The influence of R-Salbutamol on feedlot performance, carcass characteristics and meat quality in Dorper ram, wether and ewe lambs

Simple item page
dc.contributor.advisorHoffman, Louwrens C.en_ZA
dc.contributor.advisorStrydom, P. E.en_ZA
dc.contributor.advisorNolte, J. vE.en_ZA
dc.contributor.advisorMuchenje, V.en_ZA
dc.contributor.authorDu Toit, Raoulen_ZA
dc.contributor.otherStellenbosch University. Faculty of AgriSciences. Dept. of Animal Sciences.en_ZA
dc.date.accessioned2017-02-17T13:39:09Z
dc.date.accessioned2017-03-29T11:53:57Z
dc.date.available2017-02-17T13:39:09Z
dc.date.available2017-03-29T11:53:57Z
dc.date.issued2017-03
dc.descriptionThesis (MScAgric)--Stellenbosch University, 2007.en_ZA
dc.description.abstractENGLISH ABSTRACT: A study on the effects of different R-salbutamol inclusion levels in a commercial finishing diet, on feedlot performance of three Dorper lamb sexes were carried out. The investigation consisted of two individual feedlot performance testing trials following a 2 x 4 factorial arrangement of treatments. Trial 1 consisted of 28 ram and 28 wether lambs, whilst Trial 2 used the same number of wether and ewe lambs. At the start of the trials, the lambs were randomly allocated to one of four R-salbutamol containing finisher feeds (0mg/kg, 110mg/kg, 135mg/kg and 160mg/kg feed). Live weights, feed intake and ort weights were recorded once a week for four consecutive weeks. Results from Trial 1 show that rams had superior average daily gain (ADG) and feed conversion ratio (FCR) values compared wethers. The comparison of ewes and wethers in Trial 2 showed no differences between these two sexes, for any of the feedlot performance attributes (ADG, FCR and dry matter intake (DMI)). In Trial 1 R-salbutamol had an effect only on the efficiency with which the lambs utilised the feed. The 110mg treatment group had superior FCR values compared to the control group. The 135mg and 160mg inclusion levels did however not differ significantly from either the control or 110mg treatment. No differences between beta-agonist inclusion levels were observed for any of the feedlot performance traits in Trial 2.en_ZA
dc.description.abstractAFRIKAANSE OPSOMMING: Geen opsomming beskikbaaren_ZA
dc.format.extent147 pages : illustrationsen_ZA
dc.identifier.urihttp://hdl.handle.net/10019.1/100982
dc.language.isoen_ZAen_ZA
dc.publisherStellenbosch : Stellenbosch Universityen_ZA
dc.rights.holderStellenbosch Universityen_ZA
dc.subjectInfluence of R-Salbutamol on feedlot performanceen_ZA
dc.subjectDorper sheep -- Meat qualityen_ZA
dc.subjectDorper sheep -- Carcass characteristicsen_ZA
dc.subjectDorper sheep -- Nutritionen_ZA
dc.subjectUCTDen_ZA
dc.titleThe influence of R-Salbutamol on feedlot performance, carcass characteristics and meat quality in Dorper ram, wether and ewe lambsen_ZA
dc.typeThesisen_ZA
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
dutoit_influence_2017.pdf
Size:
2.03 MB
Format:
Adobe Portable Document Format
Description:
Download
License bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
license.txt
Size:
1.71 KB
Format:
Plain Text
Description:
Download
Collections
Masters Degrees (Animal Sciences)