L. F. Montenegro, P. T. Garcia, A. Descalzo, C. Pérez
{"title":"Lolium multiflorum (ryegrass) diet modifies the productive response and enhances the meat of grass carp (Ctenopharyngodon idella Val.) with omega 3 fatty acid beneficial to human health","authors":"L. F. Montenegro, P. T. Garcia, A. Descalzo, C. Pérez","doi":"10.1080/10454438.2022.2044957","DOIUrl":"https://doi.org/10.1080/10454438.2022.2044957","url":null,"abstract":"ABSTRACT Ctenopharyngodon idella (grass carp) is one of the most widely produced herbivorous species worldwide. However, forage feeding is not well studied in this species. This work aimed to evaluate the effect of feeding a diet based on Lolium multiflorum (ryegrass) on the growth performance and fatty acid composition in the meat of juvenile C. idella. For this purpose, juveniles were fed two different diets for 120 days: i) grains and their by-products (GD) and ii) Lolium multiflorum (PD). At 60 and 120 days of feeding, the weight gain, specific growth rate, feed conversion rate, protein efficiency, viscerosomatic index and condition factor were determined. The fatty acid profile and lipid nutritional indices of the meat were measured at 120 days. The GD group exhibited higher weight gain, specific growth rate and condition factor than the PD group. The GD group also had a higher conversion rate at the expense of greater fat content and elevated viscerosomatic index. The greater viscera development may explain the higher weight gain in the GD group. Healthy fatty acids, such as Alpha-linolenic, eicosapentaenoic, docosapentaenoic and docosahexaenoic fatty acids, were more elevated in the PD group while linoleic fatty acid (LA) was lower. Hence, LA induced a decrease in the n-6/n-3 ratio. In addition, hypercholesterolemic and atherogenetic saturated fatty acids were lower in the PD. This variation reduced the atherogenic, thrombogenicity and peroxidability indices. Therefore, better nutritional quality in the meat compensated for the lower growth of the fish on the PD.","PeriodicalId":15031,"journal":{"name":"Journal of Applied Aquaculture","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2022-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48409620","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}
Aoi Koga, Shinsuke Takiguchi, Yusaku Tani, K. Ozaki, T. Maki, Hiroshi Okuhata, Satoshi Tanaka, S. Hayashi, Shinjiro Yamamoto, Hitoshi Miyasaka
{"title":"Comparison of the probiotic effects of freshwater and marine photosynthetic bacteria in kuruma shrimp (Marsupenaeus japonicus) culture","authors":"Aoi Koga, Shinsuke Takiguchi, Yusaku Tani, K. Ozaki, T. Maki, Hiroshi Okuhata, Satoshi Tanaka, S. Hayashi, Shinjiro Yamamoto, Hitoshi Miyasaka","doi":"10.1080/10454438.2022.2044958","DOIUrl":"https://doi.org/10.1080/10454438.2022.2044958","url":null,"abstract":"ABSTRACT In a field study, the probiotic effects of a freshwater purple nonsulfur photosynthetic bacterium (PNSB), Rhodobacter sphaeroides, and a marine PNSB, Rhodovulum sulfidophilum, on kuruma shrimp (Marsupenaeus japonicus) were compared by using two commercially operating shrimp ponds. Shrimp were fed with feed containing 0.01% fresh weight (106 cfu/g feed) of PNSB cells for 152 d. The marine PNSB showed a better performance than the freshwater PNSB in average body weight at harvest time, survival rate (P < 0.001 by Fisher’s exact test), and feed conversion rate. The effects of freshwater and marine PNSB on shrimp gene expression were also compared by next-generation sequencing and quantitative RT-PCR. Both freshwater and marine PNSB promoted the expression of several genes related to the innate immune system, including NADPH oxidase, superoxide dismutase, lysozyme, antimicrobial peptides, and lectins, and the promotive effect of marine PNSB was stronger than that of freshwater PNSB. The cost of PNSB was calculated to be US$ 0.003–0.005 per kg feed; thus, marine PNSB is a cost-effective and feasible probiotic for shrimp aquaculture.","PeriodicalId":15031,"journal":{"name":"Journal of Applied Aquaculture","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2022-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47860772","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}
Z. Bouraoui, A. Amri, J. Jebali, T. Gharred, H. Guerbèj
