Serum free amino acid concentration in hepatic lipidosis of dairy cows in the periparturient period.
J Vet Med Sci
; 68(4): 393-6, 2006 Apr.
Article
en En
| MEDLINE
| ID: mdl-16679734
ABSTRACT
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 beta-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.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Enfermedades de los Bovinos
/
Hígado Graso
/
Aminoácidos
Límite:
Animals
/
Pregnancy
Idioma:
En
Revista:
J Vet Med Sci
Asunto de la revista:
MEDICINA VETERINARIA
Año:
2006
Tipo del documento:
Article
País de afiliación:
Japón