Lactation Response and Body Composition of Cows Receiving Somatotropin and Three Ratios of Forage to Concentrate

Ninety multiparous Holstein cows were used to determine the effect of ration energy density and bST on lactation performance and whole body chemical composition. Seventy-eight cows, averaging 43.6 d postpartum, were assigned for 168 d to TMR with forage:concentrate ratios of 40:60, 50:50, and 60:40...

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Veröffentlicht in:	Journal of dairy science 1991-09, Vol.74 (9), p.3095-3102
Hauptverfasser:	McGuffey, R.K., Basson, R.P., Spike, T.E.
Format:	Artikel
Sprache:	eng
Schlagworte:	Adipose Tissue - anatomy & histology Animal Feed Animals Biological and medical sciences body composition Body Composition - drug effects Body Water Cattle - anatomy & histology Cattle - physiology Dietary Proteins - administration & dosage Energy Intake Feed and pet food industries Female Food industries Fundamental and applied biological sciences. Psychology Growth Hormone - pharmacology Lactation - drug effects Lipids - analysis Milk - analysis Milk - secretion Milk Proteins - analysis Random Allocation Recombinant Proteins - pharmacology somatotropin
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