Boletim do Instituto de Pesca最新文献_第4页

Length structure analysis of the Atlantic thread herring (Opisthonema oglinum) captured in the Santa Cruz Channel (Pernambuco, Brazil), using generalized additive models for location, scale and shape 在巴西伯南布哥州圣克鲁斯海峡捕获的大西洋线鲱鱼(Opisthonema oglinum)的长度结构分析，使用广义加性模型对其位置、规模和形状进行分析

IF 0.4 4区农林科学

Boletim do Instituto de Pesca Pub Date : 2023-03-15 DOI: 10.20950/1678-2305/bip.2022.48.e720

Nathielly Lima Do Rêgo, H. Andrade, P. Duarte-Neto

{"title":"Length structure analysis of the Atlantic thread herring (Opisthonema oglinum) captured in the Santa Cruz Channel (Pernambuco, Brazil), using generalized additive models for location, scale and shape","authors":"Nathielly Lima Do Rêgo, H. Andrade, P. Duarte-Neto","doi":"10.20950/1678-2305/bip.2022.48.e720","DOIUrl":"https://doi.org/10.20950/1678-2305/bip.2022.48.e720","url":null,"abstract":"The Atlantic thread herring (Opisthonema oglinum) is the most common sardine in Santa Cruz Channel landings, which is located on the Northern coast of Pernambuco state, in Brazil. The species spends part of its life cycle at sea and enters estuaries at strategic times. Its high exploitation and importance to the economy in the municipalities surrounding the channel led us to reflect on the need for investigations to promote sustainable fishing and a better understanding of its behavior in that place. In this study, the standard length of the specimens was estimated using generalized additive models for location, scale, and shape, and the factors that drive the length pattern along the estuary were discussed. It was identified the presence of larger individuals in the rainy season and greater concentration in the Center-South region of the channel. The smaller sardines were concentrated near the outflow of the Botafogo River, an area of secondary channels with greater mangrove coverage. Few adults enter the channel and the vast majority of specimens captured were young. Thus, it would be pertinent to explore specimens that have at least reached sexual maturity, since the capture of young individuals can cause an imbalance of species sustainability.","PeriodicalId":9062,"journal":{"name":"Boletim do Instituto de Pesca","volume":"24 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2023-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73727772","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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: 1

Characterization of the zooplankton in the continental shelf of the Brazilian Equatorial Atlantic 巴西赤道大西洋大陆架浮游动物的特征

IF 0.4 4区农林科学

Boletim do Instituto de Pesca Pub Date : 2023-02-17 DOI: 10.20950/1678-2305/bip.2022.48.e767

Y. B. S. Nunes, M. Cutrim, X. G. Diaz, P. N. Campos, G. Palheta, N. Melo

引用次数: 0

Diet of Psalidodon aff. fasciatus (Cuvier, 1819) (Teleostei: Characidae) in a neotropical river before reservoir formation 在水库形成之前，新热带河流中的一种新热带河鲈的食性(居维叶，1819)(鲈形目:鱼科)

IF 0.4 4区农林科学

Boletim do Instituto de Pesca Pub Date : 2023-02-17 DOI: 10.20950/1678-2305/bip.2022.48.e728

José Rafael Soares Fonseca, Carlos Henrique Orsi, M. T. Baumgartner, Anderson Maciel, E. Kashiwaqui, G. Baumgartner

{"title":"Diet of Psalidodon aff. fasciatus (Cuvier, 1819) (Teleostei: Characidae) in a neotropical river before reservoir formation","authors":"José Rafael Soares Fonseca, Carlos Henrique Orsi, M. T. Baumgartner, Anderson Maciel, E. Kashiwaqui, G. Baumgartner","doi":"10.20950/1678-2305/bip.2022.48.e728","DOIUrl":"https://doi.org/10.20950/1678-2305/bip.2022.48.e728","url":null,"abstract":"The main objective of this study was to identify spatial and seasonal variations on the diet of Psalidodon aff. fasciatus from the Tibagi River (South Brazil) before the construction of the Tibagi Montante hydropower plant. Fish were collected quarterly between October 2017 and July 2019. 536 stomachs containing feeding items and identified to the lowest taxonomic level as possible have been analyzed. Results showed that plants, Hymenoptera, and insect parts in general were the most consumed items. The analysis of feeding strategy showed a diet based on rare items but with individuals varying among specialist, generalist, and opportunistic trends depending on the season. The non-metric multidimensional scaling (NMDS) revealed diet overlap in both spatial and seasonal terms, which was confirmed by the permutational analysis of variance (PERMANOVA). The indicator value analysis (IndVal) identified 15 items as the most important components of this species’ diet such as superior plants, Hymenoptera and insect parts. Therefore, before the formation of the reservoir, P. aff. fasiatus could be characterized as predominantly herbivore with a strong trend for insectivory. Across seasons, this species had a specialized diet all year, although with more specialized preferences in the spring when the consumption of plants was increased.","PeriodicalId":9062,"journal":{"name":"Boletim do Instituto de Pesca","volume":"15 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2023-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79567337","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Antinutritional effect of lectin from faveira (Parkia platycephala) seeds in tambatinga (Colossoma macropomum x Piaractus brachypomus) 蚕豆种子凝集素对柽柳的抗营养作用

