Journal of The World Aquaculture Society最新文献

Effect of Cuminum cyminum essential oil on growth, histology, intestinal histomorphology, blood parameters, gonadal development, antioxidant activity, and disease resistance against Aeromonas hydrophila in Cyprinus carpio 孜然精油对鲤鱼生长、组织学、肠道组织形态学、血液参数、性腺发育、抗氧化活性以及对嗜水气单胞菌抗病性的影响

IF 2.8 3区农林科学

Journal of The World Aquaculture Society Pub Date : 2024-09-09 DOI: 10.1111/jwas.13099

Nalan Ozgur Yigit, Secil Metin, Hakan Didinen, Berrin Cetinkaya, Ozlem Ozmen

{"title":"Effect of Cuminum cyminum essential oil on growth, histology, intestinal histomorphology, blood parameters, gonadal development, antioxidant activity, and disease resistance against Aeromonas hydrophila in Cyprinus carpio","authors":"Nalan Ozgur Yigit, Secil Metin, Hakan Didinen, Berrin Cetinkaya, Ozlem Ozmen","doi":"10.1111/jwas.13099","DOIUrl":"https://doi.org/10.1111/jwas.13099","url":null,"abstract":"This study investigated the effects on growth performance, intestinal histomorphology, blood parameters, gonadal development, antioxidant activity, and disease resistance against Aeromonas hydrophila of carp fed with cumin. Fish were fed diets containing 0, 1.0, and 3.0 mL kg−1 cumin for 60 days. At the end of the experiment, the use of cumin oil did not affect growth performances and survival rate after challenge with A. hydrophila (p > 0.05). However, villi length and goblet cells increased in carp fed with cumin diets. In addition, no pathological findings were observed in the hepatopancreas, gonad, and intestine tissues of carp fed with cumin. Total protein; albumin; aspartate aminotransferase, alanine aminotransferase, and alkaline phosphatase levels; superoxide dismutase; and catalase activity were similar in cumin oil supplemented groups compared with the control. Both male and female fecundity increased with the addition of 1.0 mL kg−1 cumin, whereas the addition of 3.0 mL kg−1 cumin caused a slight decrease in fertility. As a result, the use of cumin essential oil at 1 mL kg−1 concentration can be recommended to improve fish health and increase fertility in carp culture.","PeriodicalId":17284,"journal":{"name":"Journal of The World Aquaculture Society","volume":"9 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142227521","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Role of ginger in fish nutrition with special emphasis on growth, health, gut and liver morphology 生姜在鱼类营养中的作用，特别强调生长、健康、肠道和肝脏形态

IF 2.8 3区农林科学

Journal of The World Aquaculture Society Pub Date : 2024-09-03 DOI: 10.1111/jwas.13101

Ishtiyaq Ahmad, Misbah Irm, Imtiaz Ahmed, Yin Haoran, Sehrish Taj, Tahir Ahmad Bhat, Saba Khursheed Khan, Sabah Mushtaq Puswal, Hala Saber Khalil, Mentor Sopjani, Helena Peres, Caterina Faggio, Mohd Ashraf Rather, Adnan Amin

