Aquatic Science, Animal Science and Zoology, Oceanography, Environmental Science
12
Scopus Publications
314
Scholar Citations
6
Scholar h-index
5
Scholar i10-index
Scopus Publications
Toxicity and antioxidant effects of the decoction of the leaf of guavira (Campomanesia guazumifolia) as a food additive for Geophagus pyrocephalus Marcos Paiva Scardua, Maria Ildilene da Silva, Antonio Cesar Godoy, Wesley Barbieri, Frederico Vasconcelos, Taline Baganha Stefanello Catelan, Claudia Andrea Lima Cardoso, Heriberto Gimênes, Dacley Hertes Neu, Claucia Aparecida Honorato Veterinary Research Communications, 2026 The use of plant-derived nutraceuticals in aquaculture has increased, including in ornamental species. Guavira ( Campomanesia guazumifolia ) is a native Cerrado plant with reported antioxidant and anti-inflammatory properties. This study evaluated the toxicity and functional effects of C. guazumifolia leaf decoction as a feed additive for Geophagus pyrocephalus . Acute toxicity assays were conducted using Artemia salina (1.5–1000 µg mL⁻¹) and juvenile fish (0.1–500 µg mL⁻¹), alongside a 30-day feeding trial with dietary inclusion levels of 0, 250, 500, 1000, and 2000 mg kg⁻¹. The decoction exhibited high toxicity, with LD₅₀ values of 23.29 µg mL⁻¹ for A. salina and 50.03 µg mL⁻¹ for G. pyrocephalus . In fish, mortality increased markedly at concentrations ≥ 100 µg mL⁻¹, accompanied by elevated plasma glucose and severe gill lesions, including epithelial hyperplasia, lamellar fusion, and necrosis. Despite this toxicity, dietary supplementation at 250 mg kg⁻¹ significantly enhanced muscle antioxidant activity, with superoxide dismutase (SOD) levels increasing by approximately 2.5-fold compared to the control ( p < 0.05), without affecting growth performance or survival. In contrast, higher inclusion levels (≥ 1000 mg kg⁻¹) were associated with reduced condition factor and increased hepatic alanine aminotransferase (ALT), indicating metabolic stress. In conclusion, C. guazumifolia leaf decoction presents a narrow safety margin, combining pronounced toxicity at relatively low concentrations with beneficial antioxidant effects at low dietary inclusion. The dose of 250 mg kg⁻¹ is suggested as a safe and functional level for G. pyrocephalus , highlighting the importance of dose optimization for its application in ornamental aquaculture.
The effects of the inclusion of jabuticaba peel flour on performance, metabolism, and its influence on the skin color of Carassius auratus Rebeca Maria Sousa, Mayara Schueroff Siqueira, Marcos Paiva Scardua, Tainá Avila Pinho, Andressa C. A. B. Casari, Sandriele G. C. Deboleto, Dacley Hertes Neu, Claucia Aparecida Honorato Tropical Animal Health and Production, 2026 This work aimed to evaluate the inclusion of jabuticaba peel flour (JPF) in skin color and productive performance, biochemical, blood, and enzymatic parameters of Carassius auratus. 72 fish (weight 9.67 ± 0.37 g, length 7.38 ± 0.18 cm) were distributed into four treatments (0.00; 1.00; 1.50 and 2.00% JPF), in a completely randomized design with three replications with six fish per box. After 60 days, to evaluate the performance of the fish. To assess the skin color of the fish, a portable photo colorimeter was used using the Hunter coordinate system, where the coordinates of L*, a*, and b*. Blood samples were taken for biochemical analysis regarding glucose, triglycerides, and cholesterol. The analysis of ALT and AST, albumin and triglycerides in liver tissue, and amylase, lipase, nonspecific protease, and alkaline phosphatase in the intestine. Results obtained showed that there was a significant difference about feed intake and specific growth rate with the inclusion of JPF. It was observed that fish fed with 1.00 and 1.50% JPF obtained an increase in brightness represented by the L coordinate and shades of yellow represented by the b coordinate. Glucose increased with 2.00% of JPF. AST activity was higher with 1.00% JPF and ALT was reduced with the inclusion of JPF, demonstrating an ability to protect against possible liver damage. The inclusion of JPF is effective at levels of up to 1.5% to increase the brightness of the skin of Carassius auratus.
