Effects of exogenous multienzyme complex supplementation in diets on growth performance, digestive enzyme activity and non‐specific immunity of the Japanese seabass,<i>Lateolabrax japonicus</i>

Huang, Zhangfan; Li, Zhongbao; Xu, Anle; Zheng, Dengjie; Ye, Youling; Wang, Zhen

doi:10.1111/anu.12991

Cited by 18 publications

(9 citation statements)

References 55 publications

(72 reference statements)

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“…It can also eliminate the anti-nutrient factor in feed, improve digestive function and enhance the immune resistance of aquatic animals. Enzyme preparation has been widely used in the fish feed industry [62,63]. To date, there have been no reports relevant to application of enzyme preparation on E. sinensis.…”

Section: Energy Metabolism and Homeostasis Maintenance After Feeding ...mentioning

confidence: 99%

Transcriptome Analysis of Hepatopancreas Provides Insights into Differential Metabolic Mechanisms of Eriocheir sinensis Feeding on Trash Fish and Formulated Feed

Wang¹,

Meng²,

Ge³

et al. 2022

Front. Biosci. (Landmark Ed)

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Background:The Chinese mitten crab, Eriocheir sinensis (E. sinensis), is a popular crab species in both domestic and foreign markets. Trash fish are essential for E. sinensis breeding, but have caused serious water pollution. The municipal party committee for the main production areas of E. sinensis implemented a ban on feeding on trash fish since 2020. Methods: In this study, we performed a culture experiment of E. sinensis feeding on trash fish and formulated feed, with comparative transcriptome analysis on hepatopancreas of E. sinensis. Results: The results indicate that formulated feed causes no significant difference in growth, survival rate or content of amino acids in the muscles of adult E. sinensis. Formulated feed caused a slight downregulation of pathways involved in amino acid metabolism, development, energy metabolism and homeostasis maintenance. Conclusions: On the whole, formulated feed can serve as an undifferentiated substitution for trash fish. This study provides a theoretical foundation for optimizing research on E. sinensis feed.

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Section: Energy Metabolism and Homeostasis Maintenance After Feeding ...mentioning

confidence: 99%

Transcriptome Analysis of Hepatopancreas Provides Insights into Differential Metabolic Mechanisms of Eriocheir sinensis Feeding on Trash Fish and Formulated Feed

Wang¹,

Meng²,

Ge³

et al. 2022

Front. Biosci. (Landmark Ed)

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“…A diferença no tempo entre os picos de excreção pode ser atribuída ao sinergismo entre enzimas quando adicionadas nas rações como blends ou complexos, pois, segundo Oliveira et al (2007), a adição combinada de enzimas digestivas permite que estas atuem de forma simultânea e complementar possibilitando aumento na disponibilidade de nutrientes. Esta interação pode ser identificada na pesquisa desenvolvida por Huang et al (2020) onde ao avaliarem a eficiência de um complexo enzimático composto por protease, xilanase, glucanase e manase em dietas para robalo japonês, observaram aumento na atividade da enzima lipase.…”

Section: Taxa De Excreção De Amôniaunclassified

Glicose sanguínea e taxa de excreção de amônia como indicadores da atividade de enzimas exógenas em tilápias do Nilo

