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Lammfleischqualität von extensiv gehaltenen und seltenen Schweizer Schafrassen (Engadinerschaf, Schwarznasenschaf, Spiegelschaf) im Vergleich zum Weißen Alpenschaf

Probst, Johanna; Leiber, Florian and Heckendorn, Felix (2009) Lammfleischqualität von extensiv gehaltenen und seltenen Schweizer Schafrassen (Engadinerschaf, Schwarznasenschaf, Spiegelschaf) im Vergleich zum Weißen Alpenschaf. Paper at: 10. Wissenschaftstagung Ökologischer Landbau, Zürich, 11.-13. Februar 2009.

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Summary

This study investigates meat quality of four autochthonous Swiss ovine breeds, White
Alpine (WAS, n=15), Walliser blacknose sheep (SN, n=8), Engadine sheep (EN, n=9)
and the Mirror sheep (SP, n=10). Especially for the latter two breeds, which are rare
and endangered, information about meat quality and constitution is important for
merchandising issues. All lambs (LW 20-25 kg) of each breed were fattened on pasture
for 208 d and subsequently slaughtered. Evaluations were carried out for slaughter
yield and classifications, pH-value, colorimetry (L*a*b*-System), shear force (Warner
Bratzler method) and cooking losses in the Musculus longissimus dorsi. The results
showed no meat quality defects in any breed. The main differences between breeds
arose in slaughter yield (p<0.001) with SN being significantly inferior to WAS, and CHTAX
where WAS was clearly superior to all other breeds. Compared to WAS, SN meat
was less colored (L*-value; p<0.001) which is probably related to the higher pH24h
(p<0.01) of SN when compared to WAS. Overall, this study showed that meat quality
of WAS is superior with low-land pasture based fattening conditions in Switzerland. It
is however possible that other fattening conditions (i.e. mountainous) would lead to
different results because Black nose, Engadine and Mirror sheep are traditional alpine
breeds which might substantially alter their production optimum.


EPrint Type:Conference paper, poster, etc.
Type of presentation:Paper
Keywords:Lammfleisch, Fleischqualität, gefährdete Rasse, Scherkraft, pH-Wert
Subjects: Animal husbandry > Breeding and genetics
Animal husbandry > Feeding and growth
Research affiliation: International Conferences > 2009: Scientific Conference on Organic Agriculture > Tier > Tierzucht
Related Links:http://www.wissenschaftstagung.de/, http://www.verlag-koester.de/buch.php?id=645&start=0&fb_id=37
Deposited By: Probst, Johanna
ID Code:14393
Deposited On:14 Apr 2009
Last Modified:12 Apr 2010 07:37
Document Language:German - Deutsch
Status:Published
Refereed:Peer-reviewed and accepted
Additional Publishing Information:Dieser Beitrag ist im Tagungsband der 10. Wissenschaftagung erschienen:
Mayer, J.; Alföldi, T.; Leiber, F.; Dubois, D.; Fried, P.; Heckendorn, F.; Hillmann, E.; Klocke, P.; Lüscher, A.; Riedel, S.; Stolze, M.; Strasser, F.; van der Heijden, M. and Willer, H., (Hrsg.) (2009) Werte – Wege – Wirkungen: Biolandbau im Spannungsfeld zwischen Ernährungssicherung, Markt und Klimawandel. Beiträge zur 10. Wissenschaftstagung Ökologischer Landbau, Zürich, 11.-13. Februar 2009.
Band 1: Boden, Pflanzenbau, Agrartechnik, Umwelt- und Naturschutz, Biolandbau international, Wissensmanagement
Band 2: Tierhaltung, Agrarpolitik und Betriebswirtschaft, Märkte und Lebensmittel.
Verlag Dr. Köster, Berlin.
Der Tagungsband kann beim Verlag Dr. Köster bezogen werden; siehe http://www.verlag-koester.de/buch.php?id=645&start=0&fb_id=37

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