Pub Date : 2023-02-01DOI: 10.3389/faquc.2023.1037014
T. Altintzoglou, M. Heide
The aim of this study was to explore consumer acceptance of food products that make use of ingredients from underutilized marine species. As these species are not commonly used as ingredients in food products, a goal of this study was to explore how relevant personality factors influenced the acceptance of such products. This would be achieved by (a) identification of consumer segments based on the personality factors–domain specific innovativeness, food technology neophobia, health involvement, and disgust, (b) description of the main characteristics of these consumer segments, and (c) comparing how these consumer segments responded to information about the potential products, origin species, ingredients, and benefits associated with these ingredients. The method used in this study was a consumer survey (n = 490) that led to a consumer segmentation, followed by a conjoint experiment. The results show that ingredient source was the most important attribute. Yet, as many of the ingredient sources were novel, both for the carrier product and the consumer, the important part was not exposing consumers to the species that functioned as the ingredient source. The younger female consumers of the Safe Player group were most focused on the ingredient source, whereas the older male segment, called Open Minded, found the carrier product more important. The final segment, the Innovator, found all of the attributes of almost equal importance.
{"title":"Identifying consumer openness to new ingredients: A conjoint study on consumer segments in the UK","authors":"T. Altintzoglou, M. Heide","doi":"10.3389/faquc.2023.1037014","DOIUrl":"https://doi.org/10.3389/faquc.2023.1037014","url":null,"abstract":"The aim of this study was to explore consumer acceptance of food products that make use of ingredients from underutilized marine species. As these species are not commonly used as ingredients in food products, a goal of this study was to explore how relevant personality factors influenced the acceptance of such products. This would be achieved by (a) identification of consumer segments based on the personality factors–domain specific innovativeness, food technology neophobia, health involvement, and disgust, (b) description of the main characteristics of these consumer segments, and (c) comparing how these consumer segments responded to information about the potential products, origin species, ingredients, and benefits associated with these ingredients. The method used in this study was a consumer survey (n = 490) that led to a consumer segmentation, followed by a conjoint experiment. The results show that ingredient source was the most important attribute. Yet, as many of the ingredient sources were novel, both for the carrier product and the consumer, the important part was not exposing consumers to the species that functioned as the ingredient source. The younger female consumers of the Safe Player group were most focused on the ingredient source, whereas the older male segment, called Open Minded, found the carrier product more important. The final segment, the Innovator, found all of the attributes of almost equal importance.","PeriodicalId":101308,"journal":{"name":"Frontiers in aquaculture","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88265705","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}
Pub Date : 2023-01-26DOI: 10.3389/faquc.2022.1052097
R. Adam, L. Njogu
Along the aquaculture value chain, what is the status of gender equality and women’s empowerment with a particular emphasis on aquaculture? What can be done to bring about gender equality and women’s empowerment in the aquaculture sector? This article explores these questions through a systematic review of the extant literature on gender and aquaculture using Nigeria as a case study. A total of 78 articles are analyzed based on the reach-benefit-empower-transform framework. The findings show that there is gender inequality within the aquaculture value chain. In most cases, women are mainly concentrated at the nodes of the value chain, which require fewer resources to operate; furthermore, in most cases, women earn less profits compared with their male counterparts. Women’s empowerment is still at the nascent stages, while gender related transformation has yet to take root. We recommend that pro-equality gender policies in aquaculture be created and implemented. This calls for the collection and use of sex-disaggregated data and for work at the grassroots level to ensure that the manner in which women, men, boys and girls are treated and allowed to live and function in the communities they reside engenders development, harmony, gender equality and prosperity. Finally, we recommend that the reach-benefit-empower-transform framework be expanded to facilitate the evaluation of program/project-based studies.
