The Influence of Vitamin B12 and Aureomycin Supplementation in the Ration on the Vitamin B12 Activity of Pork Muscle2
1954; Oxford University Press; Volume: 13; Issue: 2 Linguagem: Inglês
10.2527/jas1954.132332x
ISSN1544-7847
AutoresRobert Kelly, Robert W. Bray, Paul H. Phillips,
Tópico(s)Coccidia and coccidiosis research
ResumoThe results of the influence of vitamin B12 and aureomycin supplementation in the ration on the vitamin B12 activity of pork muscle have been investigated. The pigs which received a ration supplemented with vitamin B12 responded with an increased vitamin B12 activity of the muscle. In experiment I the feeding of aureomycin with or without supplements of B12 lowered the concentration of vitamin B12 in pork muscle except at medium protein level. In experiment II the depression of B12 deposition in the muscle tissue was again found in the lots receiving aureomycin alone, yet in this experiment the interaction of aureomycin and B12 was not present. The deposition of intramuscular fat under the conditions of these two experiments appears to be an inverse response to the level of protein fed rather than to treatment with vitamin B12 and antibiotic.
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