Relative value of Vitamin A and carotenoids of alfalfa meal and of corn in supplying Vitamin A requirements of swine for reproduction.

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dc.contributor.author Parrish, D.B.
dc.contributor.author Aubel, C.E.
dc.date.accessioned 2011-12-05T21:07:54Z
dc.date.available 2011-12-05T21:07:54Z
dc.date.issued 2011-12-05
dc.identifier.uri http://hdl.handle.net/2097/13219
dc.description.abstract Swine commonly, obtain vitamin A from feed in the form of the provitamins- carotene and cryptoxanthin-of alfalfa and yellow corn. Swine are able to convert these provitamins to vitamin A, probably in their intestinal walls. Some commercial swine feeds contain true vitamin A, especially feeds recommended for young pigs. Nearly all the information available on the relative effectiveness of the forms of provitamin A in natural feedstuffs to supply vitamin A requirements of swine was obtained on young growing pigs. The requirements for and metabolism of, vitamin A may differ in growing pigs and sows. A study of this problem, therefore, was undertaken. Duroc gilts were placed in dry lot late in the fall. Feeding of experimental rations was begun one month before the gilts were bred. The experimental diets were composed of white corn, soybean oil meal, brewer's yeast, skimmllk powder, iodized salt, bone meal, limestone, and vitamins. The amount of various vitamin A supplements that each gilt received daily is shown for the various experiments in Tables 26, 27, and 28. en_US
dc.publisher Kansas Agricultural Experiment Station en_US
dc.relation.isPartOf 1954-1955 Progress Reports en_US
dc.relation.isPartOf Circular (Kansas Agricultural Experiment Station): 320 en_US
dc.subject Swine en_US
dc.subject Vitamin A en_US
dc.subject Carotenoids en_US
dc.subject Alfalfa meal en_US
dc.subject Reproduction en_US
dc.title Relative value of Vitamin A and carotenoids of alfalfa meal and of corn in supplying Vitamin A requirements of swine for reproduction. en_US
dc.type Conference paper en_US
dc.date.published 1955 en_US
dc.citation.epage 32 en_US
dc.citation.spage 29 en_US
dc.description.conference 42nd Annual Livestock Feeders’ Day. Kansas State University, Manhattan, KS, May 7, 1955 en_US


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