In respect of the spread of foot - and - mouth disease through burying pig carcasses, the acid and heat released from decaying pig carcasses may inactivate the foot - and - mouth disease virus, thus burying of pig carcasses may not necessarily lead to the spread of the disease
關于因埋葬豬屍以致傳播口
蹄病一事，豬屍在腐化過程中所釋放的熱能和
酸液，可對口
蹄病病毒起滅活作用，所以埋葬豬屍未必會導致口
蹄病的蔓延。
Tcdd influence the activity of diverse hormones, hormone receptors, mitogens, and other biological response modifiers and these interactions undoubtedly play an important role in the toxicity of these response. retinoic acid ( ra ) is ramification of vitamin a, having extensive biological effect on controlling conformation genesis, proliferation, differentiation, growth, metabolism of kinds of tissues and cells and stabilization of internal environment
第一部分igfs家族成分在維甲酸誘導馬蹄內翻足畸形中的調控機制目的：維甲酸（ retinoicacid ， ra ）類物質是維生素a的衍生物，在調控多種組織和細胞的形態發生、增殖分化、生長發育、代謝及維持內環境的穩定等方面具有廣泛的生物學活性。
