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Research Bulletin (Iowa Agriculture and Home Economics Experiment Station)

Abstract

Summary for Series V

High cream (butterfat) modification of cows' whole milk was found undesirable. Disastrous results followed the feeding of milk rich in fat. The pigs receiving this high fat milk all died. These results corroborated the work of others.

Sugar modification of cows' whole milk, while better than cream (butterfat) modification, was not advantageous.

Cows' whole milk appeared to be a splendid feed for young orphan pigs when fed in conjunction with shelled corn, meat meal tankage and block salt, self-fed, free-choice style.

Summary for Series VI

Straight whole raw milk appeared to hold its own in this test with the other milk preparations. The lot fed on pasteurized milk showed up especially well, which may have resulted partly because only one pig was left in this lot; he was a very good individual. The lot receiving milk (brought to the boiling point) likewise, had only one pig left at the end of the experiment. He was an especially good individual, and this fact was influential in building up the average for this lot. Lot IV, receiving milk (boiled five minutes) had two pigs at the end of the experiment which did not show up as well in all respects as Lot I.

Because one of the pigs in Lot IV became very lame and unthrifty at the close of the milk feeding period, we wonder whether the boiling may not have reduced the vitamin content of the milk, causing the lame condition.

Summary for Series VII

The addition of vitamin carriers, to the ration of whole milk, shelled corn, meat meal tankage and salt fed to orphan pigs was apparently attended with success. All the pigs receiving vitamin feeds showed the good effects of this supplementation. However, it cannot be definitely stated that the results were due entirely to the vitamins of the additions. The vitamin substances also carried proteins and minerals and these may have been factors in promoting the better results. The results obtained are suggestive.

While the orange juice fed pigs made a slightly greater gain and more economical utilization of feeds than the tomato juice fed pigs, this advantage was very slight. Since the tomato fed pigs were smoother in conformation and had stronger, straighter legs, we consider the tomato juice was slightly superior to the orange juice. However, ' the difference in quantity should be considered; the tomato juice was fed in three times the volume of orange juice.

The addition of one egg per pig daily to the basal check ration showed up advantageously. These pigs had fairly strong pasterns and straight legs, but were not as uniform in conformation as the others.

The feeding of wheat embryos was apparently successful. Since these culled out pigs were so much smaller and less promising at the start, results of the wheat germ feeding are encouraging.

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