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Pereira Cordeiro R, Aparecida de Campos Braga P, Souza Rocha MJ, Campos Chagas E, Reyes Reyes FG. Depletion study and estimation of the withdrawal period for albendazole in tambaqui ( Colossoma macropomum) parasitised by acanthocephalan ( Neoechinorhynchus buttnerae) treated with albendazole-containing feed. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2021; 38:1883-1896. [PMID: 34477497 DOI: 10.1080/19440049.2021.1954700] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
This study provides the first data related to albendazole (ABZ) and its main metabolites [albendazole sulphoxide (ABZSO), albendazole sulphone (ABZSO2), and albendazole-2-amino sulphone (ABZ-2-NH2-SO2)] residue depletion in tambaqui (Colossoma macropomum) parasitised by acanthocephalan (Neoechinorhynchus buttnerae). The ABZ withdrawal period was also calculated. The fish received a daily dose of 10 mg ABZ kg-1 body weight (b.w.) via medicated feed for 34 days. Samples of target tissue (muscle plus skin in natural proportions) were collected 24, 48, 72, 120, 168, 240, and 336 h after the end of ABZ administration. The quantitation of ABZ residues and its metabolites in the target tissue was performed using a validated ultra-high performance liquid chromatography-tandem mass spectrometry (UHPLC-MS/MS) analytical method. After treatment, ABZ in the target tissue was rapidly metabolised over time, and ABZSO was the most persistent metabolite and was shown to be at the highest levels in the target tissue. Considering the maximum residue limit (MRL) established by Codex Alimentarius in the muscle (100 μg kg-1, species not specified), a withdrawal period of 4 days (112 °C-day) was estimated for the total residue (sum of ABZ and its metabolite residues). Considering data reported in the literature and data obtained in this study, it is suggested that the total residue be considered as marker residue to be adopted for fish in the legislative framework.
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Affiliation(s)
- Rafaelle Pereira Cordeiro
- Department of Food Science, School of Food Engineering, University of Campinas -UNICAMP, Campinas, SP, Brazil
| | | | | | | | - Felix Guillermo Reyes Reyes
- Department of Food Science, School of Food Engineering, University of Campinas -UNICAMP, Campinas, SP, Brazil
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de Matos LV, de Oliveira MIB, de Oliveira Malta JC, da Silva GS. Digestive tube of an herbivorous fish (Rhytiodus microlepis) from the Amazonian floodplain lakes: A morphological and histochemical study. Anat Histol Embryol 2021; 50:897-907. [PMID: 34477252 DOI: 10.1111/ahe.12733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Revised: 08/18/2021] [Accepted: 08/23/2021] [Indexed: 11/29/2022]
Abstract
This study describes the morphology and histochemistry of the digestive tube of the herbivorous fish Rhytiodus microlepis, which is commonly found in the Amazonian floodplain lakes, Brazil. Thirty-eight fish were used in this study. The digestive tube was measured and dissected for anatomical description, and stained with (i) haematoxylin and eosin, for histological analyses; (ii) periodic acid-Schiff, for detected neutral mucins; and (iii) Alcian Blue (AB) pH 1.0 and 2.5 for acid and sulphated acid mucins. The oesophagus, with its secretory cells and taste buds, is adapted for lubrication of vegetable matter, resistance to friction and reception of stimuli. The stomach is U-shaped and rich in gastric glands, particularly in cardiac and fundic regions, which are adapted to receive large amounts of food, and promotes the digestion. The intestine comprises more than 70% of the digestive tube. All portions of the intestine, except the rectum, have the same pattern of mucosal folds, and the goblet cells reacted positively to all histochemical methods (PAS, AB 1.0 and 2.5), while rodlet cells reacted only to periodic acid-Schiff (PAS) staining. Neutral mucins and sulphated acid mucins predominated in the anterior portion of the intestine and a high concentration of carboxylated acid mucosubstances were present in the other portions. The rectum showed a strong reaction to all histochemical methods. The muscular layer of the intestine consists of three layers, which showed features presumably related to the rigid nature of the food. A simple squamous epithelium constitutes the serous layer over the entire length of the tube.
