| Effect of bovine theileriosis on the growth hormone and insulin-like growth factor-I |
|
Byeong-kirl Baek, Sun-youn Byoun, John-wha Lee, Ho-ill Lee |
|
College of Veterinary Medicine, Chonbuk National University |
| 소의 theileriosis가 성장 hormone과 insulin-like growth factor-I에 미치는 영향 |
|
백병걸, 변선윤, 이존화, 이호일 |
|
전북대학교 수의과대학 |
|
|
| Abstract |
|
Bovine theileriosis caused by Theileria sergenti is the tick-borne intraery- throcytic piroplasmosis, that occurs in most regions of Korea. It results in severe economic losses on a farm caused by anemia, milk production loss, abortion and death. This study was undertaken to confirm the effects of the growth hormone and the insulin-like growth factor-I which are associated in the growth of cattle infected by T sergenti. The blood of one hundred and twenty ten-month Holstein was collected and the prepared blood smear was stained with acridine orange to investigate their parasitemia. And the hematological profiles were observed. According to the value of the hematocrit, they were categorized into four groups : Group 1 was under 20 percent, groups 2 and 3 were from over 21 to under 30 percent and from over 31 to under 35 percent and group 4 was over 36 percent. As the value of the hematocrit decreased, parasitemia(%) in erythrocytes was observed to increase(Y=-1.064X + 30.537, r=0.660). The amounts of the growth hormone and the insulin-like growth factor-I in the serum were measured by the radioimmunoassay. The growth hormone in serum of the group 1, group 2, group 3 and group 4 were observed as $0.238{pm}0.043nmol/l$, $0.21{pm}0.024nmol/l$, $0.366{pm}0.035nmol/l$ and $0.646{pm}0.223nmol/l$, respectively. The quantitative of the insulin-like growth factor-I in the same groups were observed also as $209.686{pm}18.94ng/ml$, $250.9{pm}12.609ng/ml$, $279.3{pm}8.883ng/ml$ and $365.9{pm}22.45ng/ml$, respectively. It can be concluded that the growth hormone and the insulin-like growth factor-I were observed to decrease in severe anemia due to theileriosis. |
| Key Words:
Theileria sergenti, Growth hormone, Insulin-like growth factor, anemia |
|
PDF Links
Full text via DOI
Download Citation
