Changes in Core Temperature of Cyan-Shank Partridge Chickens Exposed to Continuously Increased Ambient Temperature at Different Relative Humidity Levels
(1) Background: This study aimed to investigate the changes in core temperature of Cyan-shank partridge chickens with continuously increased ambient temperature at different relative humidity (RH) levels. (2) Methods: Thirty birds were selected at the age of 35 days and randomly divided and housed i...
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MDPI AG
2025-03-01
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| author | Chen Wang Ketian Chen Haocong Xu Le Liu Longshen Liu Chunmei Li Yansen Li |
| author_facet | Chen Wang Ketian Chen Haocong Xu Le Liu Longshen Liu Chunmei Li Yansen Li |
| author_sort | Chen Wang |
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| description | (1) Background: This study aimed to investigate the changes in core temperature of Cyan-shank partridge chickens with continuously increased ambient temperature at different relative humidity (RH) levels. (2) Methods: Thirty birds were selected at the age of 35 days and randomly divided and housed in three artificial climate chambers. Each chamber was set at one of three different RH levels (50%, 65%, and 80%), and the ambient temperature was increased by 1.0 °C per 0.5 h from 24.0 to 34.0 °C. The core temperature was tested at 1.0 h intervals, and the ambient temperature in the chambers was recorded using mini temperature data loggers. Data were collected continuously for three days at the ages of 35, 42, and 49 days. The broken-line model (BLM) was used to calculate the inflection point temperature (IPT) and basal core temperature (constant). (3) Results: Both RH and age had no significant influence on the IPT. With increasing ambient temperature, the average IPT values of birds measured at the three ages were 26.52, 27.02, and 26.71 °C at the RH levels of 50%, 65%, and 80%, respectively. A significant downward trend in basal core temperature was observed as the birds aged from 35 to 42 days (<i>p</i> < 0.05). (4) Conclusions: the core temperature of the chicken gradually decreased as the age increased. During the hot summer months, it is better to keep the ambient temperature less than 26.5 °C to avoid the excessive increase in core temperature in Cyan-shank partridge chicken at the ages from 35 to 49 days. |
| format | Article |
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| spelling | doaj-art-5a0bc56a2bec4c27b5eb22362825219d2025-08-20T02:11:08ZengMDPI AGAnimals2076-26152025-03-0115682010.3390/ani15060820Changes in Core Temperature of Cyan-Shank Partridge Chickens Exposed to Continuously Increased Ambient Temperature at Different Relative Humidity LevelsChen Wang0Ketian Chen1Haocong Xu2Le Liu3Longshen Liu4Chunmei Li5Yansen Li6College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, ChinaCollege of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, ChinaCollege of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, ChinaCollege of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, ChinaCollege of Artificial Intelligence, Nanjing Agricultural University, Nanjing 210095, ChinaCollege of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, ChinaCollege of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China(1) Background: This study aimed to investigate the changes in core temperature of Cyan-shank partridge chickens with continuously increased ambient temperature at different relative humidity (RH) levels. (2) Methods: Thirty birds were selected at the age of 35 days and randomly divided and housed in three artificial climate chambers. Each chamber was set at one of three different RH levels (50%, 65%, and 80%), and the ambient temperature was increased by 1.0 °C per 0.5 h from 24.0 to 34.0 °C. The core temperature was tested at 1.0 h intervals, and the ambient temperature in the chambers was recorded using mini temperature data loggers. Data were collected continuously for three days at the ages of 35, 42, and 49 days. The broken-line model (BLM) was used to calculate the inflection point temperature (IPT) and basal core temperature (constant). (3) Results: Both RH and age had no significant influence on the IPT. With increasing ambient temperature, the average IPT values of birds measured at the three ages were 26.52, 27.02, and 26.71 °C at the RH levels of 50%, 65%, and 80%, respectively. A significant downward trend in basal core temperature was observed as the birds aged from 35 to 42 days (<i>p</i> < 0.05). (4) Conclusions: the core temperature of the chicken gradually decreased as the age increased. During the hot summer months, it is better to keep the ambient temperature less than 26.5 °C to avoid the excessive increase in core temperature in Cyan-shank partridge chicken at the ages from 35 to 49 days.https://www.mdpi.com/2076-2615/15/6/820Cyan-shank partridge chickensrelative humiditybody core temperatureinflection point temperatureages |
| spellingShingle | Chen Wang Ketian Chen Haocong Xu Le Liu Longshen Liu Chunmei Li Yansen Li Changes in Core Temperature of Cyan-Shank Partridge Chickens Exposed to Continuously Increased Ambient Temperature at Different Relative Humidity Levels Animals Cyan-shank partridge chickens relative humidity body core temperature inflection point temperature ages |
| title | Changes in Core Temperature of Cyan-Shank Partridge Chickens Exposed to Continuously Increased Ambient Temperature at Different Relative Humidity Levels |
| title_full | Changes in Core Temperature of Cyan-Shank Partridge Chickens Exposed to Continuously Increased Ambient Temperature at Different Relative Humidity Levels |
| title_fullStr | Changes in Core Temperature of Cyan-Shank Partridge Chickens Exposed to Continuously Increased Ambient Temperature at Different Relative Humidity Levels |
| title_full_unstemmed | Changes in Core Temperature of Cyan-Shank Partridge Chickens Exposed to Continuously Increased Ambient Temperature at Different Relative Humidity Levels |
| title_short | Changes in Core Temperature of Cyan-Shank Partridge Chickens Exposed to Continuously Increased Ambient Temperature at Different Relative Humidity Levels |
| title_sort | changes in core temperature of cyan shank partridge chickens exposed to continuously increased ambient temperature at different relative humidity levels |
| topic | Cyan-shank partridge chickens relative humidity body core temperature inflection point temperature ages |
| url | https://www.mdpi.com/2076-2615/15/6/820 |
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