RESPONSE OF CHICKS TO THE FEEDING OF DIFFERENT RAPESEED OILS AND RAPESEED OIL FRACTIONS

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Abstract
Growth rates of chicks and efficiency of feed utilization were similar when the diet contained 4% of either rapeseed oil or corn oil in one experiment and when the diet contained 10% of either rapeseed oil or soybean oil in a second experiment. Gums from high or low erucic acid rapeseed at dietary levels of 4–5% resulted in growth rates and feed efficiency similar to those obtained with the oils. Acidulated soapstock and non-acidulated soapstock from high and low erucic acid rapeseed, fed in comparison with oils, gave favorable results for growth rate. The non-acidulated soapstocks, probably as a result of their 6% mineral content, reduced feed efficiency slightly. There was no mortality attributable to any of the oils or oil fractions.

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