Effects of enzymatically hydrolyzed fish by-products in diet of juvenile rainbow trout (Oncorhynchus mykiss)

Bae, Jong Myon; Azad, Abul Kalam; Won, Seonghun; Hamidoghli, Ali; Seong, Minji; Bai, Sungchul C.

doi:10.1186/s41240-019-0117-4

Cited by 17 publications

(8 citation statements)

References 41 publications

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“…Better digestive enzymatic activities were found in the ECP1 group which has the better growth WGR and PER. Similar results were observed in juvenile rainbow trout (Oncorhynchus mykiss) [26], Pacific white shrimp [27], European seabass (Dicentrarchus labrax) [28], and tilapia (Oreochromis niloticus) [29] fed enzymatic fish by-products, feather-enzymatic hydrolysates, enzymatically hydrolysed aquaculture by-products, and enzymatic poultry by-products, respectively. Poultry and fish by-products have been considered suitable ingredients in the diet of aquatic animals due to their high nutritional characteristics [30].…”

Section: Discussionsupporting

confidence: 78%

“…VSI, HSI, and CF are good representatives of general wellbeing, health, and feed quality in aquatic organisms [34]. Like juvenile rainbow trout (Oncorhynchus mykiss) and genetically improved tilapia fed enzymatic fish by-product and enzymatic chicken liver, respectively [26,29], there was no significant difference observed in VSI, HSI, and CF between the groups in this study. Dietary and environmental factors may have contributed to the variations in whole-body composition [31,35].…”

Section: Discussionmentioning

confidence: 61%

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Enzymatic Chicken Pulp Promotes Appetite, Digestive Enzyme Activity, and Growth in Litopenaeus vannamei

et al. 2022

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Enzymatic chicken pulp (ECP) is an animal protein source that has been proven to be of excellent nutritional content and good quality for the majority of aquatic organisms because of its quality protein, small peptides, palatability, vitamins, and minerals. An 8-week nutritional trial was conducted to assess the effects of an ECP-based diet on the growth performance, digestive enzyme activity, and gene mRNA expression of Pacific white shrimp (Litopenaeus vannamei). Fish soluble pulp (FSP) served as the control group while in the experimental groups, and ECPs with three protein contents were used to replace FSP in equal amounts, named ECP1, ECP2, and ECP3, respectively. No significant difference in weight gain rate, specific growth rate, survival rate, or feed conversion ratio was observed (p > 0.05) between the groups. Ash content in the Pacific shrimp’s whole body was significantly higher in the ECP1 and ECP3 groups compared to the other groups (p < 0.05). Intestinal amylase and protease activities were the highest in the ECP1 and ECP2 groups, respectively (p < 0.05). With respect to gene mRNA expression, neuropeptide Y, excitatory amino acid transporter, and fatty acid transport protein 4 were significantly high in the ECP1 group (p < 0.05). In conclusion, these three ECPs have their advantages to replace FSP in shrimp feed, but ECP1 is more effective if the effects of digestive enzyme activity, appetite, and expression of growth-related genes are considered.

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Section: Discussionsupporting

confidence: 78%

Section: Discussionmentioning

confidence: 61%

Enzymatic Chicken Pulp Promotes Appetite, Digestive Enzyme Activity, and Growth in Litopenaeus vannamei

et al. 2022

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“…(2018) found that RBT and myeloperoxidase activity could be influenced by the supplementation of shrimp, tilapia and krill hydrolysates into the low FM diets. On the other hand, the antioxidant indicators like SOD and catalase are involved in the main antioxidant defence system by removing and detoxifying oxygen radicals generated within the cells under normal or stressful conditions (Bae et al., 2019). In our study, GIFT Tilapia fed the hydrolysate‐supplemented diets showed improved antioxidant status with increased SOD and catalase levels, thus paving the way for easy acceptance by consumer.…”

Section: Discussionmentioning

confidence: 99%

Effects of marine hydrolysates in wheat gluten meal‐based diet on the growth, haemato‐biochemical, immunological and antioxidant status of GIFT tilapia reared in floating cages

Kannan

Felix²,

Ahilan

2022

Aquaculture Research

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This study was conducted to evaluate the effects of supplementation of tuna hydrolysate (TH), squid hydrolysate (SH) and mixture of both hydrolysates in wheat gluten meal (WGM)-based diets on the growth, haemato-biochemical, immunological parameters and antioxidant indicators of GIFT tilapia. Experimental fish were fed different diets, namely a control diet containing fishmeal (FM) without WGM and hydrolysate; a WGM diet without FM and hydrolysate (WGM); a WGM diet without FM and 5 g/ kg TH (WGM-TH); a WGM diet without FM and 5 g/kg SH (WGM-SH); and a WGM diet without FM and mixture of 5 g/kg of TH and SH (WGM-Mix). A total of 450 fish (9.83 ± 0.01 g) were fed on the five experimental diets in triplicate groups for 8 weeks.The growth performance and feed utilization indices of the fish were found to be significantly higher in WGM supplemented with TH diet followed by WGM-SH, WGM-Mix and WGM diets. There was no significant impact in blood and serum biochemical parameters among the treatments. The immunological and antioxidant indicators were not significantly different between hydrolysate-supplemented diets; however, they were significantly greater than hydrolysate-unsupplemented diets (control and WGM diets). Based on the results, it is suggested that FM can be replaced by WGM for better growth performance even without the supplementation of hydrolysates, whereas hydrolysates are considered important for better immunological responses and antioxidant status of GIFT tilapia.