A Dietary Blend of Synbiotic and Organic Acids has been Demonstrated to be Beneficial for Nile Tilapia Fingerlings Dacley Neu, Maria Laura Schossler Pereira, Lillian Brito Lins, Ana Paula Aparecida Wisenfad Dos Reis, Karen Maiuli De Oliveira Amorim, Daniel Ferreira, Marcos Paiva Scardua, Claucia Aparecida Honorato, Daniel de Oliveira, Antonio Cesar Godoy Aquaculture Fish and Fisheries, 2025 Zootechnical additives are widely used in animal diets to enhance health and performance throughout different production stages. This study evaluated the effects of a blend of synbiotic and organic acids on Nile tilapia fingerlings. The investigation assessed growth performance, enzyme activity, proximate composition, and tissue histology. A total of 160 fish (initial weight: 2.22 0.06 g) were assigned to five treatments in a randomised design with four replicates for 31 days, fed a 45% crude protein diet. The blend was incorporated into the feed via oil coating (2%) at dosages of 0.0 g kg (control), 2.50, 5.00, 7.50, and 10.0 g kg . Although the blend did not affect growth performance, it modified body composition and improved physiological health indicators. Fish fed 2.50 g kg showed higher moisture and lower protein and mineral content ( P 0.05). Digestive enzyme activity increased at 5.00 g kg , whilst antioxidant enzymes (SOD and CAT) were enhanced at 7.50 and 10.0 g kg ( P 0.05). These results suggest that higher blend levels (5.00–10.0 g kg ) strengthen metabolic and antioxidant responses, highlighting the blend's potential to improve fish physiological health and support sustainable aquaculture.
Production and Chemical Characterization of Silage from Saccharine Sorghum Fertirrigated with Sugarcane Vinasse Arlindo Fabrício Correia, Antonio Cesar Godoy, Jarred H. Oxford, Marcos Paiva Scardua, Paulo Sérgio Rabello de Oliveira, Nelson Fukumoto, Armin Feiden Recent Advances in Food Nutrition and Agriculture, 2025 Background: Distillery vinasse is one of the promising bio-fertilizers, as it contains significant amounts of essential chemical elements, allied with sorghum that is widely used in the diet of ruminant animals and has been considered as an alternative to the production of other cereals or forages. This study aimed to evaluate saccharin sorghum silage from fertilization with vinasse. Methods: The research was conducted using the BRS-511, CR-1339, and CR-1342 geno-types. The silage was held for 170 days after sowing, with experimental design in blocks with triple factorial (genotypes x fertilization x inoculation) totaling 54 installments. At 95 days, the silos were opened for sample collection and analysis bromatological analysis. Results: The results indicate the primary source of variation was genotype, characterizing them with different potentials in productivity and better results for BRS-511, CR-1339, and CR-1342. The bromatological results indicate good quality for CR-1339 and CR-1342 hybrids, however, better digestability for BRS-511. There was no observable difference between the factors of fertilization. The inoculation additive assists in the reduction of lignin appears to be high. PCA analysis showed differences between cultivars (BRS-511, CR-1339, and CR-1342) and fertili-zation. However, the PCAs showed the genotypes show similar results with conventional ferti-lization and sugarcane vinasse. Conclusion: The study reflected the possibility of producing sweet sorghum silage with soil sugarcane vinasse fertilization as fertilizer.
