Serum Free Amino Acid Concentration in Hepatic Lipidosis of Dairy Cows in the Periparturient Period

Journal of Veterinary Medical Science

Seiichi KAWAMURA¹  Ken-ichi SHIBANO² 

[1] Internal Medicine of Large Animals, Department of Veterinary Clinical Sciences, School of Veterinary Medicine and Animal Sciences, Kitasato University;Hata Veterinary Clinical Center, Hyogo Prefectural Federation of Agricultural Mutual Aid Associations

关键词: dairy cow;    fatty liver;    free amino acid;   

DOI  :  10.1292/jvms.68.393

学科分类：兽医学

来源: Japanese Society of Veterinary Science

【 摘 要 】

References(14)Cited-By(7)Blood samples were taken from eight multiparous cows at a dairy farm on eight occasions between the prepartum period and peak lactation to study the serum concentrations of amino acids and biochemical constituents. The cows were classified as having either severe hepatic lipidosis (HL) or non-hepatic lipidosis (non-HL) according to their clinical condition after calving and changes in serum biochemical parameters. The serum concentrations of β-hydroxybutyric acid were higher in the HL group than in the non-HL group (ANOVA: p<0.01). The serum concentrations of methionine (Met), phenylalanine, and arginine were significantly different between the two groups (ANOVA: p<0.05). In particular, the Met levels were significantly low for 14 days after calving in the HL group (p<0.05), although Met levels in the HL group tended to be lower than the values in the non-HL group until 30 days after calving, starting 14 days before calving. The results suggest that an insufficiency of Met during the periparturient period is related to the development of hepatic lipidosis.

【 授权许可】

Unknown