scholarly journals Egg incubation temperature differently affects female and male hatching dynamics and larval fitness in a leafhopper

2012 ◽  
Vol 2 (4) ◽  
pp. 732-739 ◽  
Author(s):  
Julien Chuche ◽  
Denis Thiéry
Keyword(s):  
Incubation Temperature ◽  
Egg Incubation

Organochlorines, perfluoroalkyl substances, mercury, and egg incubation temperature in an Arctic seabird: Insights from data loggers

2018 ◽  
Vol 37 (11) ◽  
pp. 2881-2894 ◽  
Author(s):  
Pierre Blévin ◽  
Scott A. Shaffer ◽  
Paco Bustamante ◽  
Frédéric Angelier ◽  
Baptiste Picard ◽  
...  
Keyword(s):  
Incubation Temperature ◽  
Perfluoroalkyl Substances ◽  
Egg Incubation ◽  
Data Loggers

scholarly journals Early Phenotype Programming in Birds by Temperature and Nutrition: A Mini-Review

2022 ◽  
Vol 2 ◽  
Author(s):  
Charlotte Andrieux ◽  
Angélique Petit ◽  
Anne Collin ◽  
Marianne Houssier ◽  
Sonia Métayer-Coustard ◽  
...  
Keyword(s):  
Molecular Mechanisms ◽  
Incubation Temperature ◽  
Temperature Tolerance ◽  
Environmental Cues ◽  
In Ovo ◽  
Methyl Donors ◽  
Beneficial Effects ◽  
Egg Incubation ◽  
And Performance

Early development is a critical period during which environmental influences can have a significant impact on the health, welfare, robustness and performance of livestock. In oviparous vertebrates, such as birds, embryonic development takes place entirely in the egg. This allows the effects of environmental cues to be studied directly on the developing embryo. Interestingly, beneficial effects have been identified in several studies, leading to innovative procedures to improve the phenotype of the animals in the long term. In this review, we discuss the effects of early temperature and dietary programming strategies that both show promising results, as well as their potential transgenerational effects. The timing, duration and intensity of these procedures are critical to ensure that they produce beneficial effects without affecting animal survival or final product quality. For example, cyclic increases in egg incubation temperature have been shown to improve temperature tolerance and promote muscular growth in chickens or fatty liver production in mule ducks. In ovo feeding has also been successfully used to enhance digestive tract maturation, optimize chick development and growth, and thus obtain higher quality chicks. In addition, changes in the nutritional availability of methyl donors, for example, was shown to influence offspring phenotype. The molecular mechanisms behind early phenotype programming are still under investigation and are probably epigenetic in nature as shown by recent work in chickens.

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.

scholarly journals Embryonic temperature influences juvenile temperature choice and growth rate in snapping turtles Chelydra serpentina.

1998 ◽  
Vol 201 (3) ◽  
pp. 439-449
Author(s):  
S O'Steen
Keyword(s):  
Growth Rate ◽  
Incubation Temperature ◽  
Chelydra Serpentina ◽  
Adult Males ◽  
Male And Female ◽  
Egg Incubation ◽  
Snapping Turtles ◽  
Behavioral Physiology ◽  
Incubation Temperatures ◽  
Embryonic Temperature

Snapping turtles (Chelydra serpentina) demonstrate temperature-dependent sex determination (TSD): intermediate egg incubation temperatures (23-27 degreesC) produce males, while extreme temperatures produce females. Snapping turtles are also sexually dimorphic: adult males are typically larger than females. Previous researchers hypothesized that male-producing egg temperatures enhanced the growth rate of juvenile turtles, resulting in the adult dimorphism and potentially providing an adaptive benefit for TSD. In reptiles, the choice of ambient temperature can also influence growth. I measured the effect of egg incubation temperature on juvenile growth rate and water temperature choice of C. serpentina. Eggs were incubated in the laboratory at 21.5, 24.5, 27.5 or 30.5 degreesC to produce both sexes, all males, both sexes or all females, respectively. Egg temperature was linearly and negatively correlated with growth rate of both male and female juveniles. Thus, growth was enhanced, but not maximized, by male-producing egg temperatures. Egg temperature was also negatively correlated with juvenile temperature choice such that, on average, turtles from 21.5 degreesC eggs selected 28 degreesC water, while turtles from 30.5 degreesC eggs chose 24.5 degreesC water. Additionally, these temperature choices were highly repeatable, even following a 6 month hibernation period at 7 degreesC. Thus, while male egg temperatures do not directly maximize growth, multiple effects of embryonic temperature may combine to create long-lasting differences in the behavioral physiology of male and female C. serpentina. Such differences could be important to the ecology and evolution of TSD.

scholarly journals Incubation environment impacts the social cognition of adult lizards

2017 ◽  
Vol 4 (11) ◽  
pp. 170742 ◽  
Author(s):  
Harry Siviter ◽  
D. Charles Deeming ◽  
M. F. T. van Giezen ◽  
Anna Wilkinson
Keyword(s):  
Social Cognition ◽  
Social Learning ◽  
Cognitive Abilities ◽  
Social Cognitive ◽  
Incubation Temperature ◽  
Gaze Following ◽  
Brain Anatomy ◽  
Long Term Effects ◽  
Egg Incubation ◽  
The Social

Recent work exploring the relationship between early environmental conditions and cognition has shown that incubation environment can influence both brain anatomy and performance in simple operant tasks in young lizards. It is currently unknown how it impacts other, potentially more sophisticated, cognitive processes. Social-cognitive abilities, such as gaze following and social learning, are thought to be highly adaptive as they provide a short-cut to acquiring new information. Here, we investigated whether egg incubation temperature influenced two aspects of social cognition, gaze following and social learning in adult reptiles ( Pogona vitticeps ). Incubation temperature did not influence the gaze following ability of the bearded dragons; however, lizards incubated at colder temperatures were quicker at learning a social task and faster at completing that task. These results are the first to show that egg incubation temperature influences the social cognitive abilities of an oviparous reptile species and that it does so differentially depending on the task. Further, the results show that the effect of incubation environment was not ephemeral but lasted long into adulthood. It could thus have potential long-term effects on fitness.

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