{"title":"Effects of dietary lipid reduction on lipid composition, fatty acid profile, plasma lipoproteins and antioxidant status in gilthead seabream (Sparus aurata)","authors":"Z. Bouraoui, A. Amri, J. Jebali, T. Gharred, H. Guerbèj","doi":"10.1080/10454438.2022.2037488","DOIUrl":"https://doi.org/10.1080/10454438.2022.2037488","url":null,"abstract":"ABSTRACT In the aquaculture industry, the transfer of lipids from the diet to fish to consumer is of great importance. Special attention is being given by researchers, feed manufactures and farmers to optimize the use of feeds to provide efficient production and the best use of dietary resources in the growth of healthy and nutritious aquaculture species. In this sense, this study was conducted to investigate the effects of dietary lipid reduction in seabream (Sparus aurata) and to assess whether reducing dietary lipid level could improve the quality of the fish without impairing their welfare. Two diets were formulated containing 20% (control) and 10% (hypolidimic) lipid levels. Fish were fed the formulated diets for nine weeks and sampling was conducted after three, six and nine weeks in order to follow the trend of the different parameters studied according to the rearing period. The results showed that the decreased dietary lipid did not significantly affect fish growth level. The total lipid content, diminished significantly by 11% and 8% after six and nine weeks, respectively, in fish fed on the lower lipid diet compared with fish fed the higher lipid level. Plasma cholesterol (CHOL) and low-density lipoprotein (LDL) were significantly reduced only after nine weeks. The total saturated fatty acid (SFA), total monounsaturated fatty acid (MUFA) and total polyunsaturated fatty acid (PUFA) levels were significantly reduced after six and nine weeks. The oxidative state, as a biomarker welfare was investigated and the results show that catalase (CAT) and superoxide dismutase (SOD) activities and sulfhydryl proteins (PSH) and thiobarbituric acid reactive substances (TBARS) levels were not affected significantly during the study. It may be concluded that, under the experimental conditions, the decrease of dietary lipid levels from 20% to 10% could improve the fish quality without impairing fish welfare.","PeriodicalId":15031,"journal":{"name":"Journal of Applied Aquaculture","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2022-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43598099","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":"Potential of Safmannan as a feed additive for juvenile African catfish (Clarias gariepinus): Growth, feed utilization efficiency, serum lysozyme activity, and total viable bacterial count in the gut","authors":"C. Teoh, E-Von Loo","doi":"10.1080/10454438.2022.2034702","DOIUrl":"https://doi.org/10.1080/10454438.2022.2034702","url":null,"abstract":"ABSTRACT A 45-day feeding trial was conducted to study the effects of Safmannan as a feed additive for African catfish (Clarias gariepinus) fingerlings. A total of 270 catfish fingerlings were randomly distributed into nine experimental aquaria. Three complete diets were used in this study: Diet 1, a premium catfish feed in the market (feed type A); commercial catfish feed (feed type B) containing no added Safmannan (Diet 2), and 800 ppm of Safmannan (Diet 3). The results showed that fish growth was not significantly (P > 0.05) affected by diets. The feed conversion ratio of catfish fed with Diet 1 was not significantly different (P > 0.05) from catfish fed with Diet 3, reflecting the competitiveness of Safmannan-supplemented feed to the control feed. Interestingly, Safmannan supplementation significantly lowered (P > 0.05) the colony forming unit count and increased serum lysozyme activity. In conclusion, Safmannan could be used as an immunostimulant for catfish farming.","PeriodicalId":15031,"journal":{"name":"Journal of Applied Aquaculture","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2022-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44610915","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}
D. Divya, G. Beulah, K. Govinda Rao, M. Sravya, G. Simhachalam, M. Sai Krishna, N. S. Sampath Kumar
{"title":"Bioactivity of Excoecaria agallocha leaf extract against Pseudomonas aeruginosa infection in Labeo rohita","authors":"D. Divya, G. Beulah, K. Govinda Rao, M. Sravya, G. Simhachalam, M. Sai Krishna, N. S. Sampath Kumar","doi":"10.1080/10454438.2022.2029792","DOIUrl":"https://doi.org/10.1080/10454438.2022.2029792","url":null,"abstract":"ABSTRACT As a natural remedy to combat bacterial diseases that arise during intensive farming practices in aquaculture, extracts of milky mangrove (Excoecaria agallocha) leaves were prepared using acetone, diethyl ether, petroleum ether, and water. Among these, petroleum ether extract has shown the highest bactericidal and antioxidant potency. This extract was purified using column chromatography and preparative TLC and further characterized using mass spectroscopy (MS). The results from MS confirmed the presence of 