Effects of variable egg incubation temperatures on the embryonic development in Arctic charrSalvelinus alpinus

2015 ◽  
Vol 47 (12) ◽  
pp. 3753-3764 ◽  
Author(s):  
Henrik Jeuthe ◽  
Eva Brännäs ◽  
Jan Nilsson
Keyword(s):  
Embryonic Development ◽  
Egg Incubation ◽  
Incubation Temperatures

Effect of temperature during embryonic development and first feeding of Trichogaster leeri larvae

Zygote ◽  
2016 ◽  
Vol 24 (5) ◽  
pp. 733-741
Author(s):  
Samuel Louzada Pereira ◽  
Dalcio Ricardo de Andrade ◽  
Marcella Costa Radael ◽  
João Carlos Fosse Filho ◽  
Rafael Vieira de Azevedo ◽  
...  
Keyword(s):  
Embryonic Development ◽  
Water Temperature ◽  
Larval Development ◽  
Environmental Factor ◽  
Effect Of Temperature ◽  
Hatching Rate ◽  
Egg Incubation ◽  
First Feeding ◽  
Incubation Temperatures ◽  
Embryonic And Larval Development

SummaryTemperature is an environmental factor that influences the development of fish, and when changed abruptly can lead to high mortality. Some species of fish are influenced by this factor, exhibiting a longer time for embryonic development and time to first feeding. This study aims to evaluate the effect of water temperature on embryonic and larval development up to first feeding, to describe the time in hours post fertilization (hpf) of the emergence of different structures and to determine the best hatching rate and survival of animals under different treatments. Five different egg incubation temperatures were used (24, 26, 28, 30 or 32°C, respectively). The eggs were observed at regular intervals of 30 min up to 24 h, every 2 h until 48 h and every 4 h until the display of first feeding in all treatments. Embryonic development was longer for eggs incubated at 24°C and the best results for hatching rate and survival of spawning efficiency were at 28°C. We recommend that incubation of Trichogaster leeri eggs is carried out at 28°C up to the first feeding of larvae.

scholarly journals Dynamics of Structural Barriers and Innate Immune Components during Incubation of the Avian Egg: Critical Interplay between Autonomous Embryonic Development and Maternal Anticipation

2018 ◽  
Vol 11 (2) ◽  
pp. 111-124 ◽  
Author(s):  
Maxwell T. Hincke ◽  
Mylène Da Silva ◽  
Nicolas Guyot ◽  
Joël Gautron ◽  
Marc D. McKee ◽  
...  
Keyword(s):  
Embryonic Development ◽  
Innate Immune ◽  
Vitelline Membrane ◽  
Structural Barriers ◽  
Embryonic Tissues ◽  
Egg Incubation ◽  
Evolutionary Success ◽  
Protective Structures ◽  
Amniotic Membranes ◽  
Autonomous Development

The integrated innate immune features of the calcareous egg and its contents are a critical underpinning of the remarkable evolutionary success of the Aves clade. Beginning at the time of laying, the initial protective structures of the egg, i.e., the biomineralized eggshell, egg-white antimicrobial peptides, and vitelline membrane, are rapidly and dramatically altered during embryonic development. The embryo-generated extra-embryonic tissues (chorioallantoic/amniotic membranes, yolk sac, and associated chambers) are all critical to counteract degradation of primary egg defenses during development. With a focus on the chick embryo (Gallus gallus domesticus), this review describes the progressive transformation of egg innate immunity by embryo-generated structures and mechanisms over the 21-day course of egg incubation, and also discusses the critical interplay between autonomous development and maternal anticipation.

scholarly journals High air humidity is sufficient for successful egg incubation and early post‐embryonic development in the marbled crayfish ( Procambarus virginalis )

2019 ◽  
Vol 64 (9) ◽  
pp. 1603-1612 ◽  
Author(s):  
Wei Guo ◽  
Jan Kubec ◽  
Lukáš Veselý ◽  
Md Shakhawate Hossain ◽  
Miloš Buřič ◽  
...  
Keyword(s):  
Embryonic Development ◽  
Air Humidity ◽  
Egg Incubation ◽  
Marbled Crayfish

scholarly journals Incubation of Oryzias woworae Eggs at Different Temperature on Embryo Development and Hatching Performance

2021 ◽  
Vol 21 (2) ◽  
pp. 315
Author(s):  
Nisa Nafiyanti ◽  
Mustahal Mustahal ◽  
Mas Bayu Syamsunarno ◽  
Muh. Herjayanto
Keyword(s):  
Incubation Temperature ◽  
Economic Value ◽  
Fish Farming ◽  
Hatching Rate ◽  
Water Medium ◽  
Optimal Temperature ◽  
Egg Incubation ◽  
Hatching Time ◽  
Hatching Eggs ◽  
Incubation Temperatures

Oryzias woworae is one of Muna Island's endemic fish, Sulawesi, which needs to be developed in cultivation and can be used as ornamental fish with high economic value. However, information on fish farming is not yet well available, especially at egg incubation temperatures. This study aims to determine the optimal temperature of the incubation water medium for the hatching performance of O. woworae eggs. The study used experimental methods with the treatment of differences in egg incubation temperatures at 24-26°C (temperature fluctuations in the laboratory), 24°C, 28°C and 32°C. The research parameters were analyzed descriptively, namely embryogenesis, hatching time, and hatching rates. The results showed that differences in incubation temperature affected the embryogenesis of O. woworae eggs. The obtained fastest time for hatching eggs O. woworae at a temperature of 32°C with six days 5 hours 49 minutes and 100% hatching. The egg incubation temperature 24-26°C is the lowest hatching time and hatching rate, nine days 11 hours 38 minutes and 53.33%. The use of 32°C in the incubation medium is the optimal temperature to accelerate embryogenesis and the hatching rate of O. woworae eggs.

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