J 2022

Spawning Performance and Sex Steroid Levels in Female Pikeperch Sander lucioperca Treated with Poly(lactic-co-glycolic acid) Microparticles

KNOWLES, J., Jakub VYSLOUŽIL, T. POLICAR, S. MILLA, Martina HOLICKÁ et. al.

Základní údaje

Originální název

Spawning Performance and Sex Steroid Levels in Female Pikeperch Sander lucioperca Treated with Poly(lactic-co-glycolic acid) Microparticles

Autoři

KNOWLES, J. (garant), Jakub VYSLOUŽIL (203 Česká republika, domácí), T. POLICAR, S. MILLA, Martina HOLICKÁ (203 Česká republika, domácí) a P. PODHOREC

Vydání

ANIMALS, BASEL, MDPI, 2022, 2076-2615

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

30104 Pharmacology and pharmacy

Stát vydavatele

Švýcarsko

Utajení

není předmětem státního či obchodního tajemství

Odkazy

Impakt faktor

Impact factor: 3.000

Kód RIV

RIV/00216224:14160/22:00119771

Organizační jednotka

Farmaceutická fakulta

UT WoS

000749805300001

Klíčová slova anglicky

aquaculture; GnRHa; induced ovulation; reproductive dysfunction; sustained drug release

Štítky

Příznaky

Mezinárodní význam, Recenzováno
Změněno: 11. 5. 2023 13:42, JUDr. Sabina Krejčiříková

Anotace

V originále

Simple Summary Pikeperch Sander lucioperca is a promising candidate for intensive aquaculture. However, controlled reproduction has become the major bottleneck in pikeperch production. To improve and optimize its artificial reproduction, an effective method for hormone treatment is needed. The use of a poly(lactic-co-glycolic acid) microparticle-sustained-release system to administer gonadotropin-releasing hormone agonist to pikeperch resulted in acceptable reproductive output. Our results establish the potential of poly(lactic-co-glycolic acid) microparticle as a novel tool for hormone treatment in fish. Pikeperch Sander lucioperca is a piscivorous species considered a promising candidate for the diversification of intensive aquaculture. This study aimed to determine the effect of a sustained-release delivery system incorporating mammalian gonadotropin-releasing hormone agonist (mGnRHa) into poly(lactic-co-glycolic acid) (PLGA) microparticles on the sex steroid levels and aspects of artificial reproduction of pikeperch. Fish were divided into four groups and injected with 20 mu g mGnRHa/kg, 5-day release microparticles encapsulated with 5 mu g GnRHa/kg BW (PLGA 5), 20 mu g GnRHa/kg (PLGA 20), or 1 mL/kg 0.9% NaCl (control). Cumulative percentage ovulation was 100% in the PLGA 5 group, significantly higher than in other tested groups. No differences among groups were observed in latency or fecundity. The level of 11-ketotestosterone (11-KT) peaked at 40 h post-injection, and was sustained during ovulation, in all treated groups. The 17 beta-estradiol (E2) concentration increased in the mGnRHa-only group immediately after hormone injection, while both PLGA groups showed a reduction in E2 after injection, continuing to decrease until ovulation. A low dose of mGnRHa in PLGA microparticles significantly improves induction of ovulation and results in acceptable reproductive performance, which may positively affect pikeperch production under controlled conditions.

Návaznosti

QK1810221, projekt VaV
Název: Využití mikročástic jako nosičů hormonálně aktivních látek v řízené reprodukci ryb.
Investor: Ministerstvo zemědělství ČR, Využití mikročástic jako nosičů hormonálně aktivních látek v řízené reprodukci ryb.