et al. 2020

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A curva glicêmica e a taxa de excreção de amônia são métodos utilizados para avaliar a variação da glicose e da excreção do composto nitrogenado amônia em função de alterações na quantidade de carboidratos e proteínas, respectivamente, disponíveis nas rações. No entanto, os relatos são escassos quanto a sua utilização em pesquisas relacionadas ao uso de enzimas exógenas na alimentação de peixes. Mediante o exposto, o objetivo do trabalho foi de avaliar os níveis de glicose sanguínea e a taxa de excreção de amônia como indicadores metabólitos da eficiência da atividade de enzimas exógenas em dietas para tilápias do Nilo. Desta forma, foram realizados dois experimentos onde foram testadas a composição e concentração das enzimas fitase, alfa-amilase e protease. Os tratamentos foram compostos por dieta controle (DC), que posteriormente, foi suplementada com um blend 1 contendo 100ppm fitase + 200ppm protease, um blend 2 composto por 100ppm fitase + 400ppm protease, depois o blend 3 contendo 200ppm fitase + 200ppm protease + 133ppm alfa-amilase, e o blend 4 com 200ppm fitase + 400ppm protease + 200ppm alfa-amilase. O pico da glicemia sanguínea das tilápias do Nilo ocorreu nas primeiras 4 horas pós alimentação das tilápias em todos os tratamentos avaliados. As dietas suplementadas com fitase, protease e alfa-amilase promoveram maiores níveis de glicose sanguínea, enquanto, os picos de excreção de amônia ocorreram às 2h, 4h e 8h pós alimentação, o que pode estar relacionado ao aumento da disponibilidade de proteína pela suplementação das dietas com a protease. As concentrações de glicose sanguínea e a taxa de excreção de amônia podem ser indicadores indiretos da eficiência da atividade de enzimas digestivas em tilápias do Nilo.

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“…The multienzyme complex (MEC) is composed of one or several single enzymes as the main component, mixed with other single enzyme preparations, or obtained by the fermentation of one or more microorganisms [4]. It has been reported that supplementation with exogenous enzyme preparations offsets the negative effects of removing antibiotics from animal diets [5].…”

Section: Introductionmentioning

confidence: 99%

Effects of Dietary Multienzyme Complex Supplementation on Growth Performance, Digestive Capacity, Histomorphology, Blood Metabolites and Hepatic Glycometabolism in Snakehead (Channa argus)

Ding

Nie

Yuan

et al. 2022

Animals

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The present study evaluated the impact of dietary multienzyme complex (MEC) supplementation on growth performance, digestive enzyme activity, histomorphology, serum metabolism and hepatopancreas glycometabolism in snakeheads (Channa argus). A total of 600 fish (initial weight, 69.70 ± 0.30 g) were randomly divided into four groups. Four diets were formulated: (1) control (basic diet); (2) E1 (400 U kg−1 amylase, 150 U kg−1 acid protease, 1900 U kg−1 neutral protease and basic diet); (3) E2 (800 U kg−1 amylase, 300 U kg−1 acid protease, 3800 U kg−1 neutral protease and basic diet); and (4) E3 (1200 U kg−1 amylase, 450 U kg−1 acid protease, 5700 U kg−1 neutral protease and basic diet). The results show that the E2 group increased the specific growth rate, weight gain rate and the final body weight, as well as decreasing the blood urea nitrogen, alanine aminotransferase and triglyceride. The mRNA levels and activities of digestive enzymes and key glucose metabolism enzymes in the hepatopancreas were enhanced in snakeheads fed the MEC. Meanwhile, moderate MEC diet (E2 groups) supplementation improved digestive tract morphology, increased the glycogen in the hepatopancreas and the lipids in the dorsal muscle. Moreover, plasma metabolomics revealed differential metabolites mainly involved in amino acid metabolism. These findings suggest that dietary supplementation with the MEC improved growth performance, digestive tract morphology, gene expression and the activity of digestive enzymes, enhanced the glycolysis-gluconeogenesis and amino acid metabolism of snakeheads, and the optimal composition of the MEC was group E2.

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Effects of exogenous multienzyme complex supplementation in diets on growth performance, digestive enzyme activity and non‐specific immunity of the Japanese seabass,Lateolabrax japonicus

Cited by 18 publications

References 55 publications

Transcriptome Analysis of Hepatopancreas Provides Insights into Differential Metabolic Mechanisms of Eriocheir sinensis Feeding on Trash Fish and Formulated Feed

Transcriptome Analysis of Hepatopancreas Provides Insights into Differential Metabolic Mechanisms of Eriocheir sinensis Feeding on Trash Fish and Formulated Feed

Glicose sanguínea e taxa de excreção de amônia como indicadores da atividade de enzimas exógenas em tilápias do Nilo

Effects of Dietary Multienzyme Complex Supplementation on Growth Performance, Digestive Capacity, Histomorphology, Blood Metabolites and Hepatic Glycometabolism in Snakehead (Channa argus)

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