Itoh N, Moritsu Y, Taniyama H, Ichikawa S
Department of Veterinary Medicine, Rakuno Gakuen University, Hokkaido, Japan.
J Vet Med Sci. 1997 Mar;59(3):209-11. doi: 10.1292/jvms.59.209.
One-day-old broiler chickens were given commercial chicken starters during first 4 weeks of growth. The chickens were then divided into two groups: one group was fed commercial intensive growers (control feed), and the other group was fed commercial broiler finishers (high-nutrient feed). Body weights were calculated weekly. At eight weeks old, blood samples were collected and heart tissues were examined histopathologically. Significant increases in body weight as well as pathological findings in the heart muscle and an elevation of serum creation kinase (CK) were observed in chickens fed with broiler finisher. Histopathological changes in heart fiber resembled that of sudden death syndrome, and this heart damage was thought to be related to the increase of CK levels.
1日龄的肉鸡在生长的前4周喂食商业雏鸡饲料。然后将这些鸡分为两组:一组喂食商业育成鸡饲料(对照饲料),另一组喂食商业肉鸡后期饲料(高营养饲料)。每周计算体重。在8周龄时,采集血样并对心脏组织进行组织病理学检查。喂食肉鸡后期饲料的鸡体重显著增加,同时心肌出现病理变化,血清肌酸激酶(CK)升高。心脏纤维的组织病理学变化类似于猝死综合征,这种心脏损伤被认为与CK水平的升高有关。