Keeping all livestock indoors in winter was unavoidable in the temperate zone of Europe, but for most agricultural producers it posed a considerable challenge, for keeping livestock supplied through the cold season demanded not only sufficient production of nutritious animal feed or enough capital to buy it in, but also dry storage of hay, straw, and grain. Since financial and technical limitations meant that these conditions were often only met with difficulty, in general only a few large animals were kept for several years [2. 91–94]; [10. 145–155], giving rise to the notor…