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“…Hydrolysis enzyme can eliminate the excess crude fiber content and anti-nutrient compounds (tannins and phytic acid) on bran, wheat, rice plants, and seeds (Dhingra et al, 2012;Raveendran et al, 2018). This particular process is possible to improve the nutritive value of each feed ingredients (Bae et al, 2019). This condition is also expected to have similar effect in I. zollingeriana leaf meal.…”

Section: Introductionmentioning

confidence: 99%

Cellulase hydrolyzed Indigofera zolingeriana leaf utilization as a feed ingredient for gourami fingerling

Jefry

Setiawati

Jusadi

et al. 2021

Jurnal Akuakultur Indonesia

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This study was aimed to evaluate the utilization of hydrolyzed Indigofera zolingeriana by celullase enzyme as the feed ingredient of gourami fish. This study used a completely randomized design which contained three steps, whereas each step contained four treatments and four replications. The first step performed by evaluating the Indigofera leaf meal (ILM) added with cellulase enzyme of 0 g/kg (control), 0.4 g/kg, 0.8 g/kg, and 1.2 g/kg. The second step was the digestibility test of ILM on gourami seeds. The third step was feed evaluation added with ILM as much as 0% (control), 15%, 30%, and 45% against the growth performance on gourami seeds. The gourami seeds used in the second and third steps with a weight of 13.65 ± 0.39 g/seed and 5.95 ± 0.15 g/seed, respectively. The addition of 0.8 g/kg and 1.2 g/kg cellulase enzyme could significantly decrease the crude fiber of ILM with 43.33%, besides having the best value of total, ingredient, protein, lipid, and energy digestibility. The growth performance of gourami seeds given 15% ILM added feed had the best value and insignificantly different from the control feed without ILM addition based on the specific growth rate (SGR), protein retention (PR), and feed efficiency (FE). Keywords: Cellulase, feed, hydrolyze, Indigofera zolingeriana, Osphronemus gouramy. ABSTRAK Penelitian ini dilakukan untuk mengevaluasi pemanfaatan daun Indigofera zolingeriana yang dihidrolisis enzim selulase sebagai bahan baku pada pakan benih ikan gurami. Penelitian ini menggunakan rancangan acak lengkap yang terdiri atas tiga tahap, dimana masing-masing tahap terdiri dari empat perlakuan dan empat ulangan. Pada tahap pertama dilakukan evaluasi tepung daun Indigofera (TDI) yang ditambahkan enzim selulase sebesar 0 g/kg (kontrol), 0.4 g/kg, 0.8 g/kg, dan 1.2 g/kg. Pada tahap kedua dilakukan uji kecernaan bahan TDI pada benih ikan gurami. Pada tahap ketiga dilakukan evaluasi pakan yang ditambahkan TDI sebesar 0% (kontrol), 15%, 30% dan 45% terhadap kinerja pertumbuhan pada benih ikan gurami. Benih ikan gurami yang digunakan pada penilitian tahap kedua dengan bobot 13.65 ± 0.39 g/ekor dan 5.95 ± 0.15 g/ekor. Penambahan enzim selulase pada dosis 0.8 g/kg dan 1.2 g/kg secara signifikan mampu menurunkan serat kasar TDI sebesar 43.33 % dan memberikan nilai terbaik terhadap nilai kecernaan total, kecernaan bahan, kecernaan protein, kecernaan lemak dan kecernaan energi. Kinerja pertumbuhan benih ikan gurami yang diberikan pakan yang ditambahkan TDI sebesar 15% memilki nilai terbaik dan tidak berbeda nyata terhadap pakan kontrol tanpa TDI dari aspek laju pertumbuhan spesifik (LPS), retensi protein (RP) dan efisiensi pakan (EP). Kata kunci: Hidrolisis, Indigofera zolingeriana, Osphronemus gouramy, pakan, selulase.

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Effects of enzymatically hydrolyzed fish by-products in diet of juvenile rainbow trout (Oncorhynchus mykiss)

Cited by 17 publications

References 41 publications

Enzymatic Chicken Pulp Promotes Appetite, Digestive Enzyme Activity, and Growth in Litopenaeus vannamei

Enzymatic Chicken Pulp Promotes Appetite, Digestive Enzyme Activity, and Growth in Litopenaeus vannamei

Effects of marine hydrolysates in wheat gluten meal‐based diet on the growth, haemato‐biochemical, immunological and antioxidant status of GIFT tilapia reared in floating cages

Cellulase hydrolyzed Indigofera zolingeriana leaf utilization as a feed ingredient for gourami fingerling

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