IF 0.4 4区农林科学

Boletim do Instituto de Pesca Pub Date : 2023-02-09 DOI: 10.20950/1678-2305/bip.2022.48.e745

R. D. da Silva, C. S. Teixeira, A. Pretto, Thaisa Sales Costa, J. C. Siqueira, Bruna Tássia Santos Pantoja, B. Baldisserotto, J. M. Lopes

{"title":"Antinutritional effect of lectin from faveira (Parkia platycephala) seeds in tambatinga (Colossoma macropomum x Piaractus brachypomus)","authors":"R. D. da Silva, C. S. Teixeira, A. Pretto, Thaisa Sales Costa, J. C. Siqueira, Bruna Tássia Santos Pantoja, B. Baldisserotto, J. M. Lopes","doi":"10.20950/1678-2305/bip.2022.48.e745","DOIUrl":"https://doi.org/10.20950/1678-2305/bip.2022.48.e745","url":null,"abstract":"This study investigated the possible antinutritional effects of Parkia platycephala lectin (0, 20, 40, or 60 mg kg-1 of diet) on tambatinga feeding for 60 days as well as methods of inactivating this protein. Weight gain, specific growth rate, and relative weight gain decreased, and the feed conversion rate increased with the increase in dietary lectin. The hepatic glycogen levels of fish fed 60 mg kg-1 were higher than those of fish fed 20 and 40 mg kg-1. Diets containing 40 and 60 mg kg-1 increased muscle glucose levels compared to the control group. Fish-fed diets containing lectin showed reduced muscle glycogen compared to those receiving the control diet. Fish fed 60 mg kg-1 presented lower muscle protein levels than those fed 20 mg kg-1. In vitro tests showed that the hemagglutination activity of lectin was inhibited by d-mannose, d-glucose, and α-methyl-d-mannopyranoside. Thermal treatment at 50–60°C was sufficient to reduce the action of lectin, as well as a pH below and above the 6–7 range. Therefore, the use of P. platycephala meals as a dietary ingredient for tambatinga with no lectin inactivation is not recommended as it can negatively affect the fish’s biochemical parameters and growth. Acid or alkaline solutions can be an alternative for inactivating the protein and improving its use by fish and other animals.","PeriodicalId":9062,"journal":{"name":"Boletim do Instituto de Pesca","volume":"1 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2023-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85530020","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Histopathological changes in Lithobates catesbeianus tadpoles used as biomarkers of pesticide poisoning 作为农药中毒生物标志物的斑蛙蝌蚪的组织病理学变化

IF 0.4 4区农林科学

Boletim do Instituto de Pesca Pub Date : 2023-02-09 DOI: 10.20950/1678-2305/bip.2022.48.e711

A. S. Marcantonio, F. M. França, Diego Sales Santos, A. Martins, M. Hipólito, S. H. C. Schalch, Cristina Viariato, C. M. Ferreira