Hydroalcoholic rosela extract (Hibiscus sabdariffa L.) in thick-bush fish (Hyphessobrycon eques) feed Barbara Libanio da Cruz, Marcos Paiva Scardua, Rebeca Maria Sousa, Mayara Schueroff Siqueira, Heriberto Gimênes Junior, Henrique Momo Ziemniczak, Alzira Gabriela da Silva Pause, Paulo Henrique Braz, Claucia Aparecida Honorato Medicina Veterinaria Brazil, 2023 O objetivo deste estudo foi avaliar a inclusão do extrato hidroalcoólico de rosela (Hibiscus sabdariffa) em dietas do peixe Mato Grosso (Hyphessobrycon eques). Foram utilizados 120 peixes (0,51± 0,06 g), que foram distribuídos aleatoriamente em 12 aquários de polietileno de 20L, em sistema de recirculação de água, com a densidade de estocagem de 10 peixes por aquário. Os peixes foram alimentados por 21 dias com uma dieta (40,88% PB e 4374,8 Kcal kg-1), acrescida de extrato hidroalcoólico de rosela - EHR (controle; 0,12; 0,25 e 0,50 mg de EHR/kg de ração). A inclusão de concentração de 0,25 e 0,50 EHR/kg, promoveu uma melhora nos índices zootécnicos, comprimento padrão e eficiência alimentar. Os peixes apresentaram alteração de croma a*(tonalidades de verde e vermelho), entretanto, não houve aumento de intensidade em relação à luminosidade croma b* (tonalidades de azul e amarelo). A utilização de 0,25 e 0,50 EHR/kg refletiu em diminuição da atividade das enzimas AST e ALT. Observou-se o aumento da atividade catalase em concentrações com maiores índices de extratos hidroalcoólicos de rosela na dieta. O extrato hidroalcoólico de rosela é eficiente na alimentação de peixe Mato Grosso na concentração de 0,50 mg EHR/kg.
Growth, mortality and susceptibility of oyster crassostrea spp. To perkinsus spp. infection during on growing in northeast Brazil Marcos Paiva Scardua, Rogério Tubino Vianna, Sâmia Sousa Duarte, Natanael Dantas Farias, Maria Luíza Dias Correia, Helen Taynara Araújo dos Santos, Patricia Mirella da Silva Revista Brasileira De Parasitologia Veterinaria, 2017 Crassostrea rhizophorae and C. gasar oysters are cultivated in the northeast region. Perkinsus parasites infect bivalves, and their effects on oysters from tropical regions are poorly understood. This study evaluated the impact of Perkinsus infection on the productive traits of native oysters. Oysters were sampled bimonthly during 7 months, from July 2010 to February 2011, to evaluate growth rate, mortality and shell color patterns (white and dark-gray) (n = 500), and to determine the prevalence and intensity of Perkinsus (n = 152). Perkinsus and Crassostrea species were determined using molecular tools. Results showed that most dark-gray (90%, n = 20) and white (67%, n = 18) oysters were C. gasar and C. rhizophorae, respectively. Oysters showed a high growth rate and moderate cumulative mortality (44%). C. gasar oysters grew better and showed lower mortality and lower incidence of Perkinsus compared to C. rhizophorae. The mean prevalence of Perkinsus was moderate (48%), but the infection intensity was light (2.2). Perkinsosis affected very small oysters (19.4 mm). In conclusion, native oysters, especially C. gasar, have a great potential for culture, mortality is not associated with perkinsosis, and the shell color of oysters can be used to improve selection for spats with better performance.
Survey of pathologies in crassostrea gasar (Adanson, 1757) oysters from cultured and wild populations in the são francisco estuary, sergipe, Northeast Brazil Patricia Mirella Da Silva, Marcos Paiva Scardua, Cairé Barreto Vieira, Analee Cruz Alves, Christopher F. Dungan Journal of Shellfish Research, 2015 The production of native oysters Crassostrea rhizophorae and Crassostrea gasar is expanding in northeastern Brazil, where reports of bivalve pathology are scarce. Recently, Perkinsus marinus was detected for the first time infecting C. rhizophorae in the state of Paraíba, in northeastern Brazil. Thus, more information on factors affecting the health of oysters is needed, especially concerning the pathogens listed by the World Organisation for Animal Health (OIE). The current study evaluated the health status of wild and cultured C. gasar mangrove oysters from the estuary of the Rio São Francisco, Sergipe state, northeastern Brazil. Results show that C. gasar oysters cultivated in the Rio São Francisco estuary had a greater prevalence of diseases and pathogens than oysters from a natural population in the same estuary, including maladie du pied (shell disease), Rickettsia—like organisms in gills, Steinhausia sp. oocyte infections, and Polydora sp. valve infestations. Of the two OIE notifiable diseases investigated, perkinsosis occurred at variable levels of prevalence that were always greater among cultured oysters (50.8%) than wild oysters (25.8%), and the intensity was predominantly low, suggesting low mortality impact. Bonamiosis was not detected.
