Use of Lactic Acid Bacteria During Pikeperch ( Sander lucioperca ) Larval Rearing.

Autor:	Yanes-Roca C; University of South Bohemia in Ceske Budejovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Zátiší 728, 389 25 Vodňany, Czech Republic., Leclercq E; Lallemand SAS, 19 rue des Briquetiers, 31702 Blagnac, France., Vesely L; University of South Bohemia in Ceske Budejovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Zátiší 728, 389 25 Vodňany, Czech Republic., Malinovskyi O; University of South Bohemia in Ceske Budejovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Zátiší 728, 389 25 Vodňany, Czech Republic., Policar T; University of South Bohemia in Ceske Budejovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Zátiší 728, 389 25 Vodňany, Czech Republic.
Jazyk:	angličtina
Zdroj:	Microorganisms [Microorganisms] 2020 Feb 11; Vol. 8 (2). Date of Electronic Publication: 2020 Feb 11.
DOI:	10.3390/microorganisms8020238
Abstrakt:	This trial tested the use of lactic acid bacteria (LAB) on pikeperch ( Sander lucioperca ) larvae during their first feeding. The trial included the use of two probiotic treatments and one control (no probiotics). Pikeperch larvae were exposed to LAB as follows: (1) the live feed (Treatment 1, live feed) or (2) via the live feed and the larval rearing water (Treatment 2, probiotic). Significant differences were found between the treatments in terms of total length (TL), myomere height (MH), overall survival, and the tolerance to a high salinity challenge. Larvae exposed to LAB via both the live feed and the rearing water had a significantly higher overall survival rate (85%) than the other two treatments at 21 dph. When both treatments were subjected to high salinity rates (18 parts per thousand (ppt)), both treatments exposed to LAB demonstrated higher survival rates than the control treatment (28% and 40% survival rate at 180 min for the live feed and probiotic treatments, respectively, as compared with a 100% mortality rate at 150 min for the control). At the same time, larvae exposed to the probiotic treatment had a significantly higher TL as compared to the control after 12 and 21 days post hatch (dph) (probiotic 7.13 ± 0.21 and 11.71 ± 1.1 mm, control 5.86 and 10.79 mm at 12 and 21 dph, respectively). The results suggest that the use of LAB in both the live feed and the rearing water has a positive effect on pikeperch larval quality by strengthening their resilience to stress conditions, as well as improving the growth and survival rates. Competing Interests: The authors declare no conflict of interest.
Databáze:	MEDLINE
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