Influence of replacing fish meal with enzymatic hydrolysates of defatted silkworm pupa (<i>Bombyx mori</i>L.) on growth performance, body composition and non-specific immunity of juvenile mirror carp (<i>Cyprinus carpio var</i>. specularis)

Xu, Xinxin; Ji, Hong; Yu, Haibo; Zhou, Jishu

doi:10.1111/are.13603

Cited by 33 publications

(25 citation statements)

References 42 publications

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“… Song et al (2014) demonstrated that fishmeal partially replaced with soy protein hydrolysates has no negative effect on the growth and feed efficiency of Platichthys stellatus . Animal protein hydrolysates as substitute for fishmeal has no negative effect on the growth performance of aquatic animals, which also has been reported by Xu et al (2018) and Cai et al (2015) . The results of Xu et al (2018) indicated that enzymatic hydrolysates of defatted silkworm pupa ( Bombyx mori L.) can be included into the diet to replace 50% fishmeal of Cyprinus carpio var.…”

Section: Discussionsupporting

confidence: 74%

“…Animal protein hydrolysates as substitute for fishmeal has no negative effect on the growth performance of aquatic animals, which also has been reported by Xu et al (2018) and Cai et al (2015) . The results of Xu et al (2018) indicated that enzymatic hydrolysates of defatted silkworm pupa ( Bombyx mori L.) can be included into the diet to replace 50% fishmeal of Cyprinus carpio var. specularis without negative effect on growth.…”

Section: Discussionsupporting

confidence: 74%

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Growth Performance, Digestive Enzymes, and TOR Signaling Pathway of Litopenaeus vannamei Are Not Significantly Affected by Dietary Protein Hydrolysates in Practical Conditions

Shao

Zhao

et al. 2018

Front. Physiol.

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Protein hydrolysates have been widely reported as the protein source of aquatic feed. However, previous studies on protein hydrolysates focused on fish under experimental conditions. In this study, a 6-week feeding trial in a greenhouse was conducted to investigate the effects of partially replacing fishmeal by protein hydrolysates on growth performance, digestive enzymes, and TOR signaling pathway of Litopenaeus vannamei under practical conditions. This involved randomly selecting 72,000 shrimps (initial body weight 2.26 ± 0.02 g) and placing them in groups inside nine concrete tanks (L 5 m × W 5 m × H 1 m) (3 treatments × 3 replicates × 8000 individuals per concrete tank). Two isonitrogenous (430 g kg-1) and isolipidic (80 g kg-1) diets were prepared: fishmeal diet (FM) containing 400g kg-1 fishmeal, and protein hydrolysates diet (PH) in which 15% of the fishmeal was replaced by protein hydrolysates. A commercial diet (CD) was used as reference. The final weight (FW), percent weight gain (PWG), specific growth ratio (SGR), and total weight for each tank (TW) of L. vannamei fed with FM and PH diets were not significantly different (P > 0.05). However, shrimp fed with PH diet had significantly higher FW, PWG, SGR, and TW values than those fed with CD diet (P < 0.05). Trypsin activity was significantly lower in shrimp fed with CD diet, than in shrimp fed with FM and PH diets (P < 0.05). However, trypsin activity of L. vannamei fed with FM and PH diets were not significantly different (P > 0.05). The mRNA expression of tor, s6k, and 4e-bp genes were not significantly affected between FM and PH diets, while tor and s6k expression levels of CD diet were significantly down-regulated. Based on the above data, 15% replacement of fishmeal with protein hydrolysates did not make any difference on shrimps compared with FM group. Therefore, protein hydrolysates can partially replace fishmeal as the protein source of shrimp formula feed in practical conditions.

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Section: Discussionsupporting

confidence: 74%

Section: Discussionsupporting

confidence: 74%

Growth Performance, Digestive Enzymes, and TOR Signaling Pathway of Litopenaeus vannamei Are Not Significantly Affected by Dietary Protein Hydrolysates in Practical Conditions

Shao

Zhao

et al. 2018

Front. Physiol.

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“…Our research showed that BSFP diets not only significantly reduced serum MDA content but also increased CAT activity, which indicated BSFP could improve the antioxidant capacity of juvenile mirror carp. Insects including blowfly ( Lucilia sericata , Meigen) and BSF larvae have the ability to thrive in pathogen‐infested environment, suggesting that insects have antimicrobial potential that could enhance the fish immune ability (Cytryńska, Mak, Zdybickabarabas, Suder, & Jakubowicz, ; Kerridge et al, ; Park & Yoe, ; Xu et al, ). Henry et al () found that T. molitor could improve the antioxidant capacity of European sea bass, maybe because of the immuno‐stimulating and anti‐inflammatory effect of chitin.…”

Section: Discussionmentioning

confidence: 99%

“…Similar results were reported in Jian carp . Although few studies have investigated the effects of dietary insects on the antioxidant capacity of fish species, considering the related research Taufek et al, 2016;Xu, Ji, Yu, & Zhou, 2018), we could speculate that insects inclusion in diet may have an effect on the antioxidant capacity of fish.…”

Section: Introductionmentioning

confidence: 99%

Influence of dietary black soldier fly ( Hermetia illucens Linnaeus) pulp on growth performance, antioxidant capacity and intestinal health of juvenile mirror carp ( Cyprinus carpio var. specularis)

