Influence of L-carnitine on litter characteristics from gilts harvested at day 40, 55, and 70 of gestation

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dc.contributor.author Brown, K.R.
dc.contributor.author Johnson, B.J.
dc.contributor.author Tokach, Michael D.
dc.contributor.author Minton, J. Ernest
dc.contributor.author Brazle, A.E.
dc.contributor.author Burkey, T.E.
dc.contributor.author Groesbeck, C.N.
dc.contributor.author Neill, C.R.
dc.contributor.author Schneider, J.D.
dc.contributor.author Woodworth, J.C.
dc.contributor.author Goodband, Robert D.
dc.contributor.author Nelssen, Jim L.
dc.contributor.author Dritz, Steven S.
dc.date.accessioned 2009-11-02T22:09:19Z
dc.date.available 2009-11-02T22:09:19Z
dc.date.issued 2009-11-02T22:09:19Z
dc.identifier.uri http://hdl.handle.net/2097/2065
dc.description Swine research, 2005 is known as Swine day, 2005 en
dc.description.abstract A total of 59 gilts were used to determine the effects of supplemental L-carnitine on reproductive performance. Experimental treatments were arranged in a 2 × 3 factorial with main effects of L-carnitine (0 or 50 ppm) and day of gestation (40, 55, or 70). All gilts received a constant feed allowance of 3.86 lb/day and a top-dress containing either 0 or 88 mg of L-carnitine, starting on the first day of breeding and continuing until the day of harvest. Total litter size, total litter weight, and crown-to-rump length of fetuses were not different (P>0.10) between treatments at any gestation length. By d 70 of gestation, average fetus weight was heavier (P = 0.06) for fetuses from gilts fed L-carnitine, compared with fetuses from gilts fed the control diet. In addition, at d 70, fetal insulin-like growth factor- II (IGF-II) concentrations were lower (P = 0.09) for fetuses from gilts fed L-carnitine than for fetuses from gilts fed the control diet. Feeding L-carnitine may have decreased fetal IGF-II, therefore increasing cell proliferation and delaying cell differentiation. These results show that providing supplemental Lcarnitine to gestating gilts has beneficial effects on average fetal weight, possibly observed because of its ability to reduce fetal IGF-II concentrations. en_US
dc.publisher Kansas State University. Agricultural Experiment Station and Cooperative Extension Service en_US
dc.relation.isPartOf Swine day, 2005 en_US
dc.relation.isPartOf Summary Publication of Report of Progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service); 964 en_US
dc.relation.isPartOf Kansas Agricultural Experiment Station contribution; no. 06-63-S en_US
dc.subject Fetus en_US
dc.subject Gestation en_US
dc.subject Gilts en_US
dc.subject IGF-II en_US
dc.subject L-carnitine en_US
dc.subject Swine en_US
dc.title Influence of L-carnitine on litter characteristics from gilts harvested at day 40, 55, and 70 of gestation en_US
dc.type Conference paper en_US
dc.date.published 2005 en_US
dc.citation.epage 23 en_US
dc.citation.spage 18 en_US
dc.contributor.authoreid goodband en_US
dc.contributor.authoreid mtokach en_US
dc.contributor.authoreid dritz en_US
dc.contributor.authoreid jnelssen en_US

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