{"title":"Role of ginger in fish nutrition with special emphasis on growth, health, gut and liver morphology","authors":"Ishtiyaq Ahmad, Misbah Irm, Imtiaz Ahmed, Yin Haoran, Sehrish Taj, Tahir Ahmad Bhat, Saba Khursheed Khan, Sabah Mushtaq Puswal, Hala Saber Khalil, Mentor Sopjani, Helena Peres, Caterina Faggio, Mohd Ashraf Rather, Adnan Amin","doi":"10.1111/jwas.13101","DOIUrl":"https://doi.org/10.1111/jwas.13101","url":null,"abstract":"Ginger, Zingiber officinale, is a medicinal herb widely used for its distinct flavor and medicinal properties. It contains various bioactive compounds, including zingerone, shogaols, gingerol saponin, polyphenols, and flavonoids, which confer anti‐inflammatory, antioxidant, and immunomodulatory effects. Ginger and its derivatives such as powder, essential oil, and active ginger extracts have been used as natural functional ingredients with health‐promoting and disease‐preventing properties. In recent studies, ginger derivatives have been tested in aquafeeds for their potential as safe herbal medicines. They have shown several benefits, acting as growth promoters and modulators of physiological and biochemical functions. Ginger has been found to improve growth performance, modulate immunity, and enhance disease resistance in fish. Its organic constituents exhibit potent anti‐stress, antibacterial, antiviral, and antiparasitic activities, thereby boosting the specific and nonspecific immunity of aquaculture fish. This review provides a comphrensive summary of studies exploring the effects of dietary ginger on various aspects of fish health including growth performance, blood parameters, immunity, disease resistance, gut morphology, antioxidant status, and molecular mechanisms. Furthermore, the review emphasizes the necessity of elucidating the specific bioactive compounds in ginger responsible for its biological functions and their mechanisms of action against infectious diseases in different fish species.","PeriodicalId":17284,"journal":{"name":"Journal of The World Aquaculture Society","volume":"12 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142182567","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Fish production, water quality, and the role of nitrification as an ammonia removal process in intensively aerated hybrid catfish ponds 鱼类产量、水质以及硝化作用作为强化曝气杂交鲶鱼池塘除氨过程的作用

IF 2.8 3区农林科学

Journal of The World Aquaculture Society Pub Date : 2024-08-28 DOI: 10.1111/jwas.13094

Brian D. Ott, Eugene L. Torrans, Craig S. Tucker

{"title":"Fish production, water quality, and the role of nitrification as an ammonia removal process in intensively aerated hybrid catfish ponds","authors":"Brian D. Ott, Eugene L. Torrans, Craig S. Tucker","doi":"10.1111/jwas.13094","DOIUrl":"https://doi.org/10.1111/jwas.13094","url":null,"abstract":"Six 0.1‐ha earthen ponds with 45 kW/ha of aeration capacity were stocked with hybrid catfish (Ictalurus punctatus x I. furcatus) ranging from 15,000 to 90,000 fish ha−1 in 15,000 fish ha−1 increments to analyze the effect of nitrogen loading on ammonia accumulation and fish production. Minimum dissolved oxygen (DO) concentration was maintained above 3.0 mg O2 L−1 to prevent hypoxia‐induced appetite reduction. Stocking density did not impact survival but decreased average fish harvest weight and increased food conversion ratio (FCR). Gross production increased with stocking density and ranged from 7249 to 35,674 kg ha−1. Average total (TAN) and un‐ionized ammonia (NH3) were not different among stocking densities despite greater nitrogen inputs in ponds with higher feeding rates. Nitrite () and nitrate () concentrations were significantly higher in ponds with higher stocking densities, suggesting that nitrification increased with nitrogen loading. Phytoplankton assimilation of ammonia is the primary ammonia removal process in traditional catfish ponds with modest fish densities and feeding rates. However, in intensively aerated ponds with high feeding rates, nitrification can become an important process for ammonia removal. These data indicate that small earthen hybrid catfish ponds with high aeration capacities can increase catfish production without ammonia accumulating.","PeriodicalId":17284,"journal":{"name":"Journal of The World Aquaculture Society","volume":"16 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142182568","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Manipulation impacts of jack mackerel meal in low fish meal diets on growth, feed availability, and biochemical composition of olive flounder (Paralichthys olivaceus) and economic analysis 低鱼粉日粮中竹荚鱼粉对橄榄鲽（Paralichthys olivaceus）生长、饲料利用率和生化成分的影响及经济性分析

IF 2.8 3区农林科学

Journal of The World Aquaculture Society Pub Date : 2024-08-27 DOI: 10.1111/jwas.13096