{"title":"Histopathological changes in Lithobates catesbeianus tadpoles used as biomarkers of pesticide poisoning","authors":"A. S. Marcantonio, F. M. França, Diego Sales Santos, A. Martins, M. Hipólito, S. H. C. Schalch, Cristina Viariato, C. M. Ferreira","doi":"10.20950/1678-2305/bip.2022.48.e711","DOIUrl":"https://doi.org/10.20950/1678-2305/bip.2022.48.e711","url":null,"abstract":"The use of biological indicators has increased in recent years with the aim of investigating environmental pollution in aquatic environments that are vulnerable to the constant use of pesticides. Some biomarkers can help assess the health status, indicating physical, metabolic, and behavioral changes under acute and sublethal poisoning. The mixture of the active ingredients cyproconazole and picoxystrobin is a widely used fungicide for the control of pests in cotton, rice, coffee, sugarcane, corn, soybean, and wheat. The objective of this study was to verify the occurrence of possible histopathological lesions in the liver and kidneys of bullfrog tadpoles (Lithobates catesbeianus) caused by a fungicide commercial formula composed of picoxystrobin and cyproconazole. The animals were subjected to different concentrations of the fungicide to determine the median lethal concentration (LC50-96h = 0.05 mg L-1), that is, the lethal dose for 50% of the animals in 96 h. After determining the value of LC50-96h, the animals were subjected to three sublethal concentrations (LC50-96h/2, LC50-96h/10, and LC50-96h/100). Through histological biomarkers, it was verified that this fungicide changed the morphology of the animals' kidney and liver tissues in a chronic way, impairing the functioning of organs that are essential for their survival and metamorphosis, which can result in an imbalance in the biodiversity of aquatic ecosystems.","PeriodicalId":9062,"journal":{"name":"Boletim do Instituto de Pesca","volume":"171 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2023-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75453349","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Production of pacific white shrimp in biofloc system with different food management strategies 不同食物管理策略下生物群落中太平洋白对虾的生产

IF 0.4 4区农林科学

Boletim do Instituto de Pesca Pub Date : 2023-02-02 DOI: 10.20950/1678-2305/bip.2022.48.e707

Weverson Ailton Da Silva, A. P. M. De Morais, J. P. Figueiredo, Ramires Eloise Queiroz Rafael, Carlos Yure Barbosa de Oliveira, F. N. Vieira

{"title":"Production of pacific white shrimp in biofloc system with different food management strategies","authors":"Weverson Ailton Da Silva, A. P. M. De Morais, J. P. Figueiredo, Ramires Eloise Queiroz Rafael, Carlos Yure Barbosa de Oliveira, F. N. Vieira","doi":"10.20950/1678-2305/bip.2022.48.e707","DOIUrl":"https://doi.org/10.20950/1678-2305/bip.2022.48.e707","url":null,"abstract":"In the present work, different models for adjustments in feeding rates to produce Pacific white shrimp (Litopenaeus vannamei) in a biofloc system were analyzed. Shrimps were stocked with an initial weight of 4.21 ± 0.09 g at a density of 250 shrimp m-3 and fed following different methodologies for 60 days. The first method was according to the Van-Wyk table, considering the minimum (MIN) and maximum (MAX) feed rates. The second was according to two estimated values from the feed conversion ratio (FCR; FCR of 1.1 and 1.5), based on the methodology determined by Garzade Yta. A completely randomized experimental design was adopted, consisting of four treatments (MAX, MIN, FCR 1.1, and FCR 1.5) with 4 independent replicates. Zootechnical performance, the physical and chemical water quality parameters, and the production of solids in the system were evaluated. The treatment that used minimum amounts of feed determined by the table showed a better feed conversion, survival, using a lower amount of feed and, thus, generating less waste. Although the feeding strategy using the minimum values in the table has shown better results, it is still necessary to improve these strategies, as the Biofloc system is a system that has variations and their adjustments must be made according to the interactions of the system.","PeriodicalId":9062,"journal":{"name":"Boletim do Instituto de Pesca","volume":"22 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2023-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74917651","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Salinized water as a strategy for increase stocking density in Heros severus larviculture, an Amazonian ornamental fish 盐碱化水作为增加亚马逊河观赏鱼幼鱼放养密度的策略

IF 0.4 4区农林科学

Boletim do Instituto de Pesca Pub Date : 2023-02-02 DOI: 10.20950/1678-2305/bip.2022.48.e742

L. D. Oliveira, Bianca Gomes da Silveira, Edileno Tiago de Sousa Nascimento, Bruno José Corecha Fernandes Eiras, L. B. de Moura, A. L. Salaro, C. Cordeiro, D. A. Campelo

