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Influence of cyanobacteria on water activity and dry matter of muscles in the common carp (Cyprinus carpio L.) and rainbow trout (Oncorhynchus mykiss W.).
Neuro Endocrinol Lett. 2012; 33 Suppl 3:120-3.NE

Abstract

OBJECTIVES

Cyanobacteria are studied from the viewpoint of the issue of risks to water supply, agriculture and recreational activities for a long time. Cyanobacteria produce a wide range of substances which can be toxic and can influence the safety and quality of fish products. The aim of this study was to determine whether the diet with the content of cyanobacteria can affect the water activity and the dry matter of fish muscle and whether this diet can contribute significantly to the shelf life of fish muscles.

METHODS

Common carp (Cyprinus carpio) and rainbow trout (Oncorhynchus mykiss) were used in this study. Both fish species were divided into two groups. The first group of fish was fed with feed with cyanobacteria (3% of dry matter), the second group with feed without cyanobacteria. The water activity and the dry matter were monitored immediately after sampling of the fish muscle on day 7, 14 and 21 (carp) or on day 10, 20 and 30 (rainbow trout) and seven days after every sampling and cold storage (6-8 °C).

RESULTS

Feed with the content of cyanobacteria significantly decreased the water activity in muscles of both fish species on day 21 (in carp) and on day 30 (in rainbow trout). The dry matter of fish muscle significantly increased on day 7 and 21 (in carp) and on day 10 and 30, but decreased on day 20 (in rainbow trout). The cold storage significantly influenced the dry matter only. While the dry matter was increased in the common carp (7 days of cold storage after sampling on days 14 and 21), the dry matter decreased in the rainbow trout (7 days of cold storage after sampling on day 10).

CONCLUSIONS

The decrease of water activity was found only after longer exposure in the both exposed fish species. The dry matter was influenced far greater and was mostly increased in the both exposed fish species.

Authors+Show Affiliations

Department of Veterinary Ecology and Environmental Protection, University of Veterinary and Pharmaceutical Sciences Brno, Czech Republic.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

23353854

Citation

Navratil, Lukas, et al. "Influence of Cyanobacteria On Water Activity and Dry Matter of Muscles in the Common Carp (Cyprinus Carpio L.) and Rainbow Trout (Oncorhynchus Mykiss W.)." Neuro Endocrinology Letters, vol. 33 Suppl 3, 2012, pp. 120-3.
Navratil L, Vlasek V, Langova J, et al. Influence of cyanobacteria on water activity and dry matter of muscles in the common carp (Cyprinus carpio L.) and rainbow trout (Oncorhynchus mykiss W.). Neuro Endocrinol Lett. 2012;33 Suppl 3:120-3.
Navratil, L., Vlasek, V., Langova, J., Palikova, M., Brabec, T., Mares, J., Kopp, R., Klima, Z., & Navratil, S. (2012). Influence of cyanobacteria on water activity and dry matter of muscles in the common carp (Cyprinus carpio L.) and rainbow trout (Oncorhynchus mykiss W.). Neuro Endocrinology Letters, 33 Suppl 3, 120-3.
Navratil L, et al. Influence of Cyanobacteria On Water Activity and Dry Matter of Muscles in the Common Carp (Cyprinus Carpio L.) and Rainbow Trout (Oncorhynchus Mykiss W.). Neuro Endocrinol Lett. 2012;33 Suppl 3:120-3. PubMed PMID: 23353854.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Influence of cyanobacteria on water activity and dry matter of muscles in the common carp (Cyprinus carpio L.) and rainbow trout (Oncorhynchus mykiss W.). AU - Navratil,Lukas, AU - Vlasek,Vaclav, AU - Langova,Jitka, AU - Palikova,Miroslava, AU - Brabec,Tomas, AU - Mares,Jan, AU - Kopp,Radovan, AU - Klima,Zdenek, AU - Navratil,Stanislav, PY - 2012/09/01/received PY - 2012/11/15/accepted PY - 2013/1/29/entrez PY - 2013/1/29/pubmed PY - 2013/4/12/medline SP - 120 EP - 3 JF - Neuro endocrinology letters JO - Neuro Endocrinol. Lett. VL - 33 Suppl 3 N2 - OBJECTIVES: Cyanobacteria are studied from the viewpoint of the issue of risks to water supply, agriculture and recreational activities for a long time. Cyanobacteria produce a wide range of substances which can be toxic and can influence the safety and quality of fish products. The aim of this study was to determine whether the diet with the content of cyanobacteria can affect the water activity and the dry matter of fish muscle and whether this diet can contribute significantly to the shelf life of fish muscles. METHODS: Common carp (Cyprinus carpio) and rainbow trout (Oncorhynchus mykiss) were used in this study. Both fish species were divided into two groups. The first group of fish was fed with feed with cyanobacteria (3% of dry matter), the second group with feed without cyanobacteria. The water activity and the dry matter were monitored immediately after sampling of the fish muscle on day 7, 14 and 21 (carp) or on day 10, 20 and 30 (rainbow trout) and seven days after every sampling and cold storage (6-8 °C). RESULTS: Feed with the content of cyanobacteria significantly decreased the water activity in muscles of both fish species on day 21 (in carp) and on day 30 (in rainbow trout). The dry matter of fish muscle significantly increased on day 7 and 21 (in carp) and on day 10 and 30, but decreased on day 20 (in rainbow trout). The cold storage significantly influenced the dry matter only. While the dry matter was increased in the common carp (7 days of cold storage after sampling on days 14 and 21), the dry matter decreased in the rainbow trout (7 days of cold storage after sampling on day 10). CONCLUSIONS: The decrease of water activity was found only after longer exposure in the both exposed fish species. The dry matter was influenced far greater and was mostly increased in the both exposed fish species. SN - 0172-780X UR - https://www.unboundmedicine.com/medline/citation/23353854/Influence_of_cyanobacteria_on_water_activity_and_dry_matter_of_muscles_in_the_common_carp__Cyprinus_carpio_L___and_rainbow_trout__Oncorhynchus_mykiss_W___ DB - PRIME DP - Unbound Medicine ER -