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Comparative Feeding Value of Common Edible Fats as Measured by the Growth of Prematurely Weaned Pups, Guinea Pigs and Swine

Department of Nutrition, Macdonald College (McGill University), Quebec, Canada

In an experiment utilizing 108 puppies, 172 pigs and 266 guinea pigs weaned at 10, 14 and three days of age, respectively, butterfat was evaluated against a low-fat control diet and against 15 other edible animal and vegetable fats and oils fed as 20% by weight of the ration, the chief criteria being growth, voluntary feed intake, apparent digestibility and gain per 1000 digested Calories. Although some indications of a preference for rations containing butter were observed, no significant differences of importance could be established between any of the fats compared. These included corn, linseed, rapeseed, fish, soybean, cottonseed and coconut oils, the latter 4 oils in the hydrogenated form, lard, mixed tallow and beef tallow.

² Research associate. Present address: Merck and Co., Valleyfield, Que.

³ Graduate assistant.

Manuscript received 17 July 1959.