Preparation and Immunological Activities of Transfer Factor from the Spleen of Pig Immunized with Porcine Reproductive and Respiratory Syndrome Attenuated-live Virus Vaccine
GUO Hai-yong, YUAN Hong-xing, SUN Tai-ran, CAO Jing, SONG Qin-ye, LI Tan-qing, LU Ji-cheng
ACTA VETERINARIA ET ZOOTECHNICA SINICA . 2018, (7): 1467 -1474 .  DOI: 10.11843/j.issn.0366-6964.2018.07.016