[Concentrations of metabolites and hormones in the blood plasma of lactating dairy cows during treatment with recombinant bovine somatotropin (BST)].
Sixteen lactating dairy cows were submitted to six injections in a four-week interval of either 640 mg prolonged release bST or of 640 mg saline (control, n = 8). The bST-treated animals were pair fed to the control cows, which were fed according to requirements. Fourteen days after each injection, blood samples were derived and analysed for metabolites and hormones. Plasma contents averaged 0.16 mmol/l non esterified fatty acids (NEFA), 2.69 mmol/l glucose, 0.43 mmol/l beta-hydroxybutyrate, 0.024 mmol/l acetoacetate, 78.8 g/l protein, 4.6 mmol/l urea, 0.81 micrograms/l insulin, 44.4 ng/l thyroxine (T4) and 1.41 ng/l triiodothyronine (T3). The bST-application was without effect on the analysed plasma contents.
Windisch
W
W
Institut für Ernährungsphysiologie, Technischen Universität, München, Germany.
Kirchgessner
M
M
D020155:3-Hydroxybutyric Acid; D000090:Acetoacetates / Q000097:blood; D000818:Animals; D001786:Blood Glucose / Q000032:analysis; D001798:Blood Proteins / Q000032:analysis; D001806:Blood Urea Nitrogen; D002417:Cattle / Q000097:blood / Q000378:metabolism*; D005230:Fatty Acids, Nonesterified / Q000097:blood; D005260:Female; D013006:Growth Hormone / Q000008:administration & dosage / Q000494:pharmacology*; D006728:Hormones / Q000097:blood*; D006885:Hydroxybutyrates / Q000097:blood; D007328:Insulin / Q000097:blood; D007774:Lactation / Q000097:blood / Q000378:metabolism; D011994:Recombinant Proteins / Q000008:administration & dosage / Q000494:pharmacology; D013974:Thyroxine / Q000097:blood; D014284:Triiodothyronine / Q000097:blood
D000090:Acetoacetates; D001786:Blood Glucose; D001798:Blood Proteins; D005230:Fatty Acids, Nonesterified; D006728:Hormones; D006885:Hydroxybutyrates; D007328:Insulin; D011994:Recombinant Proteins; D014284:Triiodothyronine; D013006:Growth Hormone; D013974:Thyroxine; D020155:3-Hydroxybutyric Acid
Konzentrationen von Stoffwechselmetaboliten und Hormonen im Blutplasma laktierender Milchkühe bei behandlung mit rekombinantem bovinem Wachstumshormon (BST).