Laboratory of Sustainable Animal Production and Biodiversity, Institute of Tropical Agriculture and Food Security, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia.
Department of Animal Science, Faculty of Agriculture, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia.
Trop Anim Health Prod. 2022 Oct 20;54(6):354. doi: 10.1007/s11250-022-03360-y.
This study was performed to investigate the effect of water shower spray on rectal temperature (RT), serum levels of corticosterone (CORT), heat shock protein (HSP) 70 and creatine kinase (CK) in broiler chickens road transported at different times of the day. A total of 320 male broiler chickens (35 days of age) were crated and subjected to either water shower spray (WS) for 10 min or no water shower (control). The WS and control broilers were then loaded into an open truck and transported either from 0900 to 1100 h (29.0 °C and 89.0% RH) (AM) or 1900 h to 2100 h (26.0 °C and 94.0% RH) (PM) with an average speed of 80 km/h. The CORT of AM birds were significantly reduced by WS, but the treatment had negligible influence on the PM group. Transportation during AM significantly elevated RT, CORT and HSP70 compared to the PM group. Water shower spraying of birds before transit significantly reduced RT and HSP70 compared to controls. Neither water shower treatment nor transportation time had a significant on CK and mortality rate of broilers. In conclusion, water shower spray is beneficial to alleviate the physiological stress response in road-transported broilers under the hot and humid tropical environment.
本研究旨在探讨在不同运输时段下，喷淋水对肉鸡直肠温度（RT）、血清皮质酮（CORT）、热休克蛋白 70（HSP70）和肌酸激酶（CK）水平的影响。将 320 只雄性肉鸡（35 日龄）装入笼中，进行 10 分钟喷淋水（WS）或不喷淋水（对照）处理。随后，将 WS 和对照肉鸡装入敞篷卡车中，以平均 80km/h 的速度，分别在上午 09:00 至 11:00（29.0°C 和 89.0%RH）（AM）或下午 19:00 至 21:00（26.0°C 和 94.0%RH）（PM）进行运输。AM 组的 CORT 经 WS 处理后显著降低，但对 PM 组影响较小。与 PM 组相比，AM 组运输时 RT、CORT 和 HSP70 显著升高。与对照组相比，运输前对肉鸡进行喷淋水处理可显著降低 RT 和 HSP70。无论是喷淋水处理还是运输时间，对 CK 和肉鸡死亡率均无显著影响。综上所述，在炎热潮湿的热带环境下，喷淋水对缓解热应激具有积极作用。
