{"title":"Effects of Replacing Fishmeal with Soybean Products in Fish and Crustaceans Performance","authors":"W. Gyan, S. Ayiku, Qi‐hui Yang","doi":"10.35248/2155-9546.19.10.573","DOIUrl":"https://doi.org/10.35248/2155-9546.19.10.573","url":null,"abstract":"Fish meal (FM) is a principal dietary protein source in aquafeed. The rapid development of aquaculture resulted in high demand and a shortage of (FM) supply. The reason mentioned above has led to a search for an alternative protein sources as (FM) replacement in aquafeeds. Amongst plant protein ingredients, soybean meal (SB) is suggested as the most nutritive plant protein source but some contains high concentration of anti-nutritional factors. Among most soybean products compared with FM, soybean protein concentrate (SPC) is most suitable to replace fishmeal in aquafeed because of its high protein content and better amino acid profile than other soybean products such as soybean meal (SBM). Moreover, more SPC can be used to fully or partially replace FM as compared to SBM without adverse effects on growth performance and health condition in fish and crustaceans. This review reveals that SPC has positive effect on fish and crustaceans performance, gene expression and pathways. This information will help reduce the use of fishmeal by replacing it with SPC in aquafeed and also help to improve growth and health of fish and crustaceans.","PeriodicalId":91728,"journal":{"name":"Journal of aquaculture research & development","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69967687","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Effects of Dietary Zinc Amino Acid Complex and Zinc Sulfate on Growth Performance, Digestive Enzyme Activity and Immune Response in Asian Seabass (Lates calcarifer)","authors":"K. Sansuwan, El-Orapint Jintasataporn, S. Chumkam","doi":"10.35248/2155-9546.19.10.572","DOIUrl":"https://doi.org/10.35248/2155-9546.19.10.572","url":null,"abstract":"Zinc is an essential trace mineral to fish and vital to various biological processes and function. The artificial diets offered to intensively cultivated fish must possess the zinc content required by the animal metabolism for health maintenance and high weight gain. However, essential elements must also be in an available form to be utilized by the organism. Thus, this study was designed to evaluate the effects of different zinc forms, including organic zinc (zinc amino acid complex) and inorganic zinc (zinc sulfate) as feed additives in diets on in vitro protein digestibility, growth performance, feed utilization, digestive enzyme activity, immune response and muscle quality of Asian seabass (Lates calcarifer). The study was assigned in CRD with 3 treatments and 3 replicates. Three groups of fish with mean weight 22.54 ± 0.80 g, were given a basal diet either unsupplemented (control) or supplemented with 50 mg Zn kg-1, as zinc sulfate (ZnSO4) or zinc amino acid complex (ZnAA). The fish were fed experimental diets 3.0% of their body weight per day, twice daily at 08.00 and 16.00 h, for 10 weeks. At the end of the experiment, no significant differences were observed on protein digestibility, survival, growth performance and feed utilization across the three dietary treatments (P>0.05). Fish fed ZnSO4 diets exhibited a significant increase in the specific activities of total protease, pepsin and trypsin compared with ZnAA and the control (P 0.05). The results of the present work allowed us to conclude that there was no difference in the growth between the two zinc sources but ZnAA supplementation exhibited a higher immunity response in Asian seabass.","PeriodicalId":91728,"journal":{"name":"Journal of aquaculture research & development","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69967621","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Selected Essential Amino Acid Enhancement by Bacillus cereus from Solid State Fermentation of Soy Pulp","authors":"Siti Zaharah Imran, L. Wei","doi":"10.4172/2155-9546.1000559","DOIUrl":"https://doi.org/10.4172/2155-9546.1000559","url":null,"abstract":"This research was evaluated the enhancement of essential amino acid (EAA) namely isoleucine, valine, methionine, lysine and tryptophan from soy pulp by using solid state fermentation. The EAAs were selected based on their importance and functions in fish nutrition. In this study, eight bacteria were isolated from solid state fermented soy pulp and screened for isoleucine, valine, methionine, lysine and tryptophan enhancement activities. The potential bacteria strain (S1, S2, S3, S4, S5, S6, S7, and S8) were inoculated into solid state medium (soy pulp, 95.5%; yeast extract, 2%; ammonium sulphate, 2%; 0.5% glucose v/v) and subjected to solid state fermentation for eight days. The finding of screening test of bacteria S1 assay performed the highest total EAA bacteria (42.9 ± 19.50 gL-1). This was followed by S3 (28.2 ± 5.21 gL-1), S7 (23.2 ± 5.29 gL-1), S5 (18.8 ± 1.70 gL-1), S4 (30.0 ± 14.0 gL-1), S8 (19.9 ± 2.38 gL-1), S2 (20.3 ± 4.31 gL-1) and S6 (13.9 ± 0.46 gL-1). Bacteria strain S1 was then identified as Bacillus cereus (MH027625) by Polymerase Chain Reaction (PCR) assay and sequencing. Therefore, the present bacteria isolate B. cereus (MH027625) can be used in enhancing EAA for aquaculture use.","PeriodicalId":91728,"journal":{"name":"Journal of aquaculture research & development","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70300005","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