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Affiliation(s)
- Lorena Vieira de Matos
- Departamento de Morfologia, Instituto de Ciências Biológicas, Universidade Federal do Amazonas, Manaus, Brazil.,Laboratório de Parasitologia de Peixes, Instituto Nacional de Pesquisas da Amazônia, Manaus, Brazil
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De Felice E, Palladino A, Tardella FM, Giaquinto D, Barone CMA, Crasto A, Scocco P. A morphological, glycohistochemical and ultrastructural study on the stomach of adult Rainbow trout Oncorhynchus mykiss. THE EUROPEAN ZOOLOGICAL JOURNAL 2021. [DOI: 10.1080/24750263.2021.1881630] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
Affiliation(s)
- E. De Felice
- School of Biosciences and Veterinary Medicine, University of Camerino, Camerino, Italy
| | - A. Palladino
- Department of Agricultural Sciences, University Federico II of Naples, Portici, Italy
- Electron Microscopy Laboratory, Department of Agricultural Sciences, University Federico II of Naples, Portici, Italy
| | - F. M. Tardella
- School of Biosciences and Veterinary Medicine, University of Camerino, Camerino, Italy
| | - D. Giaquinto
- School of Biosciences and Veterinary Medicine, University of Camerino, Camerino, Italy
| | - C. M. A. Barone
- Department of Agricultural Sciences, University Federico II of Naples, Portici, Italy
| | - A. Crasto
- Department of Agricultural Sciences, University Federico II of Naples, Portici, Italy
- Electron Microscopy Laboratory, Department of Agricultural Sciences, University Federico II of Naples, Portici, Italy
| | - P. Scocco
- School of Biosciences and Veterinary Medicine, University of Camerino, Camerino, Italy
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Vidal MR, Ruiz TFR, Dos Santos DD, Gardinal MVB, de Jesus FL, Faccioli CK, Vicentini IBF, Vicentini CA. Morphological and histochemical characterisation of the mucosa of the digestive tract in matrinxã Brycon amazonicus (Teleostei: Characiformes). JOURNAL OF FISH BIOLOGY 2020; 96:251-260. [PMID: 31762020 DOI: 10.1111/jfb.14217] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Accepted: 11/22/2019] [Indexed: 06/10/2023]
Abstract
This study describes anatomical, histological and histochemical features of the digestive tract mucosal layer of the matrinxã Brycon amazonicus, an omnivorous freshwater fish endemic from the Amazon basin. This species presents short thick oesophagus with longitudinal folds, that allow the passage of large food items. The mucosa is lined with a stratified secretory epithelium rich in goblet cells that secrete neutral and acid mucins. The two mucin types provide different viscosity in anterior and posterior oesophagus related to the protective and lubricant functions, respectively. The stomach is a highly distensible Y-shaped saccular organ. Here, it is proposed that this anatomical shape plays an essential role in food storage when food availability is abundant. The stomach mucosa is composed of epithelial cells with intense neutral mucin secretion to protects against gastric juice. The intestine is slightly coiled and presents internally a complex pattern of transversal folds that increases the absorption surface and the retention time of food. Goblet cells in the intestine secrete acid and neutral mucins that lubricate the epithelium and aid in the digestive processes. In the rectum, an increase in goblet cells population occurs that may be related to better lubrication.
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Affiliation(s)
- Mateus R Vidal
- School of Sciences, Department of Biological Sciences, São Paulo State University (Unesp), São Paulo, Brazil
- Institute of Biosciences, Department of Morphology, São Paulo State University (Unesp), Botucatu, Brazil
| | - Thalles F R Ruiz
- School of Sciences, Department of Biological Sciences, São Paulo State University (Unesp), São Paulo, Brazil
| | - Diego D Dos Santos
- School of Sciences, Department of Biological Sciences, São Paulo State University (Unesp), São Paulo, Brazil
| | - Mario V B Gardinal
- Institute of Biosciences, Department of Zoology, São Paulo State University (Unesp), Botucatu, Brazil
| | - Fernando L de Jesus
- Institute of Biomedical Sciences, Department of Human Anatomy, Federal University of Uberlândia (UFU), Uberlândia, Brazil
| | - Claudemir K Faccioli
- Institute of Biomedical Sciences, Department of Human Anatomy, Federal University of Uberlândia (UFU), Uberlândia, Brazil
| | - Irene B F Vicentini
- School of Sciences, Department of Biological Sciences, São Paulo State University (Unesp), São Paulo, Brazil
- Aquaculture Center of Unesp, São Paulo State University (Unesp), Jaboticabal, Brazil
| | - Carlos A Vicentini
- School of Sciences, Department of Biological Sciences, São Paulo State University (Unesp), São Paulo, Brazil
- Aquaculture Center of Unesp, São Paulo State University (Unesp), Jaboticabal, Brazil
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