Yu Jin Sim, Sung Hwoan Cho, Taeho Kim

{"title":"Manipulation impacts of jack mackerel meal in low fish meal diets on growth, feed availability, and biochemical composition of olive flounder (Paralichthys olivaceus) and economic analysis","authors":"Yu Jin Sim, Sung Hwoan Cho, Taeho Kim","doi":"10.1111/jwas.13096","DOIUrl":"https://doi.org/10.1111/jwas.13096","url":null,"abstract":"Manipulation effects of jack mackerel meal (JMM) in the low fish meal (FM) diets substituting 50% FM with meat meal (MM) on growth performance of olive flounder and economic analysis were determined. Seven experimental diets were created. The control (Con) diet contained 60% FM. In the other diets, 50% of the FM level used for the Con diet was substituted with MM, and then graded levels (0, 10, 20, 30, 40, and 50%) of JMM were included at the expense of FM, named the MJ0, MJ10, MJ20, MJ30, MJ40, and MJ50 diets, respectively. The experimental diets were distributed to triplicate groups of fish. A total of 525 fish was divided into 21 flow‐through tanks. Fish were hand‐fed to apparent satiation for 8 weeks. Weight gain, specific growth rate (SGR), and feed consumption of fish fed the Con diet were comparable with fish fed the MJ20, MJ30, MJ40, and MJ50 diets. Weight gain, SGR, and feed consumption of fish linearly improved with JMM inclusion levels in the low FM diets replacing 50% FM with MM. The strong correlation between isoleucine and lysine content among essential amino acids in the experimental diets versus weight gain, SGR, and feed consumption of olive flounder were observed. Dietary treatments did not influence feed utilization, chemical composition, and amino acid profiles of fish. Incorporated 20%–50% JMM as an effective feed attractant and enhancer in the low FM diets replacing 50% FM with MM achieved comparable weight gain, SGR, and feed consumption to fish fed a 60% FM‐based diet. Finally, the MJ50 diet led to the highest economic profit index (EPI) for farmers.","PeriodicalId":17284,"journal":{"name":"Journal of The World Aquaculture Society","volume":"10 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142182570","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Salinity/ionic balance interactions on the zootechnical performance and histology of Litopenaeus vannamei and water quality in a biofloc system 盐度/离子平衡对万年青的动物学性能和组织学以及生物絮团系统中的水质的相互作用

IF 2.3 3区农林科学

Journal of The World Aquaculture Society Pub Date : 2024-08-13 DOI: 10.1111/jwas.13093

Mitsuaki Ueno Fukura, Luis Felipe Collazos Lasso, Luis Alejandro Vinatea Arana, Bernardo Baldisserotto

{"title":"Salinity/ionic balance interactions on the zootechnical performance and histology of Litopenaeus vannamei and water quality in a biofloc system","authors":"Mitsuaki Ueno Fukura, Luis Felipe Collazos Lasso, Luis Alejandro Vinatea Arana, Bernardo Baldisserotto","doi":"10.1111/jwas.13093","DOIUrl":"10.1111/jwas.13093","url":null,"abstract":"This study aimed to evaluate the interactions between two low salinities (S = 4 and 8 g L−1) and two ionic balances (Na+/Mg+2/Ca+2/K+ ratio, IB1 = 27.6/3.6/1.05/1 and IB2 = 40.6/4.7/1.98/1) on zootechnical performance and histology of Litopenaeus vannamei postlarvae (0.0073 ± 0.0007 g) and juveniles (0.2163 ± 0.0080 g) reared in a biofloc system at stocking density of 1500 and 300 individuals m−3, respectively, over two culture phases: nursery (30 days) and grow-out (60 days). High nitrification processes were detected at lower salinity treatments, with the lowest ammonia and nitrite concentration in those. There were no significant differences on shrimp survival between treatments; however, the best final weights were observed in the S8IB2 (0.24 ± 0.01 g) and S4IB1 (2.80 ± 0.12 g) treatments for the nursery and grow-out stages, respectively. The most frequent histological lesions were the absence of lipid vacuoles in the hepatopancreas and abundant organic debris in the gill lamellae. The viability of rearing L. vannamei juveniles in biofloc at low salinity is still relatively weak because of their low growth and low efficiency to store fatty acids in the hepatopancreas; however, higher postlarvae productivity was found at 8 g L−1 and Na+/Mg+2/Ca+2/K+ ratio of 40.6/4.7/1.98/1 in the nursery stage.","PeriodicalId":17284,"journal":{"name":"Journal of The World Aquaculture Society","volume":"55 5","pages":""},"PeriodicalIF":2.3,"publicationDate":"2024-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jwas.13093","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142223919","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Evaluation of a carbohydrase (xylanase and glucanase) enzyme complex in diets for Florida pompano Trachinotus carolinus 对佛罗里达鲳鱼（Trachinotus carolinus）日粮中碳水化合物酶（木聚糖酶和葡聚糖酶）复合酶的评估

