Nutritional quality assessment of different muscles derived from 15-year-old female emus (Dromaius novaehollandiae): Meat physicochemical traits and sensory scoresław M., Majewska D., Szczerbińska D., Jakubowska M. (2019): Nutritional quality assessment of different muscles derived from 15-year-old female emus (Dromaius novaehollandiae): Meat physicochemical traits and sensory scores. Czech J. Anim. Sci., 64: 226-238.
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The emu (Dromaius novaehollandiae) is considered a versatile farm species whose main by-products are meat and oil. At present, there is lack of information on the value of the meat of laying females at the end of their reproductive cycle which hampers the development of a specific market. To fill this gap, the present research aimed at studying the mineral composition, fatty acid profile, cholesterol level, selected physicochemical parameters and sensory quality of the meat of laying females at the end of their reproductive life cycles was carried out. The study should extend the knowledge on the application of this type of meat in food products as well as the available nutritional information on the muscles of female emus slaughtered at the end of their reproductive lives. The research material consisted of eight females slaughtered at the age of 15 years, at the end of their reproductive period. Following exsanguination, plucking and evisceration, the carcasses were cooled at 4°C for 24 h. After this time, five muscles were separated from both halfs of the carcases. The results showed that meat from 15-year-old females is of satisfactory nutritional quality. The rich mineral composition, high protein content, and low intramuscular fat and cholesterol contents deserve special emphasis. For this reason, the meat can be recommended for formulating healthy diets for humans. Its trading development is therefore expectable.

AOAC (2007): Official Methods of Analysis of AOAC International. 18th Ed. Association of Official Analytical Chemists, Arlington, USA.
Barylko-Pikielna N., Kossakowska T., Baldwin Z. (1964): Selection of the optimum method of beef and pork preparation for sensory evaluation. Roczniki Instytutu Przemyslu Miesnego, 1, 111–132.
Beckerbauer L. M., Thiel-Cooper R., Ahn D. U., Sell J. L., Parrish F. C., Beitz D. C. (2001): Influence of Two Dietary Fats on the Composition of Emu Oil and Meat. Poultry Science, 80, 187-194
Berge P., Lepetit J., Renerre M., Touraille C. (1997): Meat quality traits in the emu (Dromaius novaehollandiae) as affected by muscle type and animal age. Meat Science, 45, 209-221
Botha S.St.C., Hoffman L.C., Britz T.J. (2007): Physical meat quality characteristics of hot-deboned ostrich (Struthio camelus var. domesticus) Muscularis gastrocnemius, pars interna during post-mortem aging. Meat Science, 75, 709-718
Buclaw M., Majewska D., Szczerbinska D. (2018): Minerals, trace elements, cholesterol and fatty acids content in various muscles of emu (Dromaius novaehollandiae). Animal Science Papers ans Reports, 36, 311–322.
Commission Internationale de l’Eclairage (CIE) (1976): Colorimetry: Official Recommendations of the International Commission on Illumination. Publication CIE No. 15 (E-1.3.1), Boreau Central de la CIE, Paris, France.
