Objective: To observe the effect of TDP radiation over acupoint on hemorheologica1 parameters before and after parturition in dairy cows for selecting an effective method to improve and enhance the adaptive capability of the organism under delivery stress.

Methods: Twenty healthy pregnant cows were randomly and evenly divided into radiation group and control group. In the radiation group, during the period of l0 - 3 days before parturition and l - 3 days after delivery "Baihui" (DU 20) and "Houhai" points were radiated by TDP radiation apparatus for 60 min every time, once daily. The radiation temperature at the central area of the irradiated acupoint area was controlled to be about 42°C. Anal temperature was detected before and after radiation. Blood -samples from the jugular vein were co1lected at 20, l5, l0, 5, 3, l day and l -4hr before parturition, l -4hr, l, 3, and l5 days after delivery. Hemorheological indexes including whole blood high shearing specific viscosity (ηb80s-l),whole blood low shearing sPecific viscosity (η b20s-l), plasma specific viscosity (n P ), packed cell vo1ume (pcv), whole blood low shearing relative viscosity (ηr), erythrocyte fragility index (Ri), erythrocyte aggregation index (AI), plasma glucose (Glu), TP and FG contents were determined.

Results: In comparison with control group, TDP radiation over the acupoint was capable of regulating ηb80s-l, ηb20s-l and ηp levels in a certain period before and after parturition, modulate Glu content in the delivery process, improving blood fluidity and RBC deformability reducing blood loss, etc. Raising the adaptive capability of the organism upon delivery stress.

Conclusion: Acupoint TDP radiation characterized by warmming stimulation and biological energy effect may produce a favoring influence on hemorheological parameters before and after parturition in dairy cows.

　　Wang Qinglan, Guo Kejun, Ne Jiajin
　　College of Veterinary Medicine, China Agricultural University, Beijing 1 00094, China