2020

Aquacult Nutr

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This study was conducted to investigate whether dietary supplementation of black soldier fly (Hermetia illucens Linnaeus) pulp (BSFP) affects growth performance, antioxidant capacity and intestinal health of juvenile mirror carp (Cyprinus carpio var. specularis). A total of 270 juvenile mirror carp (13.68 ± 0.02 g) were randomly allotted to five dietary treatments, BSFP0, BSFP25, BSFP50, BSFP75 and BSFP100, in which BSFP was included in the basal diet at 0, 43.7, 87.3, 131 and 174.7 g/kg, respectively. Then, fish were fed to apparent satiation for 8 weeks. Fish growth performance and nutrient utilization were not different among the five groups (p > .05). Increasing BSFP dietary content significantly decreased whole‐body lipid content but increased kidney index (p < .05). The general relative intestine length was significantly higher in the BSFP100 group than the BSFP0 group (p < .05). Increasing BSFP dietary content significantly increased serum catalase activity and decreased malonaldehyde content (p < .05). The intestinal villus height, villus area and muscle layer thickness were significantly lower in the BSFP100 group than the BSFP0 group (p < .05). No significant differences in the activity of intestinal trypsin, lipase and amylase were observed among all groups (p > .05). In conclusion, this study indicated that BSFP at the level below 131 g/kg could be added in diet of juvenile mirror carp without any negative effect on growth performance and intestinal health. Dietary BSFP inclusion at low levels decreased the whole‐body lipid content and increased the antioxidant activity of juvenile mirror carp.

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“…Alanine aminotransferase is an important amino acid transaminase that widely exists in animal mitochondria, and it plays an important role in protein metabolism. In general, due to the detoxification function of the liver, serum transaminase content is very low (Xu et al 2018). Alkaline phosphatase directly participates in the transfer and metabolic processes of phosphate groups and plays a vital role in the nonspecific immune response of organisms (Huang et al 2005).…”

Section: Effect Of Xanthophyll On Serum Biochemical Indicesmentioning

confidence: 99%

Effects of Dietary Xanthophyll Supplementation on Growth Performance, Body Color, Carotenoids, and Blood Chemistry Indices of Chinese Soft‐Shelled Turtle Pelodiscus sinensis

Wang

et al. 2020

N American J Aquac

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A 12-week experiment was conducted to investigate the effects of diets containing 0 (CD), 40 (X1), 80 (X2), and 120 mg/kg (X3) xanthophyll on the growth, body color, and blood chemistry of the Chinese soft-shelled turtle Pelodiscus sinensis. Four hundred and eighty turtles with initial weight of 37.90 AE 0.26 g were randomly stocked equally in 12 cement ponds (4.0 × 5.0 × 0.8 m) to form four groups in triplicate. The turtles were fed one of the four diets (crude protein 48%, crude lipid 6%) twice daily, with the feed amount set at 3% of their total body weight. The results indicated that the supplement of 80 mg/kg xanthophyll in the diet had the most significant effect on growth, feed conversion ratio, and amino acid content in muscle tissue. The yellowness of the carapace and the plastron skin increased with higher xanthophyll levels. Moreover, the final yellowness in the plastron skin was higher than the initial yellowness. The carotenoid content in the liver and carapace was significantly enhanced with increasing xanthophyll levels and showed a significant linear correlation with the dietary xanthophyll supplement levels. The liver carotenoid content in the X2 and X3 groups and carapace skin carotenoid content in the X3 group were markedly higher than were those in turtles that were fed the control diet (P < 0.05). Compared with the control diet, adding xanthophyll significantly increased acid phosphatase activity in serum while obviously lowering the alanine aminotransferase activity. The triglyceride and total cholesterol content decreased with increases in xanthophyll. There were no significant differences in the serum superoxide dismutase and glutathione peroxidase activity in animals that received the xanthophyll-supplemented and control diets. The current study results suggest that the growth performance and skin coloration of Chinese soft-shelled turtle can be improved by including 80-120 mg/kg xanthophyll in the diet.

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Influence of replacing fish meal with enzymatic hydrolysates of defatted silkworm pupa (Bombyx moriL.) on growth performance, body composition and non-specific immunity of juvenile mirror carp (Cyprinus carpio var. specularis)

Cited by 33 publications

References 42 publications

Growth Performance, Digestive Enzymes, and TOR Signaling Pathway of Litopenaeus vannamei Are Not Significantly Affected by Dietary Protein Hydrolysates in Practical Conditions

Growth Performance, Digestive Enzymes, and TOR Signaling Pathway of Litopenaeus vannamei Are Not Significantly Affected by Dietary Protein Hydrolysates in Practical Conditions

Influence of dietary black soldier fly ( Hermetia illucens Linnaeus) pulp on growth performance, antioxidant capacity and intestinal health of juvenile mirror carp ( Cyprinus carpio var. specularis)

Effects of Dietary Xanthophyll Supplementation on Growth Performance, Body Color, Carotenoids, and Blood Chemistry Indices of Chinese Soft‐Shelled Turtle Pelodiscus sinensis

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