Effects of Embryonic Thermal Stimulation on Thermoregulatory Response of Crossbred Chickens During the First Week Post-Hatch

DOI

10.2991/978-94-6463-880-6_21How to use a DOI?

Keywords

body temperature; climate change; crossbred chickens; embryonic thermal stimulation

Abstract

Embryonic thermal stimulation has emerged as a promising approach to enhance heat tolerance in poultry. This study aimed to evaluate the effects of embryonic thermal stimulation on thermoregulatory response of crossbred chickens during the first week post-hatch. A total of 200 fertile eggs from a crossbreeding between Bangkok chickens and Lohmann Brown laying hens were randomly allocated into four experimental treatments and five replicates, with 10 eggs per replicate. The treatments consisted of a control (T0) and three embryonic thermal stimulation: T1, T2, and T3. Eggs in T0 were incubated under standard conditions at 37.5℃ and 55% relative humidity (RH) throughout the entire incubation period. Eggs in the embryonic thermal stimulation treatments were subjected to elevated incubation conditions of 39.5℃ and 65% RH for 6 hours daily from 09:00 up to 15:00. The embryonic thermal stimulation was applied during embryonic days (ED) of 10–18 for T1, ED 12–18 for T2, and ED 14–18 for T3. The hatched chicks were removed from the incubator after 516 hours of incubation and then reared for 7 days. No significant differences were observed for head and shank temperatures among the treatments. A significant difference was observed in cloacal temperature, where chickens from the T2 and T1 groups showed lower temperatures compared to T0, while the T3 group exhibited intermediate values. Breast temperature differed significantly among treatments, with T2 showing the lower values as compared to T0, T1, and T3. This study highlights the significant role of embryonic thermal stimulation on thermoregulatory response of crossbred chickens during the first week post-hatch. Thermal stimulation applied during embryonic days 12–18 was particularly effective, as it contributed to lower body temperatures, indicating a potential enhancement of thermoregulatory response in crossbred chickens.

Copyright

© 2025 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - Adelina Ari Hamiyanti
AU  - Edhy Sudjarwo
AU  - Faizal Andri
PY  - 2025
DA  - 2025/10/31
TI  - Effects of Embryonic Thermal Stimulation on Thermoregulatory Response of Crossbred Chickens During the First Week Post-Hatch
BT  - Proceedings of the 11th International Conference of Innovation in Animal Science (ICIAS 2024)
PB  - Atlantis Press
SP  - 191
EP  - 198
SN  - 2468-5747
UR  - https://doi.org/10.2991/978-94-6463-880-6_21
DO  - 10.2991/978-94-6463-880-6_21
ID  - Hamiyanti2025
ER  -