Restricted Feeding of Growing Pullets: 2. The Effect on Costs, Returns and Profits

Abstract

PERHAPS the most serious limitation of many reports on the effects of feed restriction on growing pullets is absence of appropriate data for interpreting the effects of both restricted and full-feeding programs in terms of costs and returns. It can be seen from data presented in the companion paper (Strain et al., 1965), that the effect of restricted feeding is to make partly negative and partly positive contributions to costs and returns. As far as we are aware, only the studies reported by Gowe et al. (1960, 1962), Fuller (1962), and Hollands and Gowe (1964), have presented sufficient data to permit of a reasonably accurate estimate of economic returns to be expected from restricted and full-fed groups of birds. In this paper; estimates of returns over feed (and chick) costs were made, the data having been derived from a series of experiments described in the companion paper (Strain et al,…