Estimation of Rumen By-pass Rate of Chromium-methionine Chelates by Ruminal Bacteria Analysis
2005
Kim, C.H.; (Kangwon National University, Chuncheon, Republic of Korea) | Park, B.K. (Kangwon National University, Chuncheon, Republic of Korea) | Park, J.G. (Kangwon National University, Chuncheon, Republic of Korea) | Kim, H.S. (Kangwon National University, Chuncheon, Republic of Korea) | Sung, K.I. (Kangwon National University, Chuncheon, Republic of Korea) | Shin, J.S. (Kangwon National University, Chuncheon, Republic of Korea) | Ohh, S.J. (Kangwon National University, Chuncheon, Republic of Korea)
The study was designed to estimate the in vitro rumen by-pass rate of both chromium methionine chelate as an organic supplement and CrCl₃ as an inorganic supplement. Rumen by-pass rates of the supplements were evaluted by comparing ruminal metabolites in rumen fluid and Cr and methionine contents in the body of ruminal microorganism. For in vitro digestion examination, basic nutrients for ruminal microbes were supplied with 7g (DM) of feed, 2g of rice straw, and 2g of corn silage per each incubation jar. Three treatments including Control(no supplementation of Cr), T1 (1000 ppb supplementation of CrCl₃) and T2 (chromium methionine chelate supplementation equivalent to 1000 ppb of Cr content) were prepared with five replications per each treatment.
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