discussionsupporting

confidence: 92%

“…Li et al (2020) reported that the WGR of juvenile S. intermedius fed SO was lower than those fed LO and FO. In a recent study, we also found that the WGR of adult S. intermedius fed SO was lower than those fed PO, CO, and FO (Ning et al, 2022). This indicated that a high amount of linoleic acid (LA, 18:2n-6) had detrimental effects on the growth performance of sea urchins, just as observed in most marine carnivorous fish species (Zuo et al, 2015).…”

Section: Discussionmentioning

confidence: 54%

“…The gonad slices were made by following the method of Ning et al (2022). Briefly, the Bouin's reagent fixed gonad was dehydrated by sinking them into a graded ethanol series (75%-100%) before they were embedded in paraffin.…”

Section: Gonadal Histologymentioning

confidence: 99%

“…Thus, different feed formulation should be designed for adult sea urchins to acquire market acceptance or reproductive success (Heflin et al, 2012;Brink-Hull et al, 2022). In a recent study, it was found that PO and CO showed comparable effects to FO for S. intermedius from the perspective of growth performance and gonad market acceptance (Ning et al, 2022). However, to the best of our knowledge, no information is available about the optimal lipid sources for achieving the best reproductive performance of S. intermedius.…”

Section: Introductionmentioning

confidence: 99%

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Effects of Dietary Lipid Sources on the Growth, Gonad Development, Fatty Acid Composition and Spawning Performance of Broodstock, and Early Larvae Quality of Sea Urchin (Strongylocentrotus intermedius)

Zuo

Ning

et al. 2022

Front. Mar. Sci.

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This study was carried out to investigate the effects of five formulated feeds with different lipid sources (colza oil (CO), fish oil (FO), linseed oil (LO), soybean oil (SO), or palm oil (PO)) and kelp (Laminaria japonica) on the growth, reproductive performance of broodstock, and early larvae quality of sea urchin (Strongylocentrotus intermedius). The experimental diets were randomly allocated to a total of 48 (eight urchins per experimental group) individually cultured S. intermedius(initial weight 90.51 ± 0.82g) and the feeding period lasted for 12 weeks. The results showed that the weight gain rate of female sea urchins fed kelp was significantly higher than those fed formulated feeds while the gonadosomatic index of spawned female sea urchins fed kelp was significantly lower than those fed formulated feeds.S. intermedius broodstock fed FO showed the largest egg diameter and fecundity, which could be due to the abundant n-3 LC-PUFA deposited in the gonads of this group. Sea urchins fed SO showed the lowest fecundity and hatching rate, and the highest inflammation level. Sea urchins fed CO showed the highest content of oleic acid in the gonads and eggs, but the lowest fertilization rate. The highest hatching rate was observed in the kelp treatment, which was comparable to that in the LO and PO but was significantly higher than that in CO, FO, and SO. Before mouth opening, all prismatic larvae showed no significant differences in survival during the first 2 days post hatchery (DPH). At the 3 DPH, the survival of S. intermedius larvae was highest in the FO group, followed by those in the PO group, with the lowest survival observed in the kelp group. Thus, FO was accepted as the most ideal lipid source based on growth, reproductive performance, and early larval quality. These results could contribute to adopting an efficient feeding strategy to promote the reproductive performance and offspring quality by choosing the optimal lipid source for S. intermedius broodstock.

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Section: Discussionsupporting

confidence: 92%

Section: Discussionmentioning

confidence: 54%

Section: Gonadal Histologymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effects of Dietary Lipid Sources on the Growth, Gonad Development, Fatty Acid Composition and Spawning Performance of Broodstock, and Early Larvae Quality of Sea Urchin (Strongylocentrotus intermedius)

Zuo

Ning

et al. 2022

Front. Mar. Sci.

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“…Since then, a series of studies was conducted on this species, including larval and juvenile production, farming technology, feed manufacture, and disease prevention and control [4][5][6][7][8]. Nowadays, S. intermedius has become one of the most important farming species, especially in the coastal areas of northern China [9,10]. Sea urchin seeds are the foundation of massive culture.…”

Section: Introductionmentioning

confidence: 99%

An Investigation on the Effects of Dietary Vitamin E on Juvenile Sea Urchin (Strongylocentrotus intermedius): Growth, Intestinal Microbiota, Immune Response, and Related Gene Expression

Li,

Gou,

Gong

et al. 2023

Biology

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A 90 d feeding experiment was conducted to investigate the effects of vitamin E (VE) on growth, intestinal microbiota, immune response, and related gene expression of juvenile sea urchin (Strongylocentrotus intermedius). Six dry feeds were made to contain graded levels of VE (78, 105, 152, 235, 302, and 390 mg/kg); these were named E78, E105, E152, E235, E302, and E390, respectively. Dry feed E50 and fresh kelp (HD) were used as the control diets. There were six replicates of cages in each dietary group, and each cage held 20 sea urchins with an initial body weight of approximately 1.50 g. Results exhibited that weight gain rate and gonadosomatic index (GSI) of the sea urchins were not significantly affected by dietary VE ranging from 78 to 390 mg/kg. Sea urchins in the dry feed groups showed poorer growth performance, but significantly higher GSI than those in the fresh kelp groups. The pepsin and lipase activities were not significantly promoted by low or moderate VE, but were inhibited by a high level of VE (302–390 mg/kg), while amylase and cellulase activities were significantly increased by low or moderate VE, with the highest values observed in the E105 and E235 groups, respectively. VE addition at a low dosage (105–152 mg/kg) showed inhibitory effects on immune and antioxidant enzyme activities and expression of inflammation-related genes, but showed no beneficial effects at moderate or high dosage (235–390 mg/kg), while a moderate or relatively higher level of VE (235–302 mg/kg) significantly increased the expression of several immune-related genes. The relative abundance of Proteobacteria, Actinobacteria, Ruegeria, and Maliponia in the intestine of the sea urchins increased with the increase in VE in the dry feeds. On the contrary, the relative abundance of the Firmicutes, Bacteroidetes, Escherichia-Shigella, Bacteroides, and Clostridium sensu stricto 1 gradually decreased as VE content increased. These results indicated that a moderate level of VE (172.5–262.4) can achieve ideal digestive enzyme activities and growth performance, but a relatively higher level of VE (235–302 mg/kg) was beneficial for maintaining the immune and antioxidant capacity of juvenile S. intermedius by regulating the expression of inflammation- and immune-related genes and abundance of some bacteria to a healthy state.

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Effects of dietary lipid sources on the growth, gonad development, nutritional and organoleptic quality, transcription of fatty acid synthesis related genes and antioxidant capacity during cold storage in adult sea urchin (Strongylocentrotus intermedius)

Cited by 5 publications

References 79 publications

Effects of Dietary Lipid Sources on the Growth, Gonad Development, Fatty Acid Composition and Spawning Performance of Broodstock, and Early Larvae Quality of Sea Urchin (Strongylocentrotus intermedius)

Effects of Dietary Lipid Sources on the Growth, Gonad Development, Fatty Acid Composition and Spawning Performance of Broodstock, and Early Larvae Quality of Sea Urchin (Strongylocentrotus intermedius)

An Investigation on the Effects of Dietary Vitamin E on Juvenile Sea Urchin (Strongylocentrotus intermedius): Growth, Intestinal Microbiota, Immune Response, and Related Gene Expression

The culture of the tropical sea urchin Salmacis sphaeroides: A new candidate for aquaculture in South China

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