Performance of holstein heifers reared on 100 or 115% of NRC requirements from 3 to 12 months of age and then switched to the opposite treatment

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dc.contributor.author Bortone, E. J.
dc.contributor.author Daccarett, M. G.
dc.contributor.author Morrill, J. L.
dc.contributor.author Stevenson, Jeffrey S.
dc.contributor.author Feyerherm, A. M.
dc.date.accessioned 2011-08-02T21:30:13Z
dc.date.available 2011-08-02T21:30:13Z
dc.date.issued 2011-08-02
dc.identifier.uri http://hdl.handle.net/2097/11962
dc.description.abstract Holstein heifers from the Kansas State University Dairy Teaching and Research Unit were used from 3 mo of age until 21 d before estimated date of calving. They were fed either 100 (control, C) or 115% (enhanced, E) of the 1989 National Research Council (NRC) requirements for major nutrients from 3 to 12 mo of age, then, until 21 d before freshening, the treatments were switched from 100 to 115% NRC (CE) or from 115 to 100% NRC (EC). At puberty, heifers had similar body weights (613, E vs 617, C) but heifers fed E were 1 month younger (11 vs 12 mo). Heifers fed the E diet were heavier and had larger heart girth at 12 mo of age than the group fed C. After switching, the group fed CE increased more in body weight, body length, wither height, and body condition than the group fed EC. en_US
dc.publisher Kansas Agricultural Experiment Station en_US
dc.relation.isPartOf Diary Day, 1991 en_US
dc.relation.isPartOf Kansas Agricultural Experiment Station contribution; no. 92-175-S en_US
dc.relation.isPartOf Report of progress (Kansas Agricultural Experiment Station); 640 en_US
dc.subject Dairy en_US
dc.subject Heifer en_US
dc.subject NRC en_US
dc.subject Switch en_US
dc.subject Puberty en_US
dc.subject Diet en_US
dc.title Performance of holstein heifers reared on 100 or 115% of NRC requirements from 3 to 12 months of age and then switched to the opposite treatment en_US
dc.type Conference paper en_US
dc.date.published 1991 en_US
dc.citation.epage 20 en_US
dc.citation.spage 17 en_US
dc.contributor.authoreid jmorrill en_US
dc.contributor.authoreid jss en_US

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