IF 2.3 3区农林科学

Journal of The World Aquaculture Society Pub Date : 2024-08-05 DOI: 10.1111/jwas.13095

William Stites, Alexis Weldon, João Reis, Paulo Ito, Melanie Rhodes, D. Allen Davis

{"title":"Evaluation of a carbohydrase (xylanase and glucanase) enzyme complex in diets for Florida pompano Trachinotus carolinus","authors":"William Stites, Alexis Weldon, João Reis, Paulo Ito, Melanie Rhodes, D. Allen Davis","doi":"10.1111/jwas.13095","DOIUrl":"10.1111/jwas.13095","url":null,"abstract":"Florida pompano, Trachinotus carolinus, can be fed soy-based, low-animal protein diets. However, anti-nutritional factors and carbohydrates limit digestibility. Dietary carbohydrase enzymes have been used to improve carbohydrate digestibility in several species and may be beneficial for Florida pompano. The present study was designed to evaluate the effects of using a carbohydrase enzyme complex (Natugrain® TS L, BASF Corporation, Ludwigshafen, Germany) composed of endo-1,4-ß-xylanase and endo-1,4-ß-glucanase (Xyl + Glu) on growth performance, feed utilization, and digestibility in diets fed to juvenile Florida pompano. A growth trial was conducted with iso-nitrogenous (40%) and iso-lipidic (8%) test diets containing 0, 0.015, 0.030, and 0.045% of Xyl + Glu. The trial was conducted in a recirculating system with 12, 1000-L tanks. Twenty fish (mean weight: 23.34 g ± 1.49 g) were stocked into each tank in a randomized design. Growth results indicated that there were no significant differences (p > 0.05) in growth and feed conversion; however, thermal growth coefficient displayed significant differences (p = 0.0499) between the 0.015 and 0.030% inclusion. All enzymatic treatments displayed significant differences (p = 0.029) in apparent digestibility of crude protein compared with the basal diet. Results indicate that Xyl + Glu enzyme complex can impact protein digestibility but did not significantly affect growth performance.","PeriodicalId":17284,"journal":{"name":"Journal of The World Aquaculture Society","volume":"55 5","pages":""},"PeriodicalIF":2.3,"publicationDate":"2024-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jwas.13095","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141941390","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Tolerance of juvenile lumpfish (Cyclopterus Lumpus) to high rearing densities 鳞鲈幼鱼对高密度饲养的耐受性

IF 2.8 3区农林科学

Journal of The World Aquaculture Society Pub Date : 2024-07-30 DOI: 10.1111/jwas.13089

Nathaniel N. Spada, Elizabeth A. Fairchild, Jesse T. Trushenski

{"title":"Tolerance of juvenile lumpfish (Cyclopterus Lumpus) to high rearing densities","authors":"Nathaniel N. Spada, Elizabeth A. Fairchild, Jesse T. Trushenski","doi":"10.1111/jwas.13089","DOIUrl":"https://doi.org/10.1111/jwas.13089","url":null,"abstract":"Lumpfish (Cyclopterus lumpus) are raised as cleaner fish for controlling sea lice. Intensive rearing is complicated by fin nipping that occurs between juvenile conspecifics. Lumpfish density‐dependent interactions are not well understood; therefore, the effects of rearing density for different fish size classes warranted evaluation. Two size classes (2‐ and 13‐g) of juvenile lumpfish were stocked at four different rearing densities (40, 60, 70, and 90 g/L) with growth, survival, and fish aggression assessed over 8 weeks. Mean weight gain and specific growth rates ranged from 170% to 307% and 1.77% to 2.50%, respectively, depending on density treatments, for the 2‐g fish, and from 286% to 471% and 2.42% to 3.10% for the 13‐g fish. Growth was negatively correlated with density, with faster growth linked to lower densities. No mortality occurred in any treatment and significant fish aggression only occurred among the larger lumpfish in the higher rearing densities. Based on these findings, growth of 2‐g lumpfish can be increased if reared at 40 g/L or slowed at 70 g/L without impacting aggression. For grow out of 13‐g fish to ~70 g with minimal aggression, a 40 g/L rearing density is recommended for faster growth and 60 g/L for slower growth.","PeriodicalId":17284,"journal":{"name":"Journal of The World Aquaculture Society","volume":"4 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141869428","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Potential of heat shock protein inducers in mitigating benzo[α]pyrene toxicity in stellate sturgeon fingerlings (Acipenser stellatus): Assessing the effects on CYP450 and AChE activity, HSP70 expression, antioxidant levels, cortisol, and immunological responses 热休克蛋白诱导剂在减轻星鲟幼鱼苯并[α]芘毒性方面的潜力：评估对 CYP450 和 AChE 活性、HSP70 表达、抗氧化剂水平、皮质醇和免疫反应的影响

