Pre-pubertal measurements of the somatotrophic axis as predictors of milk production in Holstein–Friesian dairy cows

This study investigated possible relationships between measurements of the somatotrophic axis in pre-pubertal dairy calves and subsequent milk yields. Endogenous growth hormone (GH) release was measured through a fed and fasted period in fifty 6-month-old Holstein–Friesian heifers and they were then...

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Veröffentlicht in:	Domestic animal endocrinology 2006-07, Vol.31 (1), p.1-18
Hauptverfasser:	Taylor, V.J., Beever, D.E., Bryant, M.J., Wathes, D.C.
Format:	Artikel
Sprache:	eng
Schlagworte:	Animals blood glucose Blood Glucose - metabolism Cattle - blood Cattle - physiology dairy cows Dairy heifers Female Growth hormone Growth Hormone - blood Growth Hormone - secretion Growth hormone-releasing factor Growth Hormone-Releasing Hormone - pharmacology heifers Holstein hormone secretion insulin Insulin - blood Insulin-Like Growth Factor I - analysis Insulin-like growth factor-I Lactation - blood lactation number Male Milk - secretion milk composition milk energy output Milk yield prediction Predictive Value of Tests Pregnancy prepubertal females Progesterone - blood Regression Analysis somatoliberin somatotropin
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