A dietary blend of prebiotic, probiotic, and organic acids has been demonstrated to be beneficial for Nile tilapia juveNiles APAW dos Reis, AC Godoy, L Lins-Taylor, MP Scardua, JGC Coneglian, ... Aquaculture Science and Management 3 (1), 4 , 2026 2026
Toxicity and antioxidant effects of the decoction of the leaf of guavira (Campomanesia guazumifolia) as a food additive for Geophagus pyrocephalus MP Scardua, MI da Silva, AC Godoy, W Barbieri, F Vasconcelos, ... Veterinary Research Communications 50 (4), 334 , 2026 2026
The effects of the inclusion of jabuticaba peel flour on performance, metabolism, and its influence on the skin color of Carassius auratus RM Sousa, MS Siqueira, MP Scardua, TA Pinho, ACAB Casari, ... Tropical Animal Health and Production 58 (2), 146 , 2026 2026 Citations: 1
Efeitos de bioativos nutricionais do cerrado brasileiro sobre parâmetros morfofisiológicas e tegumentares em peixes ornamentais MP Scardua Universidade Federal da Grande Dourados , 2025 2025
A Dietary Blend of Synbiotic and Organic Acids has been Demonstrated to be Beneficial for Nile Tilapia Fingerlings D Neu, MLS Pereira, LB Lins, APAWD Reis, KMDO Amorim, D Ferreira, ... Aquaculture, Fish and Fisheries 5 (6), e70138 , 2025 2025 Citations: 2
Diet Supplemented With Tribulus terrestris Improves Hepatoprotection and Oxidative Stress in Nile Tilapia ( Oreochromis niloticus ) Fingerlings DFR Oliveira, AC Godoy, MP Scardua, MZ Hassemer, V Lewandowski, ... Aquaculture, Fish and Fisheries 5 (4), e70098 , 2025 2025
Production and Chemical Characterization of Silage from Saccharine Sorghum Fertirrigated with Sugarcane Vinasse AF Correia, AC Godoy, JH Oxford, MP Scardua, PSR de Oliveira, ... Recent Advances in Food, Nutrition & Agriculture 16 (2), 206-214 , 2025 2025
Mitigation of cold stress in red female betta (Betta splendens) through dietary supplementation with annatto (Bixa orellana L.) oil extract CAH Larissa Selini Dorce, Márcia Valéria Silva do Couto, Weliton Vilhalba da ... Aquaculture International 33 (100) , 2025 2025 Citations: 3
Anesthesia using eugenol for two weight classes of Piaractus mesopotamicus: evaluation of induction time, recovery time, behavioral AC Godoy, L Fantini-Hoag, DFR Oliveira, ACV Ferreira, F Bittencourt, ... J Exp Agric Int 46 (11), 305-314 , 2024 2024 Citations: 1
Extrato Hidroalcoólico de Marigold (Tagetes erecta L.) potencialidades para o uso como aditivo alimentar para pequenos crustáceos Artêmia (Artemia franciscana) JAU Reges, AC Venâncio, LMA Conceição, MP Scardua, BO Schuquel, ... Anais do VIII Workshop de Pós-Graduação em Zootecnia e Ciência Animal do … , 2024 2024
Extrato aquoso e hidroalcoólico de urucum (Bixa orellana L.) em Artêmia (Artemia franciscana) LMA Conceição, JAU Reges, MP Scardua, ACV Ferreira, BO Schuque, ... Anais do VIII Workshop de Pós-Graduação em Zootecnia e Ciência Animal do … , 2024 2024
Extrato hidroalcoólico da farinha de jabuticaba (Myrciaria cauliflora (Mart.) O. Berg) sua utilização como aditivo nutricional para artêmia (Artemia franciscana) ACV Ferreira, JAU Reges, MPMP Scardua, LMA Conceição, ... Anais do VIII Workshop de Pós-Graduação em Zootecnia e Ciência Animal do … , 2024 2024
The role of phenylalanine in the fish pigmentation process: a review MP Scardua, SM Walker, AC Godoy, CA Honorato, DH Neu International Aquatic Research 16 (2), 101-111 , 2024 2024 Citations: 1