{"title":"A review of gender inequality and women’s empowerment in aquaculture using the reach-benefit-empower-transform framework approach: A case study of Nigeria","authors":"R. Adam, L. Njogu","doi":"10.3389/faquc.2022.1052097","DOIUrl":"https://doi.org/10.3389/faquc.2022.1052097","url":null,"abstract":"Along the aquaculture value chain, what is the status of gender equality and women’s empowerment with a particular emphasis on aquaculture? What can be done to bring about gender equality and women’s empowerment in the aquaculture sector? This article explores these questions through a systematic review of the extant literature on gender and aquaculture using Nigeria as a case study. A total of 78 articles are analyzed based on the reach-benefit-empower-transform framework. The findings show that there is gender inequality within the aquaculture value chain. In most cases, women are mainly concentrated at the nodes of the value chain, which require fewer resources to operate; furthermore, in most cases, women earn less profits compared with their male counterparts. Women’s empowerment is still at the nascent stages, while gender related transformation has yet to take root. We recommend that pro-equality gender policies in aquaculture be created and implemented. This calls for the collection and use of sex-disaggregated data and for work at the grassroots level to ensure that the manner in which women, men, boys and girls are treated and allowed to live and function in the communities they reside engenders development, harmony, gender equality and prosperity. Finally, we recommend that the reach-benefit-empower-transform framework be expanded to facilitate the evaluation of program/project-based studies.","PeriodicalId":101308,"journal":{"name":"Frontiers in aquaculture","volume":"550 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81575890","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}
Pub Date : 2023-01-19DOI: 10.3389/faquc.2023.1088072
M. Chiasson, Michael Kirk, D. Huyben
Introduction Cultured fish species are increasingly exposed to fungi and bacteria in the rearing environment, often causing disease and mortality causing aquaculture producers to rely on the use of chemical therapeutants which may have negative consequences for both human and environmental health. This study investigated the effect of humic acid as a treatment to reduce fungal and bacterial infections to increase survival during the incubation of rainbow trout (Oncorhynchus mykiss) eggs. Methods Humic acid, an aqueous extract of oxidized lignite was added to water entering both stacked tray and jar type incubators at a dosage rate of 0.005 mg/L from fertilization until hatching. Results The water treatment eliminated observable fungus and significantly improved survival until hatching in the treated incubator trays (77.2%) compared to the untreated controls (55.5%) (p ≤ 0.001). Egg survival was not improved in the incubator jars. The humic acid reduced bacterial diversity, but only in the stacked tray incubators and altered bacterial composition of the water after 20 days of treatment. Discussion The treatment increased the bacterial abundance of Burkholderiales, positively associated with healthy fish eggs and decreased the abundance of Flavobacterium and Aeromonas, known fish pathogens. These findings support the topical treatment of humic acid as a potential alternative treatment to prevent fungal infections and reduce mortality during incubation of rainbow trout eggs.
{"title":"Microbial control during the incubation of rainbow trout (Oncorhynchus mykiss) eggs exposed to humic acid","authors":"M. Chiasson, Michael Kirk, D. Huyben","doi":"10.3389/faquc.2023.1088072","DOIUrl":"https://doi.org/10.3389/faquc.2023.1088072","url":null,"abstract":"Introduction Cultured fish species are increasingly exposed to fungi and bacteria in the rearing environment, often causing disease and mortality causing aquaculture producers to rely on the use of chemical therapeutants which may have negative consequences for both human and environmental health. This study investigated the effect of humic acid as a treatment to reduce fungal and bacterial infections to increase survival during the incubation of rainbow trout (Oncorhynchus mykiss) eggs. Methods Humic acid, an aqueous extract of oxidized lignite was added to water entering both stacked tray and jar type incubators at a dosage rate of 0.005 mg/L from fertilization until hatching. Results The water treatment eliminated observable fungus and significantly improved survival until hatching in the treated incubator trays (77.2%) compared to the untreated controls (55.5%) (p ≤ 0.001). Egg survival was not improved in the incubator jars. The humic acid reduced bacterial diversity, but only in the stacked tray incubators and altered bacterial composition of the water after 20 days of treatment. Discussion The treatment increased the bacterial abundance of Burkholderiales, positively associated with healthy fish eggs and decreased the abundance of Flavobacterium and Aeromonas, known fish pathogens. These findings support the topical treatment of humic acid as a potential alternative treatment to prevent fungal infections and reduce mortality during incubation of rainbow trout eggs.","PeriodicalId":101308,"journal":{"name":"Frontiers in aquaculture","volume":"40 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76312297","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}
