Characterization of serum lysosomal enzymatic activities. I. Effect of dietary urea in dairy cows.
The experiment was carried out on ten Holstein dairy cattle fed on conventional concentrate as base diet for 15 days, then turned on unconventional concentrate diet supplemented with 3% urea (CM-U) for 45 days to study the effect of four lysosomal enzymes in both states. The N-acetyl-beta-glucosaminidase enzyme level reflected the highest value among other enzymes inspite of its significant drop in the serum after feeding cows on the unconventional ureated diet. Beta-galactosidase was the sole enzyme to rise significantly in the serum of cows during the unconventional ureated diet feeding. Acid phosphatase and alpha-galactosidase showed highly significant decreases due to the effect of the tested diet.
Abdalla
M A
MA
Department of Animal Medicine and Infectious Diseases, Faculty of Veterinary Medicine, Zagazig University, Egypt.
Abdel Gawad
S M
SM
Teleb
Z A
ZA
Shams el-Din
M M
MM
D000118:Acetylglucosaminidase / Q000097:blood; D000135:Acid Phosphatase / Q000097:blood; D000821:Animal Feed; D000818:Animals; D002417:Cattle / Q000378:metabolism*; D005260:Female; D008247:Lysosomes / Q000201:enzymology*; D014508:Urea / Q000008:administration & dosage*; D000519:alpha-Galactosidase / Q000097:blood; D001616:beta-Galactosidase / Q000097:blood
D014508:Urea; D000135:Acid Phosphatase; D000519:alpha-Galactosidase; D001616:beta-Galactosidase; D000118:Acetylglucosaminidase