Use of rapeseed and pea grain protein supplements for organic milk production
No hay miniatura disponible
Fecha
Título de la revista
ISSN de la revista
Título del volumen
Editor
Resumen
Descripción
In experiment 1 a duplicated 4 X 4 Latin square design was used in which 8 Finnish Ayrshire cows in mid-lactation were given 8 kg of oats and barley and grass/red clover silage ad libitum with or without (controls) commercial rapeseed meal (218 g/kg DM; RSM), crushed organic field pea (Pisum sativum L.) (452 g/kg DM; P) or a mixture of pea (321 g kg DM) and organic rapeseed (Brassica rapa L. oleifera subannua) (155 g/kg DM; PRS). Cows on P and PRS diets produced as much milk as cows on the RSM diet. Milk yield was higher but protein content lower with PRS diet than with diet P (P<less than>0.05). In experiment 2 a triplicated 3 X 3 Latin square design was used in which 9 cows were given 8 kg of a mixture of: (1) 395 g/kg oats, 395 g/kg barley and 210 g/kg commercial heat-moisture treated rapeseed cake (RSC); (2) (ORSC) consisted (g kg<sup(<minus>1)>) of 375 g/kg oats, 375 g/kg barley and 250 g/kg cold-pressed organic rapeseed cake (ORSC); or (3) 395 g/kg oats, 395 g/kg barley and 250 g/kg commercial heat-moisture treated rapeseed cake with additional rapeseed oil (0.38 kg) (RSCO). There was no dietary effect on the yield of energy-corrected milk. Milk yield was higher with RSCO diet than the other diets (P<less than>0.05).
Palabras clave
milk, peas, protein supplements, barley, brassica, cows, diet, milk yield, oats, pisum sativum, rapeseed oilmeal, rapeseed oil, silage, milk composition, milk fat yield, milk protein yield, cattle