Growth of pigs fed cool whey at two ambient temperatures

Abstract

SUMMARY1. Two experiments have been performed to compare the performance of pigs given cool ‘whey’ (15°C) with that of pigs fed warm ‘whey’ (40°C). Pigs were penned individually and the ‘whey’ was reconstituted from concentrated materials.2. In both experiments pigs offered cool ‘whey’ grew at a slower rate and required more dry matter/kg live-weight gain than pigs offered warm ‘whey’; the differences in rate of gain were 11 % at 16°C air temperature in Experiment 1 and 5% at 22°C air temperature in Experiment 2.3. It was estimated that the ‘heat of warming’ for the cool ‘whey’ might have accounted for its entire effect on rate of gain.

Growth and backfat depth of pigs kept at a high temperature

“…The 'whey' was reconstituted from whey mother liquor, 40 % DM, and was fed at a temperature of approximately 42°C; further details of the diet and the method of feeding can be obtained from Holmes (1971). The 'whey' was reconstituted from whey mother liquor, 40 % DM, and was fed at a temperature of approximately 42°C; further details of the diet and the method of feeding can be obtained from Holmes (1971).…”