title: Effects of Lactation Stage and Individual Performance on Milk cis-9, trans-11 Conjugated Linoleic Acids Content in Dairy Cows.
abstract: The goal of this study was to evaluate the effects of lactation stage and individual performance on milk cis-9, trans-11 conjugated linoleic acid (CLA) content in dairy cows. In experiment 1, the milk cis-9, trans-11 CLA content from dairy cows in early (0.33±0.014%), middle (0.37±0.010%), and late stages (0.44±0.020%) showed significant differences (p<0.05); and the individual contents of the major fatty acids, especially cis-9, trans-11 CLA in cows of the same lactation were also variable. In the second experiment design as a validation test, our results once again showed that the individual contents of cis-9, trans-11 CLA were various, and a difference of about 2-fold (0.55% vs 0.95%) was observed, although the animals were offered same diet. These data demonstrated that lactation stage and individual performance have considerable effects on milk cis-9, trans-11 CLA contents.
authors: Research and Technology Center, Cargill Agri Purina, Seongnam 463-808, Korea .
authors: T
authors: T
authors: Wang
authors: Research and Technology Center, Cargill Agri Purina, Seongnam 463-808, Korea .
authors: J J
authors: JJ
authors: Oh
authors: Research and Technology Center, Cargill Agri Purina, Seongnam 463-808, Korea .
authors: J N
authors: JN
authors: Lim
authors: Research and Technology Center, Cargill Agri Purina, Seongnam 463-808, Korea .
authors: J E
authors: JE
authors: Hong
authors: Research and Technology Center, Cargill Agri Purina, Seongnam 463-808, Korea .
authors: J H
authors: JH
authors: Kim
authors: Research and Technology Center, Cargill Agri Purina, Seongnam 463-808, Korea .
authors: J H
authors: JH
authors: Kim
authors: Research and Technology Center, Cargill Agri Purina, Seongnam 463-808, Korea .
authors: H S
authors: HS
authors: Kang
authors: Laboratory of Animal Cell Biotechnology, Department of Agricultural Biotechnology, Seoul National University, Seoul 157-921, Korea .
authors: Y J
authors: YJ
authors: Choi
authors: Research and Technology Center, Cargill Agri Purina, Seongnam 463-808, Korea .
authors: H G
authors: HG
authors: Lee
keywords: Individual Performance; Lactation Stage; cis-9; trans-11 CLA