4-methylumbelliferone, pinellic acid, 1,2,9,10-tetramethoxy-6-methyl-5,6,6a,7-tetrahydro-4 H-dibenzo[de,g]quinolin-3-yl) methanol, and 10-hydroxy-camptothecin, which have antimicrobial and anti-inflammatory potential. Moreover, the efficiency of the extract was assessed by conducting in vivo studies on P. aeruginosa-infected Labeo rohita fingerlings. Among the five groups considered under study, Groups 4 and 5, which were treated with crude and purified extracts, recovered with 88% and 100% survival rates and also showed elevated levels of antioxidant (CAT and SOD) enzymes in the liver after the experimental period. Thus, the present investigation substantiates E. agallocha extract as an alternative medicine for existing drugs to treat bacterial infections in fishes owing to its antibacterial and antioxidant activities.","PeriodicalId":15031,"journal":{"name":"Journal of Applied Aquaculture","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2022-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41389346","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}
G. Perera, R. Bhujel, K. Salin, L. T. Nguyen, Amonrat Sermwatanakul, Ooi Ei Lin
{"title":"Effect of the varying inclusion levels of the egg yolk powder on growth, stress tolerance, and pigmentation of Guppy (Poecilia reticulata)","authors":"G. Perera, R. Bhujel, K. Salin, L. T. Nguyen, Amonrat Sermwatanakul, Ooi Ei Lin","doi":"10.1080/10454438.2022.2027835","DOIUrl":"https://doi.org/10.1080/10454438.2022.2027835","url":null,"abstract":"ABSTRACT The newly hatched nauplii of Artemia is extensively used as a live feed for ornamental fish hatchlings; however, its high cost and unbalanced nutrients necessitate exploring sustainable alternatives. An experiment was conducted to evaluate the effects of four formulated diets of 0%,5%, 10%, and 20% inclusion levels of egg yolk powder and other ingredients (fish meal, soybean meal, rice polish, corn) during the nursery stage of Guppy (Poecilia reticulata) compared to Artemia salina as a control. Results showed that survival did not differ (P > 0.05) among the diets. Weight gain, daily weight gain, and specific growth rate of the fry fed with 10% egg yolk-included diet containing 49.6% fish meal and 18.8% soybean meal were significantly higher (P < 0.05) than those of the other test diets and the A. salina. All the diets showed higher stress indexes (P < 0.05) than the control; the test diets did not affect pigmentation.","PeriodicalId":15031,"journal":{"name":"Journal of Applied Aquaculture","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2022-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43855807","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. Mirbakhsh, B. Ghaednia, M. Zorriehzahra, F. Esmaeili, C. Faggio
{"title":"Dietary mixed and sprayed probiotic improves growth performance and digestive enzymes of juvenile whiteleg shrimp (Litopenaeus vannamei, Boone, 1931)","authors":"M. Mirbakhsh, B. Ghaednia, M. Zorriehzahra, F. Esmaeili, C. Faggio","doi":"10.1080/10454438.2022.2032528","DOIUrl":"https://doi.org/10.1080/10454438.2022.2032528","url":null,"abstract":"ABSTRACT This study investigated the effects of dietary mixed and sprayed of Bacillus subtilis subsp. inaquosorum IS02 (B.s.i. IS02) on growth performance and digestive enzyme activity of whiteleg shrimp. Three different dosages of B.s.i. IS02 were applied via two application methods: mixed with (TM) and sprayed on (TS) feed containing 108 (TM1 and TS1), 107 (TM2 and TS2), 106 (TM3 and TS3) CFU Kg−1. Compared to control groups, growth performance was significantly higher in treated shrimp. There was a significant difference in survival rate between TM1 (94.44 ± 1.57%) and TM2 (87.78 ± 1.92%) compared to the other diets. Furthermore, the activity of digestive enzymes was significantly higher in TS1. Overall, it can be concluded that spraying B.s.i. IS02 at the dosage of 107 or 108 CFU kg−1 on feed can be a useful method in the farm; also, mixing at the dose of 108 CFU kg−1 may prove effective in feed factories.","PeriodicalId":15031,"journal":{"name":"Journal of Applied Aquaculture","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2022-01-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41949397","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":"Freshwater mussel (Lamelliedens marginalis) to reduce the lead (Pb) bioaccumulation in aquaculture of stinging catfish, Heteropneustes fossilis","authors":"M. Hussain, M. A. Hossain, M. Begum, N. C. Roy","doi":"10.1080/10454438.2021.2010630","DOIUrl":"https://doi.org/10.1080/10454438.2021.2010630","url":null,"abstract":"ABSTRACT The freshwater mussel (Lamellidens marginalis) was employed with a 