TY  - JOUR
T1  - Activities of Aspartate Aminotransferase, Alanine Aminotransferase, Gamma-Glutamyltransferase, Alkaline Phosphatase in Plasma of Postpartum Holstein Cows
AU - , BaoXiang He AU - Liu, Ping AU - , XianLing Yang AU - , XiaoLu Hou AU - , HaiYang Zhao AU - , YinHua Han AU - , Pei Nie AU - , HuiFang Deng AU - , Long Cheng 
JO  - Journal of Animal and Veterinary Advances
VL  - 11
IS  - 8
SP  - 1270
EP  - 1274
PY  - 2012
DA  - 2001/08/19
SN  - 1680-5593
DO  - javaa.2012.1270.1274
UR  - https://makhillpublications.co/view-article.php?doi=javaa.2012.1270.1274
KW  - Aspartate aminotransferase
KW  -alanine aminotransferase
KW  -gamma-glutamyltransferase
KW  -alkaline phosphatase
KW  -cows
KW  -China
AB  - Depressed appetite and reduced Dry Matter Intake (DMI) and feeding energy-dense diets for a long time around parturition of cows may lead to excessive lipid mobilization which causes the liver damage. This study was meant to determine the effects of postpartun enzymes metabolic status in Holstein cows. In this study, blood samples were during the whole experimental period, obtained from the jugular venepuncture from each animal on 1 week prepartum (week 1), days delivery (week 0) and 1st 9 weeks postpartum (week 1-9). They were analyzed for examining Aspartate aminotransferase (AST), Alanine Aminotransferase (ALT), Gamma-Glutamyltransferase (GGT), Alkaline Phosphatase (ALP) activity. The resultes showed a higher activity of AST which was determined in the 1-3 weeks than other’s. ALT activity indicated a statistically significant increase from the 5-7 weeks of lactation and activity in the 7th week postpartum periods significally reached to the peak. GGT activity in the antepartum 1 week until delivery day was significally lower in comparison with the first to reach the 9th weeks postpartum. ALP activity in the delivery day and 6-8 weeks significant increased in process. Therefore, the AST, ALT, GGT and ALP of enzyme activity which could be used significantly change in the blood plasma of Holstein.
ER  -