Ralgro-implanted bulls: Performance, carcass characteristics, longissimus palatability and carcass electrical stimulation

dc.citation.epage363en_US
dc.citation.issn0021-8812en_US
dc.citation.issue2en_US
dc.citation.jtitleJournal of animal scienceen_US
dc.citation.spage355en_US
dc.citation.volume57en_US
dc.contributor.authorGreathouse, J.R.
dc.contributor.authorHunt, Melvin C.
dc.contributor.authorDikeman, Michael E.
dc.contributor.authorCorah, L.R.
dc.contributor.authorKastner, Curtis L.
dc.contributor.authorKropf, Donald H.
dc.contributor.authoreidhhunten_US
dc.contributor.authoreidmdikeman
dc.contributor.authoreidckastner
dc.contributor.authoreiddkropf
dc.date.accessioned2008-06-02T20:56:01Z
dc.date.available2008-06-02T20:56:01Z
dc.date.issued2008-06-02T20:56:01Z
dc.date.published1983en_US
dc.description.abstractTwenty of 40 Angus bulls were implanted (I) five times with 36 mg of Ralgro| at average intervals of 106 d, beginning near birth. All bulls and their dams were on bluestem pasture initially and, at an average age of 320 d bulls were fed a concentrate diet until they were slaughtered, weighing either 454 or 499 kg. One side of each carcass was electrically stimulated. Average daily gain and feed efficiency of I bulls improved 6.5 to 10.4% and 7.9 to 8.1%, respectively, depending upon the end point comparison with nonimplanted (NI) bulls. Implanted bulls attained their slaughter weights 42 d sooner than did NI bulls. Implantation decreased (P<.05) penis weight and length, testicle weight, volume and density, but did not affect (P>.05) seminal vesicle and pituitary weights. Carcasses from I bulls had more (P<.05) skeletal ossification and were fatter than carcasses from NI bulls. Marbling scores, quality grades and longissimus cooking losses and juiciness scores were not affected (P>.05) by implantation. Taste panel flavor intensity and detectable connective tissue scores were higher (P<.05) for steaks from I bulls than from NI bulls. Longissimus steak tenderness evaluations were higher (P<.05) for both I slaughter groups than for the NI light-weight group and were higher (P<.05) for the I lightweight group than for the NI heavy-weight group. Longissimus tenderness tended (P = .11) to be higher for steaks from the I heavy-weight group than those from the NI heavy-weight group. Electrical stimulation produced (P<.05) a softer, coarser textured lean, but it did not affect lean color, marbling or quality grade. Steaks from electrically stimulated sides tended to have higher (P = .09) myofibrillar tenderness scores and lower (P = .06) flavor scores than steaks from nonstimulated sides.en
dc.identifier.urihttp://hdl.handle.net/2097/850
dc.publisherAmerican Society of Animal Scienceen_US
dc.subjectFood scienceen
dc.subjectBullsen
dc.subjectRalgro implantationen
dc.subjectPerformanceen
dc.subjectElectrical stimulationen
dc.subjectPalatabilityen
dc.subjectZeranolen
dc.titleRalgro-implanted bulls: Performance, carcass characteristics, longissimus palatability and carcass electrical stimulationen
dc.typeArticle (publisher version)en

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