Comparison of bovine transfer factor and Micotil®: effects on health and performance of receiving heifers

dc.citation.epage58en_US
dc.citation.spage55en_US
dc.contributor.authorMontgomery, Sean P.
dc.contributor.authorGreenquist, M.A.
dc.contributor.authorSindt, J.J.
dc.contributor.authorMiller, W.F.
dc.contributor.authorPike, J.N.
dc.contributor.authorGood, E.J.
dc.contributor.authorLoe, E.R.
dc.contributor.authorSulpizio, M.J.
dc.contributor.authorKessen, T.J.
dc.contributor.authorDrouillard, James S.
dc.contributor.authoreidjdrouillen_US
dc.date.accessioned2010-08-03T17:51:53Z
dc.date.available2010-08-03T17:51:53Z
dc.date.issued2010-08-03T17:51:53Z
dc.date.published2004en_US
dc.description.abstractTransfer factors are antigen-specific products of T lymphocytes that are capable of transferring delayed-type hypersensitivity and cell-mediated immunity. We evaluated bovine transfer factor (TF) for use in receiving cattle. Crossbred beef heifers (n = 665) initially weighing 495 lb were used to determine the effects of TF on the health and performance of beef cattle during a 36-day receiving period. Heifers were processed within 24 hours after arrival. Treatments were subcutaneous injection with 1.5 ml of Micotil®/100 lb of body weight or oral administration of 700 mg of TF isolated from bovine colostrum. Heifers given TF during initial processing received an additional 700 mg/day of TF in the diet on days 2 through 5. The percentage of heifers treated at least one, two, or three times for bovine respiratory disease (BRD) was greater (P<0.01) for heifers given TF than for heifers given Micotil (72.5 vs. 47.1; 31.5 vs. 14.7; and 18.0 vs. 4.2, respectively). There were no differences between TF and Micotil with respect to dry matter intake, weight gain, or gain efficiency of heifers. Subsequent in vitro fermentations indicated that TF protein is readily degraded by ruminal microbes. Oral administration of TF was not as effective as Micotil injection in decreasing BRD in receiving cattle.en_US
dc.description.conferenceCattlemen's Day, 2004, Kansas State University, Manhattan, KS, March 5, 2004en_US
dc.identifier.urihttp://hdl.handle.net/2097/4404
dc.publisherKansas State University. Agricultural Experiment Station and Cooperative Extension Serviceen_US
dc.relation.isPartOfCattlemen's Day, 2004en_US
dc.relation.isPartOfKansas Agricultural Experiment Station contribution; no. 04-242-Sen_US
dc.relation.isPartOfReport of progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service); 923en_US
dc.subjectBeefen_US
dc.subjectMicotil®en_US
dc.subjectBovine transfer factoren_US
dc.titleComparison of bovine transfer factor and Micotil®: effects on health and performance of receiving heifersen_US
dc.typeConference paperen_US

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