Comparison of estrus detection techniques in dairy heifers

Detection of estrus was by twice daily heat checks, heat mount detectors, and pedometers. Changes of progesterone concentrations in blood plasma were monitored three times weekly. Method of detection did not affect observed cycle length. Efficiency of estrous cycle detection (as defined by changes o...

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Veröffentlicht in:	Journal of dairy science 1981-08, Vol.64 (8), p.1738-1741
Hauptverfasser:	Williams, W. F, Yver, D. R, Gross, T. S
Format:	Artikel
Sprache:	eng
Schlagworte:	Animals Breeding - methods Cattle Estrus Detection - methods Female
Online-Zugang:	Volltext
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