M. M. A. Allah, A. Ramadan, N. Said, I. Ibrahim, Esam A Abdel karim
{"title":"Effects of Cadmium Chloride and Glyphosate on Antioxidants as Biochemical Biomarkers in Nile Tilapia","authors":"M. M. A. Allah, A. Ramadan, N. Said, I. Ibrahim, Esam A Abdel karim","doi":"10.4172/2155-9546.1000561","DOIUrl":"https://doi.org/10.4172/2155-9546.1000561","url":null,"abstract":"The present study was undertaken to evaluate the effects of cadmium chloride and commercial formulation of glyphosate (Roundup®) on oxidative stress biomarkers in the Nile tilapia, Oreochromis niloticus through three exposure periods with different concentrations of LC50. The 96h-LC50 were determined for CdCl2 (132 mg/l), glyphosate (9.63 mg/l), CdCl2 in mixture (41.30 mg/l) and glyphosate in mixture (2.75 mg/l), respectively. The fish was exposed to these concentrations separately and mixed for 4 days as well as two sublethal concentrations (1/4 and 1/10 LC50) for 8 days and 45 days, respectively. Gills and liver cells of the exposed fish were taken after 4, 8 and 45 days to investigate the variation in activity of lipid peroxidation malonaldehyde (MDA) and antioxidant enzymes of catalase (CAT), superoxide dismutase (SOD), glutathione-S-transferase (GST) and reduced glutathione (GSH). Where, in gills activity levels of SOD decreased after 4, 8 days in all treatments due to high concentration of pollutants but increased after 45 days in glyphosate and cadmium due to low oxidative stress and decreased in mixture. Also, in the liver activity of SOD decreased in glyphosate and cadmium and increased in mixture in periods 4, 8 days but, increased in 45 days in glyphosate and mixture and decreased in cadmium due to its toxicity. The activity of CAT decreased in gills and liver after 4 days but increased after 8, 45 days due to low concentration of contaminants. The activity of GST increased in gills and liver after 4, 8 days but decreased in liver after 45 days. The activity of GSH reduced in gills and liver in all treatments after all periods due to strong oxidative stress. MDA level increased as a marker of oxidative in gills and liver in all treatments after all periods.","PeriodicalId":91728,"journal":{"name":"Journal of aquaculture research & development","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70299569","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
K. Schrader, M. Hamann, J. McChesney, Douglas L. Rodenburg, M. Ibrahim
{"title":"Antibacterial Activities of Metabolites from Platanus occidentalis (American sycamore) against Fish Pathogenic Bacteria","authors":"K. Schrader, M. Hamann, J. McChesney, Douglas L. Rodenburg, M. Ibrahim","doi":"10.4172/2155-9546.1000364","DOIUrl":"https://doi.org/10.4172/2155-9546.1000364","url":null,"abstract":"One approach to the management of common fish diseases in aquaculture is the use of antibiotic-laden feed. However, there are public concerns about the use of antibiotics in agriculture and the potential development of antibiotic resistant bacteria. Therefore, the discovery of other environmentally safe natural compounds as alternatives to antibiotics would benefit the aquaculture industries. Four natural compounds, commonly called platanosides, [kaempferol 3-O-α-L-(2″,3″-di-E-p-coumaroyl)rhamnoside (1), kaempferol 3-O-α-L-(2″-E-p-coumaroyl-3″-Z-p-coumaroyl)rhamnoside (2), kaempferol 3-O-α-L-(2″-Z-p-coumaroyl-3″-E-p-coumaroyl)rhamnoside (3), and kaempferol 3-O-α-L-(2″,3″-di-Z-p-coumaroyl)rhamnoside (4)] isolated from the leaves of the American sycamore (Platanus occidentalis) tree were evaluated using a rapid bioassay for their antibacterial activities against common fish pathogenic bacteria including Flavobacterium columnare, Edwardsiella ictaluri, Aeromonas hydrophila, and Streptococcus iniae. The four isomers and a mixture of all four isomers were strongly antibacterial against isolates of F. columnare and S. iniae. Against F. columnare ALM-00-173, 3 and 4 showed the strongest antibacterial activities, with 24-h 50% inhibition concentration (IC50) values of 2.13 ± 0.11 and 2.62 ± 0.23 mg/L, respectively. Against S. iniae LA94-426, 4 had the strongest antibacterial activity, with 24-h IC50 of 1.87 ± 0.23 mg/L. Neither a mixture of the isomers nor any of the individual isomers were antibacterial against isolates of E. ictaluri and A. hydrophila at the test concentrations used in the study. Several of the isomers appear promising for the potential management of columnaris disease and streptococcosis in fish.","PeriodicalId":91728,"journal":{"name":"Journal of aquaculture research & development","volume":"6 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2015-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4172/2155-9546.1000364","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70299987","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}