TY  - JOUR
T1  - Vitamin E Nutrition and Immune Response in Dairy Cows with Peripartum Health Problems
AU - , Arma an Colak AU - , Ozgur Kaynar AU - , Yunusemre Ozkanlar AU - , Fikrullah K sa AU - , Armagan Hayirli 
JO  - Journal of Animal and Veterinary Advances
VL  - 5
IS  - 10
SP  - 863
EP  - 872
PY  - 2006
DA  - 2001/08/19
SN  - 1680-5593
DO  - javaa.2006.863.872
UR  - https://makhillpublications.co/view-article.php?doi=javaa.2006.863.872
KW  - Peripartum cow
KW  -vitamin E
KW  -immune system
KW  -mastitis
KW  -uterine infection
KW  -ketosis
AB  - The periparturient period is characterized by negative energy balance because feed intake gradually decreases prior to parturition and increases at a slower rate than milk production. This is one of the contributing factors to occurrence of other peripartum period health problems including mammary gland and reproductive tract infections. Especially high-producing dairy cows are prone to ketosis and infectious diseases, which adversely affect profitability of dairying. To maintain plasma concentration above 3 µg  mL <SUP>-1</SUP> at parturition, vitamin E supplementation during the transition period benefits to immune system via improving neutrophil activity and consequently reduces risk for mastitis and retained placenta. Ketone bodies also impair immune function. However, improvement in immune function in cows with ketosis in response to vitamin E supplementation remains to be investigated.
ER  -