Expression Profile of Heat Shock Protein 70 in Indigenous Huainan Partridge Chicken Exposed to Low Temperature

摘要

It is clear that heat shock protein 70 (HSP70) is responsible for stressful conditions. However, the expression level and profile of HSP70 during cold stress are still unknown. In this study, the expression profile of HSP70 in the heart, liver, muscle and spleen of Huainan partridge chicken exposed to low temperature was investigated. HSP70 expression was showed tissue-dependent with highest expression in muscle, followed by liver and heart; conversely, there was no evidence of changes in spleen, where there were two expression peaks during cold stress, before 3 and after 72 h, respectively. The plasma creatine kinase (CK) activity exhibited a significant increase (PHSP70 turned out to be tissue-and time-dependent in muscle, liver and heart in broilers under cold stress exposure. The distinct expression of HSP70 suggested that high-energy supply and balance of CK activity might be responsible for the HSP70 high expression.