Ketelaars E H
Tijdschr Diergeneeskd. 1975 Jul 1;100(13):709-13.
Modern intensive livestock husbandry constitutes an economically inevitable development essential to stock farmers. The decreasing profit margin per unit of produce is inherent in this development. As a result, the income of pig and poultry farmers is very sensitive to fluctuations in prices and, on the other hand, it is considerably affected by seemingly slight rises in cost. The systems of management adopted are therefore designed to keep down the fixed cost of labour and premises as much as possible and reduce the risk. This accounts for intensive livestock husbandry in its current form. This is illustrated in a number of examples. In view of the wide variety of systems within the branches of stock farming and because of the marked variations from year to year and the resulting differences in the importance of measures to be adopted, thorough preliminary studies will be required.
现代集约化畜牧业是养殖户在经济上不可避免的必然发展趋势。单位产品利润率下降是这一发展过程中固有的现象。因此,养猪户和家禽养殖户的收入对价格波动非常敏感,另一方面,看似微小的成本上升也会对其产生相当大的影响。因此所采用的管理系统旨在尽可能降低劳动力和场地的固定成本,并降低风险。这就形成了当前形式的集约化畜牧业。以下通过一些例子来说明。鉴于畜牧养殖各分支内的养殖系统种类繁多,且由于每年都有显著变化,以及由此导致的所采取措施的重要性存在差异,因此需要进行全面的初步研究。