{"title":"Salinized water as a strategy for increase stocking density in Heros severus larviculture, an Amazonian ornamental fish","authors":"L. D. Oliveira, Bianca Gomes da Silveira, Edileno Tiago de Sousa Nascimento, Bruno José Corecha Fernandes Eiras, L. B. de Moura, A. L. Salaro, C. Cordeiro, D. A. Campelo","doi":"10.20950/1678-2305/bip.2022.48.e742","DOIUrl":"https://doi.org/10.20950/1678-2305/bip.2022.48.e742","url":null,"abstract":"The aim of this study was to evaluate the effect of different salinized water (0, 3 and 6 g L-1) and stocking densities (10, 15 and 20 larvae L-1) in Heros severus larviculture. The experimental design was completely randomized, in a 3x3 factorial design, with three replicates. For this, a total of 405 larvae of H. severus were randomly distributed in 27 aquariums (1L) according to the treatments and after 15 days all the larvae were measured, weighed and counted. Higher values for final length, length gain and specific growth rate were observed in H. severus larvae raised at any stocking density tested at 3 g L-1 of salinized water (p < 0.05). The final weight and weight gain followed the same trend of the length, being higher in fish submitted to 3 g L-1 of salinized water (p < 0.05). On the other hand, the salinized water of 6 g L-1 was detrimental to larvae weight uniformity and survival rate (p < 0.05). The fish stocked at densities of 15 or 20 larvae L-1 presented the best results of final weight and weight gain (p < 0.05). The stocking density of 20 larvae L-1 in salinized water at 3 g L-1 is recommended for H. severus larviculture.","PeriodicalId":9062,"journal":{"name":"Boletim do Instituto de Pesca","volume":"2 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2023-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84541982","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Do cage fish farms interfere with the food aspects of the wild species Metynnis lippincottianus (Characiformes, Serrasalmidae)? 网箱养鱼场是否会干扰野生鱼种米沙米(Metynnis lippincottianus)的食性?

IF 0.4 4区农林科学

Boletim do Instituto de Pesca Pub Date : 2022-12-20 DOI: 10.20950/1678-2305/bip.2022.48.e722

Julia Kaori Kuriyama Ramos, Vinicius Cesar do Bonfim, Bruna Caroline Kotz Kliemann, José Daniel Soler Garves, R. L. Delariva, I. P. Ramos

{"title":"Do cage fish farms interfere with the food aspects of the wild species Metynnis lippincottianus (Characiformes, Serrasalmidae)?","authors":"Julia Kaori Kuriyama Ramos, Vinicius Cesar do Bonfim, Bruna Caroline Kotz Kliemann, José Daniel Soler Garves, R. L. Delariva, I. P. Ramos","doi":"10.20950/1678-2305/bip.2022.48.e722","DOIUrl":"https://doi.org/10.20950/1678-2305/bip.2022.48.e722","url":null,"abstract":"We evaluated the differences in the diet and trophic guild of Metynnis lippincottianus under the influence of cage fish farms in the Neotropical reservoir. We collected samples from two areas (cage farm and control) in March and June 2019. Stomach contents were examined, and food items were identified and quantified using the volumetric method. Differences in diet composition were evaluated using PERMANOVA and SIMPER analyses, while trophic niche breadth was determined using PERMDISP. The trophic guild for each area was also determined. Significant differences in diet between cage farm and control areas were observed, due to consumption of pelleted feed, microcrustaceans, Egeria sp., and filamentous algae. In both sampling areas, M. lippincottianus was classified as algivorous. Despite the pelleted feed consumption in the cage farm area, no differences were observed in trophic niche breadth and the trophic guild. In addition, algae and macrophytes still accounted for the majority of this species' diet in both areas, indicating partitioning of resources. This resource partitioning may favor coexistence, but it is worth mentioning that pelleted feed consumption still indicates the influence of cage fish farms on the diet of wild fish.","PeriodicalId":9062,"journal":{"name":"Boletim do Instituto de Pesca","volume":"62 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2022-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80731839","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Oropharyngeal morphological aspects of Arapaima gigas (Schinz, 1822) 巨骨舌鱼的口咽形态学特征(Schinz, 1822)

IF 0.4 4区农林科学

Boletim do Instituto de Pesca Pub Date : 2022-12-20 DOI: 10.20950/1678-2305/bip.2022.48.e697

Luana Félix de Melo, Julia Bastos de Aquino, Keila Silva Pinto, Jerônimo Vieira Dantas Filho, M. Miglino, Sandro de Vargas Schons, Rose Eli Grassi Rici

