ACTA VETERINARIA ET ZOOTECHNICA SINICA ›› 2014, Vol. 45 ›› Issue (7): 1170-1174.doi: 10.11843/j.issn.0366-6964.2014.07.020

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Characteristics of Spleen Structure in Plateau Yak

KANG Xin-hua,CUI Yan*,HE Yan-yu   

  1.  (College of Veterinary Medicine,Gansu Agricultural University,Lanzhou 730070,China)
  • Received:2013-12-27 Online:2014-07-23 Published:2014-07-23

Abstract:

The developmental changes of structural characteristics of yak spleen were studied,in order to give a further discussion about the yak spleen.The anatomical,histological and stereology statistics methods were used to observe the histological structure of spleens in newborn and adult yak.The results showed that the structure of newborn yak spleen was hypoplasia,white pulp had no splenic nodule,only the periarteral lymphatic sheath (PALS) in spleen being observed.While the structure of adult yak spleen was completely developed,white pulp was composed of splenic nodule and periarteral lymphatic sheath (PALS).The splenic nodule appeared as three different shapes,the splenic nodule number per unit area was Ns=0.145•mm-2.White pulp relative area of newborn yak spleen was Aw=5.46%,while adult yak spleen was Aw= 8.82%,the differences between the two groups were extremely significant (P<0.01).The sinus wall structures were not observed through the electron microscopic.This study reported the developmental characteristics of yak spleens firstly,the yak spleen was nonsinusal.White pulp area in adult yak was greater than the newborn.

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