IF 2.8 3区农林科学

Journal of The World Aquaculture Society Pub Date : 2024-07-25 DOI: 10.1111/jwas.13092

Leila Vahdatiraad, Behrooz Heidari, Sevda Zarei, Tooraj Sohrabi, Hossein Ghafouri

{"title":"Potential of heat shock protein inducers in mitigating benzo[α]pyrene toxicity in stellate sturgeon fingerlings (Acipenser stellatus): Assessing the effects on CYP450 and AChE activity, HSP70 expression, antioxidant levels, cortisol, and immunological responses","authors":"Leila Vahdatiraad, Behrooz Heidari, Sevda Zarei, Tooraj Sohrabi, Hossein Ghafouri","doi":"10.1111/jwas.13092","DOIUrl":"https://doi.org/10.1111/jwas.13092","url":null,"abstract":"Benzo[α]pyrene (BαP), a polycyclic aromatic hydrocarbon (PAH), is a significant contaminant in the environment, which accumulates and is toxic to invertebrates and fish. The present study aimed to determine the acute toxicity of sublethal concentrations of BαP in the presence of the heat shock protein (HSP) inducer (HSPi) on CYP450 activity, HSP70 gene expression, antioxidant levels, immunological alterations, and AChE activity in stellate sturgeon fingerlings. Two‐hundred and forty fish were exposed to 100 mg L−1 of Nopal endurance (HSPi) for 4 h. In the next step, the fish were exposed to BαP concentrations equivalent to 25%, 50%, and 75% of the 96‐h LC50 values. Sampling was carried out on the first, third, and sixth days of the experiment, and the samples were analyzed using two‐way analysis of variance (ANOVA), cluster analysis (CA), and principal component analysis (PCA). The CYP450 activity significantly increased under BαP treatments. Higher expression of the HSP70 gene was observed in the higher concentration of HSPi + BαP treatments. The lowest AChE activity was observed in BαP treatments. However, the activity of superoxide dismutase, catalase, and total antioxidant activity enzymes and immunological responses (lysozyme, IgM, and C3) increased by using HSPi. It can be concluded that the HSP inducer significantly decreased BαP toxicity and resulted in more resistance to stress situations in sturgeon fingerlings.","PeriodicalId":17284,"journal":{"name":"Journal of The World Aquaculture Society","volume":"245 1","pages":""},"PeriodicalIF":2.8,"publicationDate":"2024-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141782445","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Elevated water temperature in combination with an increase in daylength stimulate a synchronized onset of spermatogenesis in male Atlantic salmon (Salmo salar, L.) postsmolts 水温升高与昼长增加共同刺激雄性大西洋鲑（Salmo salar, L.）蜕皮后精子发生的同步开始

IF 2.3 3区农林科学

Journal of The World Aquaculture Society Pub Date : 2024-07-12 DOI: 10.1111/jwas.13090

Enrique Pino-Martinez, Kari Anne Kamlund, Pablo Balseiro, Marianne Kraugerud, Albert Kjartan Dagbjartarson Imsland, Sigurd O. Handeland

