Branco, A. F.

Jobim, C. C.

Lombardy, L.

Macedo, F. A. F.

English

University of Kentucky

University of Kentucky UKnowledge International Grassland Congress Proceedings XXI International Grassland Congress / VIII International Rangeland Congress Carcass Characteristics of Sheep Fed High Moisture Corn Silage with or without Whole Sunflower or Urea Finished in Feedlot C. C. Jobim State University of Maringa, Brazil F. A. F. Macedo State University of Maringa, Brazil A. F. Branco State University of Maringa, Brazil L. Lombardy Follow this and additional works at: https://uknowledge.uky.edu/igc  Part of the Plant Sciences Commons, and the Soil Science Commons This document is available at https://uknowledge.uky.edu/igc/21/15-2/11 The XXI International Grassland Congress / VIII International Rangeland Congress took place in Hohhot, China from June 29 through July 5, 2008. Proceedings edited by Organizing Committee of 2008 IGC/IRC Conference Published by Guangdong People's Publishing House This Event is brought to you for free and open access by the Plant and Soil Sciences at UKnowledge. It has been accepted for inclusion in International Grassland Congress Proceedings by an authorized administrator of UKnowledge. For more information, please contact UKnowledge@lsv.uky.edu. 瞯 708　 瞯 　 Multifunctional Grasslands in a Changing World 　 Volume Ⅱ 　Grasslands/Rangelands Production Systems ——— Forage Quality ,Conservation and UtilizationCarcass characteristics of sheep fed high moisture corn silage with or without whole sunflower orurea finished in feedlotC .C . Jobim1 , F .A . F . Macedo1 , A .F . Branco1 and L . LombardyDepartment o f Animal Science ‐ State University o f Maringa , A v . Colombo , 5790 . Maringa‐Pr ( cc jobim ＠ uem .br ;f a f macedo ＠ uem .br ; a f branco ＠ uem .br)Key words : sheep ,loin eye area ,cut yieldsIntroduction High moisture corn silage ( HMCS) shows advantage in terms of nutrition because of an increased feed efficiency .However , high moisture corn silage may have an improvement for energy and protein values . Jobim et al . (２００２ ) verified anincrease in quality of high moisture corn silage by inclusion of whole soybean . This study was carried out to evaluate effects ofconcentrates in addition to high moisture corn silage alone or with whole sunflower or urea in diets for sheep on weight gain andcarcass yield .Materials and methods The experiment was conducted at State University of Maringa , Parana‐Brazil . It was evaluated theperformance of male Hampshire sheep fed corn silage as roughage and concentrate based on high moisture corn silages . Thetreatments evaluated were : １ ) HMCS ; ２ ) HMCS added of ２０ ％ of whole sunflower ( HMCSSF) and ３ ) HMCS added of １ ％urea ( HMCSU) . It was used a completely randomized design with ８ repetitions . After slaughter , carcasses were weighted toobtain hot carcass weight ( HCW) and kept in a refrigerating chamber under ４ ℃ for ２４ hours to obtain cold carcass weight( CCW) . Carcasses were cut transversally between １２nd and １３rd ribs to obtain the transversal section of Longissimus dorsi ,where was determined loin eye area ( LEA , cm２ ) . Results were analyzed using ANOVA ( SAS , ２００３ ) .Results There were no effects of diets on daily weight gain and carcass characteristics . The HCW obtained shows a satisfactoryresult as they are in the range of preference by Brazilian consumers , and prove the potential of high moisture corn silage toformulate the concentrate . ELA was １１ .８９ cm２ on average which agrees with values normally obtained for sheep slaughteredwith ３１ kg of average live weight .Table 1 Average f or initial live weight ( I LW) , f inal live weight ( FLW) , daily gain ( DG) , hot carcass weight ( HCW) ,cold carcass weight (CCW) , weight loss by re f rigerating ( WLR) , and true yield ( TY) .Items HMCS HMCSSF HMCSU Average P VC ( ％ )ILW ( kg ) ２２ .７１ ２３ .２２ ２３ .００ ２２ .９８ ０ .０９ １０ .２２FLW ( kg) ３１ .４３ ３０ .８５ ３０ .８８ ３１ .０５ ０ .６０ ３ .８５DG ( kg/ dia) ０ .１７ ０ .１５ ０ .１５ ０ .１６ ０ .３２ １９ .５１HCW (kg ) １３ .５５ １３ .１８ １３ .４３ １３ .３９ ０ .２７ ７ .５７CCW (kg ) １２ .９５ １２ .５４ １２ .９２ １２ .８０ ０ .４４ ７ .６１WLR ( ％ ) ４ .３９ ４ .８７ ３ .８１ ４ .３６ ０ .５１ ４８ .０７TY ( ％ ) ５０ .５１ ５０ .５１ ５０ .４９ ５０ .５１ ０ .３０ ５ .６９LEA (cm２ ) １２ .０７ １１ .６６ １１ .９５ １１ .８９ ０ .１０ ４ .３２HMCS ＝ high moisture corn silage ; HMCSSF ＝ high moisture corn silage ＋ whole sunflower ; HMCSU ＝ high moisture corn silage ＋ １ ％ urea ; P ＝ P values , VC ＝variation coefficientConclusion Inclusion of ２０ ％ whole sunflower or １ ％ urea in high moisture corn silage to formulate finishing sheep diets did notimprove live weight gain and carcass characteristics .ReferencesJOBIM , C .C . , BARRIM , G .M . , REIS , W . , GON卑ALVES , G .D . Composi毕本o química da silagem de gr本os úmido de milhocom adi毕本o de gr本os de soja . In : ３９ REUNI橅O ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA , ２００２ ,Recife . . . Anais da 39 Reuni本o Anual da Sociedade Brasileira de Zootecnia , v . １ , n .１ , p . １‐３ , ２００２ .SAS Institute . Statistics analysis systems . Version ８ .０２ , Cary , ２００３ .

Carcass Characteristics of Sheep Fed High Moisture Corn Silage with or without Whole Sunflower or Urea Finished in Feedlot

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Carcass Characteristics of Sheep Fed High Moisture Corn Silage with or without Whole Sunflower or Urea Finished in Feedlot

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