Aditivos na dieta de peixes com capacidade de modular o sistema digestivo: prebióticos probióticos e ácidos orgânicos-uma revisão APAW dos Reis, AC Godoy, CAH da Silva, MP Scardua, DD Ferreira, ... OBSERVATÓRIO DE LA ECONOMÍA LATINOAMERICANA 22 (5), e4927-e4927 , 2024 2024 Citations: 2
INCLUSÃO DE SIMBIÓTICOS E ÁCIDOS ORG NICOS EM DIETA PARA TILÁPIAS-DO-NILO FAPAW dosando Reis, CA Honorato, DD Ferreira, AC Godoy, ... Anais do VII Workshop de Pós-Graduação em Zootecnia e Ciência Animal do … , 2024 2024
O agronegócio da aquicultura ornamental: Aspectos da fisiologia adaptativa JAU Reges, ACV Ferreira, MP Scardua, LMA Conceição, MI da Silva, ... Vida Em Evolução: Explorando as Ciências Biológicas 2, 28-53 , 2024 2024 Citations: 1
Hydroalcoholic rosela extract (Hibiscus sabdariffa L.) in thick-bush fish (Hyphessobrycon eques) feed. BL da Cruz, MP Scardua, RM Sousa, MS Siqueira, HG Junior, ... 2023 Citations: 1
Extrato hidroalcoólico de rosella (Hibiscus sabdariffa l.) na alimentação do peixe mato grosso (Hyphessobrycon eques) BL Cruz Universidade Federal da Grande Dourados , 2023 2023 Citations: 1
Monitoramento, riscos e acidentes de trabalho com os trabalhadores rurais na aquicultura brasileira MP Scardua, APAW Reis, AC Godoy, DH Neu, RC Santos, CA Honorato Revista Observatorio de la economía latinoamericana 21 (11), 22826-22841 , 2023 2023
Hydroalcoholic extract of pitaya (Hylocereus guatemalensis) supplied in the diet for blue Betta splendens and its effects on fish pigmentation G PdC, AC Godoy, JH Oxford, MS Siqueira, H Gimênes-Junior, HA Abe, ... 2022
MOST CITED SCHOLAR PUBLICATIONS
Reproductive Performance of Different Sized Wild and Pond‐reared Penaeus paulensis Females RO Cavalli, MP Scardua, W Wasielesky Jr Journal of the World Aquaculture Society 28 (3), 260-267 , 1997 1997 Citations: 136
Two Perkinsus spp. infect Crassostrea gasar oysters from cultured and wild populations of the Rio São Francisco estuary, Sergipe, northeastern Brazil PM da Silva, MP Scardua, RT Vianna, RC Mendonça, CB Vieira, ... Journal of invertebrate pathology 119, 62-71 , 2014 2014 Citations: 61
Occurrence and histopathological effects of Monstrilla sp.(Copepoda: Monstrilloida) and other parasites in the brown mussel Perna perna from Brazil E Suárez-Morales, MP Scardua, PM Da Silva Journal of the Marine Biological Association of the United Kingdom 90 (5 … , 2010 2010 Citations: 49
Growth, mortality and susceptibility of oyster Crassostrea spp. to Perkinsus spp. infection during on growing in northeast Brazil MP Scardua, RT Vianna, SS Duarte, ND Farias, MLD Correia, ... Revista Brasileira de Parasitologia Veterinária 26, 401-410 , 2017 2017 Citations: 30
Survey of pathologies in Crassostrea gasar (Adanson, 1757) oysters from cultured and wild populations in the São Francisco Estuary, Sergipe, Northeast Brazil PM Da Silva, MP Scardua, CB Vieira, AC Alves, CF Dungan Journal of Shellfish Research 34 (2), 289-296 , 2015 2015 Citations: 18
Utilização de alimentadores do tipo bandeja no cultivo do camarão rosa Penaeus paulensis (Pérez-Farfante, 1967) em tanques redes MP Scardua Dissertação de Mestrado em Aqüicultura, Universidade Federal de Santa … , 1998 1998 Citations: 7
