Effect of thermal management on vitellogenesis and maturation in indoor-reared pikeperch (Sander lucioperca)
Апстракт
The present study aimed to assess the effects of thermal manipulation on the vitellogenesis and final oocyte maturation (FOM) in pikeperch. Two groups of fish were stocked in two separate tanks of the climate chamber. One group was stocked at 10-month age (THERMAL), while the other was continually kept under stable photothermal conditions until 19-month-age (CONTROL) and then transferred to a climate chamber. The progress of vitellogenesis was assessed via evaluation of the oocyte diameter at the mid- and late-autumn phases, and the gonadosomatic index (GSI) at the late-autumn phase. Finally, females from the CONTROL group were hormonally stimulated before (WARMING) and after (STABLE) increase of the temperature from wintering to spawning, and the FOM progress, ovulation and plasma levels of 17 α, 20β dihydroxy progesterone (DHP) were assessed. Significantly larger oocytes at the mid-autumn phase (878.8 ± 40.1 μm vs 836.5 ± 46.5 μm) as well as the GSI at the end of the autumn phase (10....5 ± 1.7% vs 7.6 ± 1.1%) were noticed in THERMAL fish. Significantly faster FOM was seen in fish under the WARMING post-stimulation regime, and these fish had higher DHP levels at the moment of hormonal stimulation (5.4 ± 1.4 ng/ml vs 3.8 ± 1.2 ng/ml). According to the obtained results, it appears that photothermal induction of fish at a younger stage might have a positive impact on the first spawning, while the WARMING thermal regime seems to be more efficient in stimulating the FOM in fish upon first wintering.
Кључне речи:
pawning induction / fully controlled environment / oocyte growth / percids / final oocyte maturationИзвор:
Czech Journal of Animal Science, 2024, 69, 1, 18-28Издавач:
- Czech Academy of Agricultural Sciences
Институција/група
Institut za molekularnu genetiku i genetičko inženjerstvoTY - JOUR AU - Ljubobratović, Uroš AU - Ardó, László AU - Fazekas, Georgina AU - Horváth, Zoltán AU - Lukić, Jovanka PY - 2024 UR - https://imagine.imgge.bg.ac.rs/handle/123456789/2312 AB - The present study aimed to assess the effects of thermal manipulation on the vitellogenesis and final oocyte maturation (FOM) in pikeperch. Two groups of fish were stocked in two separate tanks of the climate chamber. One group was stocked at 10-month age (THERMAL), while the other was continually kept under stable photothermal conditions until 19-month-age (CONTROL) and then transferred to a climate chamber. The progress of vitellogenesis was assessed via evaluation of the oocyte diameter at the mid- and late-autumn phases, and the gonadosomatic index (GSI) at the late-autumn phase. Finally, females from the CONTROL group were hormonally stimulated before (WARMING) and after (STABLE) increase of the temperature from wintering to spawning, and the FOM progress, ovulation and plasma levels of 17 α, 20β dihydroxy progesterone (DHP) were assessed. Significantly larger oocytes at the mid-autumn phase (878.8 ± 40.1 μm vs 836.5 ± 46.5 μm) as well as the GSI at the end of the autumn phase (10.5 ± 1.7% vs 7.6 ± 1.1%) were noticed in THERMAL fish. Significantly faster FOM was seen in fish under the WARMING post-stimulation regime, and these fish had higher DHP levels at the moment of hormonal stimulation (5.4 ± 1.4 ng/ml vs 3.8 ± 1.2 ng/ml). According to the obtained results, it appears that photothermal induction of fish at a younger stage might have a positive impact on the first spawning, while the WARMING thermal regime seems to be more efficient in stimulating the FOM in fish upon first wintering. PB - Czech Academy of Agricultural Sciences T2 - Czech Journal of Animal Science T1 - Effect of thermal management on vitellogenesis and maturation in indoor-reared pikeperch (Sander lucioperca) EP - 28 IS - 1 SP - 18 VL - 69 DO - 10.17221/136/2023-CJAS ER -
@article{ author = "Ljubobratović, Uroš and Ardó, László and Fazekas, Georgina and Horváth, Zoltán and Lukić, Jovanka", year = "2024", abstract = "The present study aimed to assess the effects of thermal manipulation on the vitellogenesis and final oocyte maturation (FOM) in pikeperch. Two groups of fish were stocked in two separate tanks of the climate chamber. One group was stocked at 10-month age (THERMAL), while the other was continually kept under stable photothermal conditions until 19-month-age (CONTROL) and then transferred to a climate chamber. The progress of vitellogenesis was assessed via evaluation of the oocyte diameter at the mid- and late-autumn phases, and the gonadosomatic index (GSI) at the late-autumn phase. Finally, females from the CONTROL group were hormonally stimulated before (WARMING) and after (STABLE) increase of the temperature from wintering to spawning, and the FOM progress, ovulation and plasma levels of 17 α, 20β dihydroxy progesterone (DHP) were assessed. Significantly larger oocytes at the mid-autumn phase (878.8 ± 40.1 μm vs 836.5 ± 46.5 μm) as well as the GSI at the end of the autumn phase (10.5 ± 1.7% vs 7.6 ± 1.1%) were noticed in THERMAL fish. Significantly faster FOM was seen in fish under the WARMING post-stimulation regime, and these fish had higher DHP levels at the moment of hormonal stimulation (5.4 ± 1.4 ng/ml vs 3.8 ± 1.2 ng/ml). According to the obtained results, it appears that photothermal induction of fish at a younger stage might have a positive impact on the first spawning, while the WARMING thermal regime seems to be more efficient in stimulating the FOM in fish upon first wintering.", publisher = "Czech Academy of Agricultural Sciences", journal = "Czech Journal of Animal Science", title = "Effect of thermal management on vitellogenesis and maturation in indoor-reared pikeperch (Sander lucioperca)", pages = "28-18", number = "1", volume = "69", doi = "10.17221/136/2023-CJAS" }
Ljubobratović, U., Ardó, L., Fazekas, G., Horváth, Z.,& Lukić, J.. (2024). Effect of thermal management on vitellogenesis and maturation in indoor-reared pikeperch (Sander lucioperca). in Czech Journal of Animal Science Czech Academy of Agricultural Sciences., 69(1), 18-28. https://doi.org/10.17221/136/2023-CJAS
Ljubobratović U, Ardó L, Fazekas G, Horváth Z, Lukić J. Effect of thermal management on vitellogenesis and maturation in indoor-reared pikeperch (Sander lucioperca). in Czech Journal of Animal Science. 2024;69(1):18-28. doi:10.17221/136/2023-CJAS .
Ljubobratović, Uroš, Ardó, László, Fazekas, Georgina, Horváth, Zoltán, Lukić, Jovanka, "Effect of thermal management on vitellogenesis and maturation in indoor-reared pikeperch (Sander lucioperca)" in Czech Journal of Animal Science, 69, no. 1 (2024):18-28, https://doi.org/10.17221/136/2023-CJAS . .