title: Characterization of serum lysosomal enzymatic activities. I. Effect of dietary urea in dairy cows.
abstract: 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.
authors.affiliation: Department of Animal Medicine and Infectious Diseases, Faculty of Veterinary Medicine, Zagazig University, Egypt.
authors.forename: M A
authors.initials: MA
authors.lastname: Abdalla
authors.forename: S M
authors.initials: SM
authors.lastname: Abdel Gawad
authors.forename: Z A
authors.initials: ZA
authors.lastname: Teleb
authors.forename: M M
authors.initials: MM
authors.lastname: Shams el-Din
mesh_terms: 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
chemical_list: D014508:Urea; D000135:Acid Phosphatase; D000519:alpha-Galactosidase; D001616:beta-Galactosidase; D000118:Acetylglucosaminidase