Biological Effects of Electric and Magnetic Fields on Productivity of Dairy Cows

Sixteen multiparous Holstein cows (weighing 600±50kg, in 184.8±52 d of lactation, and at 101.9±43 d of gestation) were confined to wooden metabolic cages and exposed to a vertical electric field of 10 kV/m and to a uniform horizontal magnetic field of 30 μT (microtesia). The trial was conducted as a...

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Veröffentlicht in:	Journal of dairy science 1996-09, Vol.79 (9), p.1549-1554
Hauptverfasser:	Burchard, J.F., Nguyen, D.H., Richard, L., Block, E.
Format:	Artikel
Sprache:	eng
Schlagworte:	alternating current Animal productions Animals Biological and medical sciences CAMPO ELECTRICO CAMPO MAGNETICO Carbon Dioxide - blood Cattle - physiology CHAMP ELECTRIQUE CHAMP MAGNETIQUE COMPOSICION APROXIMADA COMPOSITION GLOBALE CONTENIDO DE LIPIDOS CONTENIDO DE MATERIA SECA CONTENIDO PROTEICO CONTEO DE CELULAS SOMATICAS DIOXIDO DE CARBONO DIOXYDE DE CARBONE Eating electric field Electromagnetic Fields - adverse effects EPIPHYSE ESTEROIDES extremely low frequency Female Fundamental and applied biological sciences. Psychology GASES SANGUINEOS GAZ SANGUIN GESTACION GESTATION GLANDULA PINEAL GRASA DE LA LECHE Hydrocortisone - blood Hydrogen-Ion Concentration INGESTION DE PIENSOS LACTACION LACTATION LACTOSA LACTOSE magnetic field MATIERE GRASSE DU LAIT MELATONINA MELATONINE Milk - chemistry NUMERATION CELLULAIRE SOMATIQUE Oxygen - blood Partial Pressure PLASMA SANGUIN PLASMA SANGUINEO PRISE ALIMENTAIRE (ANIMAUX) PROGESTERONA PROGESTERONE Progesterone - blood PROTEINAS DE LA LECHE PROTEINE DU LAIT RENDEMENT LAITIER RENDIMIENTO LECHERO STEROIDE TENEUR EN LIPIDES TENEUR EN MATIERE SECHE TENEUR EN PROTEINES Terrestrial animal productions VACAS LECHERAS VACHE LAITIERE Vertebrates
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