Mitigation of cold stress in red female betta (Betta splendens) through dietary supplementation with annatto (Bixa orellana L.) oil extract CAH Larissa Selini Dorce, Márcia Valéria Silva do Couto, Weliton Vilhalba da ... Aquaculture International 33 (100) , 2025 2025 Citations: 3
A Dietary Blend of Synbiotic and Organic Acids has been Demonstrated to be Beneficial for Nile Tilapia Fingerlings D Neu, MLS Pereira, LB Lins, APAWD Reis, KMDO Amorim, D Ferreira, ... Aquaculture, Fish and Fisheries 5 (6), e70138 , 2025 2025 Citations: 2
Aditivos na dieta de peixes com capacidade de modular o sistema digestivo: prebióticos probióticos e ácidos orgânicos-uma revisão APAW dos Reis, AC Godoy, CAH da Silva, MP Scardua, DD Ferreira, ... OBSERVATÓRIO DE LA ECONOMÍA LATINOAMERICANA 22 (5), e4927-e4927 , 2024 2024 Citations: 2
The effects of the inclusion of jabuticaba peel flour on performance, metabolism, and its influence on the skin color of Carassius auratus RM Sousa, MS Siqueira, MP Scardua, TA Pinho, ACAB Casari, ... Tropical Animal Health and Production 58 (2), 146 , 2026 2026 Citations: 1
Anesthesia using eugenol for two weight classes of Piaractus mesopotamicus: evaluation of induction time, recovery time, behavioral AC Godoy, L Fantini-Hoag, DFR Oliveira, ACV Ferreira, F Bittencourt, ... J Exp Agric Int 46 (11), 305-314 , 2024 2024 Citations: 1
The role of phenylalanine in the fish pigmentation process: a review MP Scardua, SM Walker, AC Godoy, CA Honorato, DH Neu International Aquatic Research 16 (2), 101-111 , 2024 2024 Citations: 1
O agronegócio da aquicultura ornamental: Aspectos da fisiologia adaptativa JAU Reges, ACV Ferreira, MP Scardua, LMA Conceição, MI da Silva, ... Vida Em Evolução: Explorando as Ciências Biológicas 2, 28-53 , 2024 2024 Citations: 1
Hydroalcoholic rosela extract (Hibiscus sabdariffa L.) in thick-bush fish (Hyphessobrycon eques) feed. BL da Cruz, MP Scardua, RM Sousa, MS Siqueira, HG Junior, ... 2023 Citations: 1
Extrato hidroalcoólico de rosella (Hibiscus sabdariffa l.) na alimentação do peixe mato grosso (Hyphessobrycon eques) BL Cruz Universidade Federal da Grande Dourados , 2023 2023 Citations: 1
A dietary blend of prebiotic, probiotic, and organic acids has been demonstrated to be beneficial for Nile tilapia juveNiles APAW dos Reis, AC Godoy, L Lins-Taylor, MP Scardua, JGC Coneglian, ... Aquaculture Science and Management 3 (1), 4 , 2026 2026
Toxicity and antioxidant effects of the decoction of the leaf of guavira (Campomanesia guazumifolia) as a food additive for Geophagus pyrocephalus MP Scardua, MI da Silva, AC Godoy, W Barbieri, F Vasconcelos, ... Veterinary Research Communications 50 (4), 334 , 2026 2026
Efeitos de bioativos nutricionais do cerrado brasileiro sobre parâmetros morfofisiológicas e tegumentares em peixes ornamentais MP Scardua Universidade Federal da Grande Dourados , 2025 2025
Diet Supplemented With Tribulus terrestris Improves Hepatoprotection and Oxidative Stress in Nile Tilapia ( Oreochromis niloticus ) Fingerlings DFR Oliveira, AC Godoy, MP Scardua, MZ Hassemer, V Lewandowski, ... Aquaculture, Fish and Fisheries 5 (4), e70098 , 2025 2025
Production and Chemical Characterization of Silage from Saccharine Sorghum Fertirrigated with Sugarcane Vinasse AF Correia, AC Godoy, JH Oxford, MP Scardua, PSR de Oliveira, ... Recent Advances in Food, Nutrition & Agriculture 16 (2), 206-214 , 2025 2025
