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High eggshell temperatures during incubation decrease growth performance and increase the incidence of ascites in broiler chickens.
High eggshell temperatures (EST; ≥38.9°C) during the second half of incubation are known to decrease the body and organ development of broiler hatchlings. In particular, relative heart weights areExpand
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Effect of relative humidity during incubation at a set eggshell temperature and brooding temperature posthatch on embryonic mortality and chick quality.
Previous studies have shown that RH during incubation of chicken eggs influences water loss from the egg and embryonic mortality. In those studies, eggshell temperatures (EST) were not monitored orExpand
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Temperature and CO2 during the hatching phase. I. Effects on chick quality and organ development.
The objective of this study was to investigate the effect of eggshell temperature (EST) and carbon dioxide (CO2) concentration during only the hatching phase on embryonic development and chickExpand
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Temperature and CO2 during the hatching phase. II. Effects on chicken embryo physiology.
The objective of this study was to investigate the effect of eggshell temperature (EST) and carbon dioxide concentration during only the hatching phase on physiological characteristics of embryos andExpand
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Light-dark rhythms during incubation of broiler chicken embryos and their effects on embryonic and post hatch leg bone development
There are indications that lighting schedules applied during incubation can affect leg health at hatching and during rearing. The current experiment studied effects of lighting schedule: continuousExpand
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Temperature during the last week of incubation. I. Effects on hatching pattern and broiler chicken embryonic organ development.
We investigated the effects of an eggshell temperature (EST) of 35.6, 36.7, 37.8, and 38.9°C applied from d of incubation (E) 15, E17, and E19 on hatching pattern and embryonic organ development. AExpand
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Effect of eggshell temperature throughout incubation on broiler hatchling leg bone development.
Leg problems in broiler chickens may partly be prevented by providing optimal circumstances for skeletal development during incubation. One of the factors demonstrated to affect bone development isExpand
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Lighting schedule and dimming period in early life: consequences for broiler chicken leg bone development.
Prolonged (>20 h) light periods during grow-out of broiler chickens have been shown to increase the occurrence of skeletal abnormalities, but the effects of early life light-dark schedules are notExpand
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Temperature during the last week of incubation. III. Effects on chicken embryo physiology
&NA; We investigated effects of eggshell temperature (EST) of 35.6, 36.7, 37.8, or 38.9°C applied from d of incubation (E) 15, E17, or E19 onward on chicken embryo physiology. A total of 2,850Expand
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Temperature during the last week of incubation. II. Effects on first week broiler development and performance.
Little is known about applying various eggshell temperatures (EST) during the last week of incubation. In particular, the effect of an EST below 37.8°C during the last week of incubation is poorlyExpand
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