Serum activities of tartrate-resistant acid phosphatase and bone specific alkaline phosphatase as indices of bone metabolism in the cow.
The correlation between the serum hydroxyproline concentration and serum activity levels of TRAP and BALP was examined in 41 cows. The correlated coefficient (r) was 0.6391 for TRAP and 0.3147 for BALP, respectively. Judging from the significant correlation to the serum hydroxyproline concentration, serum TRAP activity is an index for bone metabolism in cows. Serum TRAP activity was therefore measured in 205 healthy cows (2-9 years old) in order to observe the changes in bone resorption with aging and milk production. TRAP levels differed slightly between group A (< or =4 yrs) and B (5 yrs< or =) at the same stage of lactation. The activity levels rose slightly at the height of lactation stage and during the dry stage.
Department of Clinical Veterinary Medicine, Faculty of Agriculture, Iwate University, 3-18-8 Ueda, Morioka 020-8550, Japan.
Jun
J
Sato
Keiji
K
Okada
Satoshi
S
Fukuda
Reeko
R
Sato
Jun
J
Yasuda
Yoshihisa
Y
Naito
D000135:Acid Phosphatase / Q000097:blood* / Q000378:metabolism; D000375:Aging / Q000502:physiology; D000469:Alkaline Phosphatase / Q000097:blood* / Q000378:metabolism; D000818:Animals; D001862:Bone Resorption; D001842:Bone and Bones / Q000378:metabolism*; D002417:Cattle / Q000097:blood* / Q000378:metabolism*; D002418:Cattle Diseases / Q000097:blood / Q000175:diagnosis / Q000378:metabolism; D003612:Dairying; D005260:Female; D006909:Hydroxyproline / Q000097:blood* / Q000378:metabolism; D007527:Isoenzymes / Q000097:blood* / Q000378:metabolism; D007774:Lactation; D016015:Logistic Models; D008892:Milk / Q000737:chemistry; D010319:Parturient Paresis / Q000097:blood / Q000175:diagnosis / Q000378:metabolism; D011247:Pregnancy; D000071681:Tartrate-Resistant Acid Phosphatase
D007527:Isoenzymes; D000469:Alkaline Phosphatase; D000135:Acid Phosphatase; D000071681:Tartrate-Resistant Acid Phosphatase; D006909:Hydroxyproline