Digestive enzyme system of larvae of different freshwater teleosts and its differentiation during the initial phase of exogenous feeding
Activities of digestive enzymes and main histological characteristics of the intestine were investigated in larvae of three salmonid species (Coregonus maraena, C. atterensis, Thymallus thymallus), of burbot (Lota lota), and pikeperch (Sander lucioperca) at the onset of exogenous feeding (0 day degr...
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Czech Academy of Agricultural Sciences
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ftdoajarticles:oai:doaj.org/article:5cd782ef85a44f2eab1f7d61e2752070 2023-05-15T15:47:17+02:00 Digestive enzyme system of larvae of different freshwater teleosts and its differentiation during the initial phase of exogenous feeding Franz Lahnsteiner 2017-10-01T00:00:00Z https://doi.org/10.17221/25/2016-CJAS https://doaj.org/article/5cd782ef85a44f2eab1f7d61e2752070 EN eng Czech Academy of Agricultural Sciences https://cjas.agriculturejournals.cz/artkey/cjs-201710-0001_digestive-enzyme-system-of-larvae-of-different-freshwater-teleosts-and-its-differentiation-during-the-initial-p.php https://doaj.org/toc/1212-1819 https://doaj.org/toc/1805-9309 1212-1819 1805-9309 doi:10.17221/25/2016-CJAS https://doaj.org/article/5cd782ef85a44f2eab1f7d61e2752070 Czech Journal of Animal Science, Vol 62, Iss 10, Pp 403-416 (2017) digestive system larvae freshwater fish digestive enzymes histology Animal culture SF1-1100 article 2017 ftdoajarticles https://doi.org/10.17221/25/2016-CJAS 2023-02-26T01:34:54Z Activities of digestive enzymes and main histological characteristics of the intestine were investigated in larvae of three salmonid species (Coregonus maraena, C. atterensis, Thymallus thymallus), of burbot (Lota lota), and pikeperch (Sander lucioperca) at the onset of exogenous feeding (0 day degrees (°d)) and at 250°d thereafter. At the onset of exogenous feeding the activities of proteolytic, lipolytic, and carbohydrate splitting enzymes were detected in the intestines of all species. The enzymatic activities showed significant species specific differences indicating specializations in functionality and digestion ability. In C. atterensis and L. lota the activities of most enzymes were low in comparison to the other investigated species and therefore their digestive system was only poorly developed. In S. lucioperca it was moderately developed and in T. thymallus and C. maraena well-developed. After 250°d, the activities of the investigated enzymes changed in a very species specific way. Histologically, the intestines of the investigated species revealed no species specific differentiations at the onset of the first feeding with the exception of the absence of goblet cells in L. lota and C. atterensis. These differentiated after 250°d. Article in Journal/Newspaper Burbot Lota lota lota Directory of Open Access Journals: DOAJ Articles Czech Journal of Animal Science 62 10 403 416 |
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topic |
digestive system larvae freshwater fish digestive enzymes histology Animal culture SF1-1100 |
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digestive system larvae freshwater fish digestive enzymes histology Animal culture SF1-1100 Franz Lahnsteiner Digestive enzyme system of larvae of different freshwater teleosts and its differentiation during the initial phase of exogenous feeding |
topic_facet |
digestive system larvae freshwater fish digestive enzymes histology Animal culture SF1-1100 |
description |
Activities of digestive enzymes and main histological characteristics of the intestine were investigated in larvae of three salmonid species (Coregonus maraena, C. atterensis, Thymallus thymallus), of burbot (Lota lota), and pikeperch (Sander lucioperca) at the onset of exogenous feeding (0 day degrees (°d)) and at 250°d thereafter. At the onset of exogenous feeding the activities of proteolytic, lipolytic, and carbohydrate splitting enzymes were detected in the intestines of all species. The enzymatic activities showed significant species specific differences indicating specializations in functionality and digestion ability. In C. atterensis and L. lota the activities of most enzymes were low in comparison to the other investigated species and therefore their digestive system was only poorly developed. In S. lucioperca it was moderately developed and in T. thymallus and C. maraena well-developed. After 250°d, the activities of the investigated enzymes changed in a very species specific way. Histologically, the intestines of the investigated species revealed no species specific differentiations at the onset of the first feeding with the exception of the absence of goblet cells in L. lota and C. atterensis. These differentiated after 250°d. |
format |
Article in Journal/Newspaper |
author |
Franz Lahnsteiner |
author_facet |
Franz Lahnsteiner |
author_sort |
Franz Lahnsteiner |
title |
Digestive enzyme system of larvae of different freshwater teleosts and its differentiation during the initial phase of exogenous feeding |
title_short |
Digestive enzyme system of larvae of different freshwater teleosts and its differentiation during the initial phase of exogenous feeding |
title_full |
Digestive enzyme system of larvae of different freshwater teleosts and its differentiation during the initial phase of exogenous feeding |
title_fullStr |
Digestive enzyme system of larvae of different freshwater teleosts and its differentiation during the initial phase of exogenous feeding |
title_full_unstemmed |
Digestive enzyme system of larvae of different freshwater teleosts and its differentiation during the initial phase of exogenous feeding |
title_sort |
digestive enzyme system of larvae of different freshwater teleosts and its differentiation during the initial phase of exogenous feeding |
publisher |
Czech Academy of Agricultural Sciences |
publishDate |
2017 |
url |
https://doi.org/10.17221/25/2016-CJAS https://doaj.org/article/5cd782ef85a44f2eab1f7d61e2752070 |
genre |
Burbot Lota lota lota |
genre_facet |
Burbot Lota lota lota |
op_source |
Czech Journal of Animal Science, Vol 62, Iss 10, Pp 403-416 (2017) |
op_relation |
https://cjas.agriculturejournals.cz/artkey/cjs-201710-0001_digestive-enzyme-system-of-larvae-of-different-freshwater-teleosts-and-its-differentiation-during-the-initial-p.php https://doaj.org/toc/1212-1819 https://doaj.org/toc/1805-9309 1212-1819 1805-9309 doi:10.17221/25/2016-CJAS https://doaj.org/article/5cd782ef85a44f2eab1f7d61e2752070 |
op_doi |
https://doi.org/10.17221/25/2016-CJAS |
container_title |
Czech Journal of Animal Science |
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62 |
container_issue |
10 |
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403 |
op_container_end_page |
416 |
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1766382071399317504 |