Pub Date : 2022-12-16DOI: 10.3389/faquc.2022.1060335
M. Hamilton, M. Yeasin, M. Alam, Md. Rayhan Ali, M. Fakhruddin, M. Islam, B. Barman, K. Shikuku, C. Shelley, C. Rossignoli, J. Benzie
Introduction Rohu (Labeo rohita Hamilton) is a globally significant aquaculture species for which genetically improved strains are increasingly available. In 2020, a multiplier population, comprised of highly–ranked generation-three (G3) families from the WorldFish Rohu Genetic Improvement Program, was released to hatcheries in Bangladesh for development into broodstock. Methods To estimate realised genetic gain for harvest weight in the G3-multiplier population, one pond from each of 19 Bangladeshi semi-commercial farms (ten in Jashore and nine in Natore–Rajshahi districts) were stocked with equal numbers of tagged fish from each of three strains. Strains included in the study were the ‘G3-multiplier’ released to hatcheries, a ‘control’ (putatively genetically equivalent to the unimproved base population which was spawned from fish of river origin) and fish sourced from a ‘commercial’ hatchery. Once stocked, fish were managed according to each farmer’s normal practices. Results The G3-multiplier was found to be the most rapidly growing strain. Back-transformed means for harvest weight across farms for the commercial, control and G3-multiplier strains were 594 g, 659 g and 914 g, respectively, in Jashore, and 545 g, 626 g and 845 g in Natore–Rajshahi. Discussion These results equate to realised genetic gains of 38.6% (Jashore) and 34.9% (Natore–Rajshahi) for the G3-multiplier over the control strain and provide evidence that a family-based (i.e. pedigree-based) approach to genetic improvement is able to generate substantial levels of genetic gain in rohu. Furthermore, the clear growth advantages exhibited by the G3-multiplier strain over the control and commercial strains in this study, should encourage more Bangladeshi hatcheries, nurseries and farmers to adopt genetically improved rohu.
{"title":"On-farm performance of genetically-improved rohu (Labeo rohita) in Bangladesh","authors":"M. Hamilton, M. Yeasin, M. Alam, Md. Rayhan Ali, M. Fakhruddin, M. Islam, B. Barman, K. Shikuku, C. Shelley, C. Rossignoli, J. Benzie","doi":"10.3389/faquc.2022.1060335","DOIUrl":"https://doi.org/10.3389/faquc.2022.1060335","url":null,"abstract":"Introduction Rohu (Labeo rohita Hamilton) is a globally significant aquaculture species for which genetically improved strains are increasingly available. In 2020, a multiplier population, comprised of highly–ranked generation-three (G3) families from the WorldFish Rohu Genetic Improvement Program, was released to hatcheries in Bangladesh for development into broodstock. Methods To estimate realised genetic gain for harvest weight in the G3-multiplier population, one pond from each of 19 Bangladeshi semi-commercial farms (ten in Jashore and nine in Natore–Rajshahi districts) were stocked with equal numbers of tagged fish from each of three strains. Strains included in the study were the ‘G3-multiplier’ released to hatcheries, a ‘control’ (putatively genetically equivalent to the unimproved base population which was spawned from fish of river origin) and fish sourced from a ‘commercial’ hatchery. Once stocked, fish were managed according to each farmer’s normal practices. Results The G3-multiplier was found to be the most rapidly growing strain. Back-transformed means for harvest weight across farms for the commercial, control and G3-multiplier strains were 594 g, 659 g and 914 g, respectively, in Jashore, and 545 g, 626 g and 845 g in Natore–Rajshahi. Discussion These results equate to realised genetic gains of 38.6% (Jashore) and 34.9% (Natore–Rajshahi) for the G3-multiplier over the control strain and provide evidence that a family-based (i.e. pedigree-based) approach to genetic improvement is able to generate substantial levels of genetic gain in rohu. Furthermore, the clear growth advantages exhibited by the G3-multiplier strain over the control and commercial strains in this study, should encourage more Bangladeshi hatcheries, nurseries and farmers to adopt genetically improved rohu.","PeriodicalId":101308,"journal":{"name":"Frontiers in aquaculture","volume":"69 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77563054","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}
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