{"title":"Elevated water temperature in combination with an increase in daylength stimulate a synchronized onset of spermatogenesis in male Atlantic salmon (Salmo salar, L.) postsmolts","authors":"Enrique Pino-Martinez, Kari Anne Kamlund, Pablo Balseiro, Marianne Kraugerud, Albert Kjartan Dagbjartarson Imsland, Sigurd O. Handeland","doi":"10.1111/jwas.13090","DOIUrl":"10.1111/jwas.13090","url":null,"abstract":"Male postsmolt maturation (“jacking”) is undesired in Atlantic salmon aquaculture due to economic and welfare impacts. Unfortunately, incidence of jacking has increased linked to intensive rearing conditions. This study subjected 1000 salmon (52.1 ± 5.2 g) to one of two temperatures (15, 12.5°C) and one of two photoperiods (constant light-LL, a 5-week LD12:12 winter signal regime-WS) to assess their effects on spermatogenesis regulation. Indicators included testis histology images, mRNA transcription of gonadotropin receptors for follicle-stimulating hormone (fshr) and luteinizing hormone (lhr), and of factors regulating spermatogenesis like anti-Müllerian hormone (amh), gonadal-soma-derived factors 1 and 2 (gsdf1 and gsdf2), and insulin-like growth factor-3 (igf3). High temperature (15°C) induced early testis development processes irrespective of photoperiod, evidenced by presence of type B spermatogonia before clear increases in testis size or any transcriptional changes. The winter signal at 15°C caused a synchronized onset of spermatogenesis not present under constant light. This was evidenced by a pronounced downregulation of the spermatogenesis-inhibiting factor amh and a clear upregulation in the stimulating factor igf3. Consequently, combining high temperatures with winter signal regimes pose risk; high temperature can stimulate early cellular/endocrine processes of spermatogenesis, which can later be synchronized in the population by an increase in daylength.","PeriodicalId":17284,"journal":{"name":"Journal of The World Aquaculture Society","volume":"55 5","pages":""},"PeriodicalIF":2.3,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jwas.13090","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141614089","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Embryonic and early larval development of Florida pompano, Trachinotus carolinus 佛罗里达鲳鱼（Trachinotus carolinus）的胚胎和早期幼虫发育

IF 2.3 3区农林科学

Journal of The World Aquaculture Society Pub Date : 2024-07-01 DOI: 10.1111/jwas.13077

Ashley N. Morgan, Susan B. Fogelson, Paul S. Wills, Tracy Mincer, Sahar Mejri, Annie Page

{"title":"Embryonic and early larval development of Florida pompano, Trachinotus carolinus","authors":"Ashley N. Morgan, Susan B. Fogelson, Paul S. Wills, Tracy Mincer, Sahar Mejri, Annie Page","doi":"10.1111/jwas.13077","DOIUrl":"10.1111/jwas.13077","url":null,"abstract":"The Florida pompano, Trachinotus carolinus, is an ideal species for commercial aquaculture because of its rapid growth, tolerance to a range of environmental parameters, and high demand in the seafood market. This study detailed embryonic and early larval development of this species. Florida pompano followed similar developmental sequences to those observed in other marine teleosts, and embryos hatched between 22 and 28 h post-fertilization. Significant brain lobe differentiation occurred prior to hatching. Pectoral fins were functional within 1-day post-hatch (dph). Substantial eye development occurred within 3 dph, indicating visual acuity prior to the onset of exogenous live feeding. Intestinal segments were differentiated by 3 dph, and rotifers were seen in the digestive tract by 4 dph. Digestive functions were limited through the first 7 dph because of the absence of functional gastric glands and gastric mucous cells in the rudimentary stomach, lipid vacuoles in the anterior intestines, and the persistence of acidophilic supranuclear vesicles in the posterior intestines. Within 7 dph, the pharyngeal arches differentiated, and hematopoietic tissue and mesonephric tubules were visible in the larval kidney. Their rapid larval development and organogenesis are additional factors that make Florida pompano an ideal species for aquaculture production and should encourage continued efforts toward commercialization.","PeriodicalId":17284,"journal":{"name":"Journal of The World Aquaculture Society","volume":"55 4","pages":""},"PeriodicalIF":2.3,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jwas.13077","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141523608","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0