Effects of limited roughage feeding of sheep on ewe performance, economical aspects and behaviour

alimentation animal performance behaviour body weight brebis cold zones comportamiento comportement concentrates dosage effects economic analysis ensilado ensilage (produit) ewes feeding forraje grosero fourrage grossier hiver invierno meat yield noruega norway oveja performance animale peso corporal piensos concentrados poids corporel raciones ration rations rendement en viande restricted feeding roughage silage winter zona fria zone froide