28-day aquarium rearing of stinging catfish (Heteropneustes fossilis) exposed to a sublethal concentration (0.75 mg/l) of Pb(NO3)2 to evaluate the growth, Pb bioaccumulation, and associated liver histopathology in fish. Three treatments (T2, T3, and T4) and a control (T1) were assigned with 20 fish and 5, 20, 40, and 0 numbers of mussel each. The specific growth rate, percentage of weight, and length gain showed a larger increase of Pb in T3 and T4 than in the control and T2. After 28 days, the highest amount of muscular and hepatic Pb was recorded as 2.43 ± 0.01 mg/L and 7.79 ± 0.8 mg/L respectively in the control group (T1); the lowest amount was recorded in T4 as 0.46 ± 0.07 mg/L and 4.41 ± 0.58 mg/L respectively. Liver histopathology exhibited vacuolization, raptured hepatocytes, blood congestion, necrosis, and fat droplets accumulation in different intensities. The control group manifested severe pathology; the T4 treatment exhibited comparatively low signs.","PeriodicalId":15031,"journal":{"name":"Journal of Applied Aquaculture","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2022-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45346917","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}
Mursalin Khan, A. Mortuza, E. Blumenthal, A. Mustafa
{"title":"Role of elderberry (Sambucus nigra) on the modulation of stress and immune response of Nile tilapia, Oreochromis niloticus","authors":"Mursalin Khan, A. Mortuza, E. Blumenthal, A. Mustafa","doi":"10.1080/10454438.2022.2026269","DOIUrl":"https://doi.org/10.1080/10454438.2022.2026269","url":null,"abstract":"ABSTRACT We assessed the role of elderberry extract as a nutraceutical in Nile tilapia to modulate their stress and immune responses under density stress. In the experiment, we maintained tilapia at low (5 g/L) and high population density (120 g/L). We fed half of the low and high-density fish with commercial feed, and the other half, with membrane-separated 13% anthocyanin standardized elderberry extract with maltodextrin excipient, incorporated into commercial feed. We assessed plasma cortisol, blood glucose, IL-2, lysozyme activity, and spleen cell numbers for acute and chronic stress. Among them, blood glucose levels indicated the stress-modulating capability of elderberry in both acute and chronic stress conditions. Plasma cortisol concentrations also demonstrated the potential of elderberry as a stress-modulating agent in chronic stress. Based on our findings, elderberry could potentially be used as a nutraceutical to modulate stress and immune response in vertebrates.","PeriodicalId":15031,"journal":{"name":"Journal of Applied Aquaculture","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2022-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47074884","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}
H. Ho, Chung-Lun Lu, P. Hsieh, Ching-Wei Chen, Shih‐Hung Hsieh, Y. Kuo, Cheng-Ruei Liu, Zun-Jie Syu, J. Chen, John Han You Lin
{"title":"Lactic acid bacteria metabolites in fish feed additives inhibit potential aquatic and food safety pathogens growth, and improve feed conversion","authors":"H. Ho, Chung-Lun Lu, P. Hsieh, Ching-Wei Chen, Shih‐Hung Hsieh, Y. Kuo, Cheng-Ruei Liu, Zun-Jie Syu, J. Chen, John Han You Lin","doi":"10.1080/10454438.2021.2021343","DOIUrl":"https://doi.org/10.1080/10454438.2021.2021343","url":null,"abstract":"ABSTRACT The fermented broth of lactic acid bacteria (LFB)was the side product while lactic acid bacteria produced; however, it was abundant of antimicrobial activity. That might be a good candidate for feed additive in aquaculture. In this study, the fermented broth of Lactobacillus paracasei GL-156, the most antibacterial activity, was further evaluated the safety, growth performance gut microbiota. Common carp consumed the feed in dose of 1000 ppm LFB, the survival was no significant different with control group, but the growth performance was significant increased. In the intestine microbiota analysis, the treatment fish shown the decrease of vibrio, but no different of total bacterial count. These results demonstrate the LFB from GL-156 in enhancing the growth performance, inhibiting the growth of pathogenic bacteria, and promoting the growth of probiotic organisms. Compare with live probiotics currently used in aquaculture, using LFB will achieved beneficial effects equally, while providing superior tolerance to manufacturing processes, and in the lower cost.","PeriodicalId":15031,"journal":{"name":"Journal of Applied Aquaculture","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2022-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46408751","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}