Comparison of enzyme activities in plasma and leukocytes in dairy and beef cattle.
Concentrations of plasma glucose, immunoreactive insulin (IRI) and free fatty acid (FFA) and activities of enzymes related to energy metabolism and lactate dehydrogenase (LDH) isoenzyme pattern in plasma and leukocytes were investigated in lactating Holstein cows (dairy cattle) and fattening Japanese Black Wagyu x Holstein steers (beef cattle). IRI concentrations and LDH and malate dehydrogenase (MDH) activities in the plasma of beef cattle were significantly higher than those in dairy cattle. The cytosolic ratio of MDH/LDH activity in the leukocytes of beef cattle was significantly higher than that of dairy cattle. These findings might be associated with the different energy metabolism between dairy and beef cattle.
Arai
Toshiro
T
Division of Veterinary Biochemistry, Department of Animal Science, Nippon Veterinary and Animal Science University, Masashino, Tokyo, Japan.
Inoue
Akira
A
Takeguchi
Akira
A
Mizutani
Hisashi
H
Shimoo
Megumi
M
Sako
Toshinori
T
Yoshimura
Itaru
I
Kimura
Nobuhiro
N
D000818:Animals; D001786:Blood Glucose; D002417:Cattle / Q000097:blood* / Q000378:metabolism; D004586:Electrophoresis; D004734:Energy Metabolism; D005230:Fatty Acids, Nonesterified / Q000097:blood; D007328:Insulin / Q000097:blood; D007770:L-Lactate Dehydrogenase / Q000378:metabolism; D007962:Leukocytes / Q000201:enzymology*
D001786:Blood Glucose; D005230:Fatty Acids, Nonesterified; D007328:Insulin; D007770:L-Lactate Dehydrogenase