{"title":"Oropharyngeal morphological aspects of Arapaima gigas (Schinz, 1822)","authors":"Luana Félix de Melo, Julia Bastos de Aquino, Keila Silva Pinto, Jerônimo Vieira Dantas Filho, M. Miglino, Sandro de Vargas Schons, Rose Eli Grassi Rici","doi":"10.20950/1678-2305/bip.2022.48.e697","DOIUrl":"https://doi.org/10.20950/1678-2305/bip.2022.48.e697","url":null,"abstract":"The study of the functional anatomy of the digestive system of fish, in particular the oropharyngeal cavity, is of great importance because it allows inferences about the feeding habit, mechanisms of capture, selection, and processing of food carried out by different species. Thus, the aim of this study was to describe the anatomical adaptations of the oropharyngeal cavity of the pirarucu (Arapaima gigas Schinz, 1822) using scanning electron microscopy (SEM) techniques. The oropharyngeal cavity of six specimens of pirarucu was collected in juvenile phase, from Aquaculture Research Center at the Universidade Federal de Rondônia (UNIR), created for commercial purposes. The anatomical pieces were fixed in 10% buffered formalin and processed for SEM analysis. Anatomically, the oropharyngeal cavity of the pirarucu is composed of five pairs of branchial arches, apical portion of the tongue, floor of the tongue, lower pharyngeal area, and upper pharyngeal plate. In SEM, we observed that the mucosa of the apex of the tongue and the upper pharyngeal roof have a smooth texture and are covered by squamous cells with numerous small openings scattered over the surface. The portions of the floor of the tongue and the lower pharyngeal area, on the other hand, have adaptations in the form of a projectile and numerous sensory papillae, giving a rough texture to the region. Thus, the oropharyngeal cavity of pirarucu is adapted for the capture, apprehension, and swallowing of its prey, with signs of carnivory.","PeriodicalId":9062,"journal":{"name":"Boletim do Instituto de Pesca","volume":"1988 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2022-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82292771","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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

Effect of OPG-supplemented diet on immune and stress responses and attenuation of LPS-induced damage in the liver of carp (Cyprinus carpio haematopterus) 饲料中添加opg对鲤鱼肝脏免疫和应激反应及脂多糖损伤消退的影响

IF 0.4 4区农林科学

Boletim do Instituto de Pesca Pub Date : 2022-12-20 DOI: 10.20950/1678-2305/bip.2022.48.e734

H. Yin, Zhixiang Yang

{"title":"Effect of OPG-supplemented diet on immune and stress responses and attenuation of LPS-induced damage in the liver of carp (Cyprinus carpio haematopterus)","authors":"H. Yin, Zhixiang Yang","doi":"10.20950/1678-2305/bip.2022.48.e734","DOIUrl":"https://doi.org/10.20950/1678-2305/bip.2022.48.e734","url":null,"abstract":"Effects of oxidized peptidoglycan (OPG) on immune and stress responses and lipopolysaccharide (LPS)-induced damage in the liver of carp were investigated in this study. Four hundred carps (Cyprinus carpio haematopterus) were fed with five experimental diets supplemented with 0, 100, 200, 400, and 800 mg kg-1 OPG for 28 days. Each group had four replicates and 20 fish per replication. LPS challenge (injection of 40 mg kg-1 saline or LPS) occurred at day 29. The supplementation with OPG linearly increased (p<0.05) plasma total protein, immunoglobulin M (IgM), complement 4 (C4), cortisol, and lactate on day 14. Dietary supplementation with OPG linearly increased (p<0.05) plasma and complement 3 (C3); quadratically improved (p<0.05) alkaline phosphatase (ALP) and lysozyme (LYS) activities; linearly increased hepatic superoxide dismutase (SOD) and catalase (CAT) activities; increased malondialdehyde (MDA) contents; and improved (p<0.05) hepatic anti-superoxide anion (ASA) and anti-hydroxy radical (AHR) contents on days 14 and 28. Dietary OPG significantly prevented the increase of interleukin 1β (IL-1β), interleukin 6 (IL-6), and tumor necrosis factor α (TNF-α) by inhibiting the excessive activation of TLR2-Myd88 signaling pathway; downregulating TLR2, Myd88, and NF-κB p65; and upregulating nuclear factor erythroid-2-related factor 2 (Nrf2) and Keap1 mRNA expression (p<0.05). Therefore, this study indicated that dietary OPG improves the plasma immune response, regulates the hepatic antioxidant status, and attenuates LPS-induced negative effects in the carp at the optimal dose of 400 mg kg-1.","PeriodicalId":9062,"journal":{"name":"Boletim do Instituto de Pesca","volume":"36 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2022-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75409406","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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: 1