5Besedovsky H O, Del Rey A. Immune-neuroendocrine interaction: facts and lypotheses [J]. Endocrine Rev,1996, 17 (1): 64-102.
6Malendowicz L K, Nussdorfer G G, Meneghelli V, et al. Effects of endothelin-1 on the rat pituitary-adrenocortical axis under basal and stressful conditions [J]. Endocrinal Res, 1997, 23(4) :349-364.
7Tsigos C, Chrousos G P. Hypothalamic-pituitary-advendal axis, neuroendocrine factors and stress[J].Psychoson Res, 2002, 53(4): 865-871.
8Redwine L, Snow S, Mills P, et al. Acute psychological stress: effects on chemotaxis and cellular adhesion molecule [J].Psychosom Med, 2003,65 : 598-603.
9Mitchell M,Kettlewell P J. Physiological stress and welfare of broiler chickens in transit: Solutions not problems[J]. Poul Sci, 1998,77 : 1803-1814.
10Cheng H W,Jefferson L. Different Behavioal and Physiological Responses in Two Genetic Lines of Laying Hens After Transportation[J]. Poul Sei, 2008,87 : 885-892.
9HALE H H, HEMBOLDT C F, PLASTRIDGE W N, et al. Bovine mastitis caused by a Mycoplasma species[J]. Cornell Veterinarian, 1962,52 : 582-591.
10GOURLAY R N, THOMAS L H, HOWARD C J. Pneumonia and arthritis in gnotobiotic calves following inoculation with Mycoplasrna agalactiae subsp, bovis[J]. Veterinary Record, 1976,98:506-507.