Cunha Sara S., Fernandes José O., Oliveira M. Beatriz P.P. (2006): Quantification of free and esterified sterols in Portuguese olive oils by solid-phase extraction and gas chromatography–mass spectrometry. Journal of Chromatography A, 1128, 220-227
Filgueras R.S., Gatellier P., Aubry L., Thomas A., Bauchart D., Durand D., Zambiazi R.C., Santé-Lhoutellier V. (2010): Colour, lipid and protein stability of Rhea americana meat during air- and vacuum-packaged storage: Influence of muscle on oxidative processes. Meat Science, 86, 665-673
Filgueras Renata S., Gatellier Philippe, Ferreira Claude, Zambiazi Rui C., Santé-Lhoutellier Véronique (2011): Nutritional value and digestion rate of rhea meat proteins in association with storage and cooking processes. Meat Science, 89, 6-12
Grau R., Hamm R. (1953): Eine einfache Methode zur Bestimmung der Wasserbindung im Muskel. Die Naturwissenschaften, 40, 29-30
Hoffman L.C, Fisher P (2001): Comparison of meat quality characteristics between young and old ostriches. Meat Science, 59, 335-337
Hoffman L.C., Joubert M., Brand T.S., Manley M. (2005): The effect of dietary fish oil rich in n−3 fatty acids on the organoleptic, fatty acid and physicochemical characteristics of ostrich meat. Meat Science, 70, 45-53
Horbañczuk J., Sales J., Celeda T., Konecka A., Ziêba G., Kawka P. (1998): Cholesterol content and fatty acid composition of ostrich meat as influenced by subspecies. Meat Science, 50, 385-388
Horbańczuk Olaf K., Wierzbicka Agnieszka (2016): Technological and nutritional properties of ostrich, emu, and rhea meat quality. Journal of Veterinary Research, 60, 279-286
Horbańczuk JO, Poławska E, Wójcik A, Hoffman LC (2015): Influence of Frozen Storage on the Fatty Acid Composition of Ostrich Meat Enriched with Linseed and Rapeseed. South African Journal of Animal Science, 45, 129-
Jamroz D. (2005): Ostriches and emu feeding recommendations. In: Smulikowska S. and Rutkowski A. (eds): Dietary Recommendations and Nutritive Value of Feeds. Nutrition Standards of Poultry The Kielanowski Institute of Animal Physiology and Nutrition, Jablonna, Poland.
Knight T. W., Knowles S., Death A. F., West J., Agnew M., Morris C. A., Purchas R. W. (2010): Factors affecting the variation in fatty acid concentrations in lean beef from grass‐fed cattle in New Zealand and the implications for human health. New Zealand Journal of Agricultural Research, 46, 83-95
Kunachowicz H., Przygoda B., Nadolna I., Iwanow K. (2017): Food Composition Tables. PZWL, Warsaw, Poland.
Kuzelov A., Jordanoski M., Gacovski Z., Trajcova D. (2012): Carcass categorization and chemical composition of ostrich meat. Macedonian Journal of Animal Science, 2, 67–69.
Lamas Luis P., Main Russell P., Hutchinson John R. (2014): Ontogenetic scaling patterns and functional anatomy of the pelvic limb musculature in emus ( Dromaius novaehollandiae ). PeerJ, 2, e716-
Majewska Danuta, Jakubowska Małgorzata, Ligocki Marek, Tarasewicz Zofia, Szczerbińska Danuta, Karamucki Tadeusz, Sales James (2009): Physicochemical characteristics, proximate analysis and mineral composition of ostrich meat as influenced by muscle. Food Chemistry, 117, 207-211
Menon Deepa G., Bennett Darin C., Uttaro Bethany, Schaefer Allan L., Cheng Kimberly M. (2014): Carcass yields and meat quality characteristics of adult emus (Dromaius novaehollandiae) transported for 6h before slaughter. Meat Science, 98, 240-246
Morris J. G. (2004): Do cats need arachidonic acid in the diet for reproduction?. Journal of Animal Physiology and Animal Nutrition, 88, 131-137
Naveena B.M., Sen A.R., Muthukumar M., Girish P.S., Praveen Kumar Y., Kiran M. (2013): Carcass characteristics, composition, physico-chemical, microbial and sensory quality of emu meat. British Poultry Science, , 1-8
Nithyalakshmi V., Preetha R. (2015): Effect of cooking conditions on physico-chemical and textural properties of emu (Dromaius novaehollandiae) meat. International Food Research Journal, 22, 1924–1930.
Pegg Ronald B., Amarowicz Ryszard, Code William E. (2006): Nutritional characteristics of emu (Dromaius novaehollandiae) meat and its value-added products. Food Chemistry, 97, 193-202
Pereira Amanda Vieira, Romanelli Pedro Fernando, Scriboni Andréia Borges, Orlandini Flávia Pinheiro (2006): Rendimentos do abate e composição da carne de ema (Rhea americana). Ciência e Tecnologia de Alimentos, 26, 632-638
Pohja M.S., Niinivaara F.P. (1957): Determination of water binding of meat by means of constant pressure. Fleischwirtschaft, 9, 193–95. (in German)
Ramos A., Cabrera M.C., del Puerto M., Saadoun A. (2009): Minerals, haem and non-haem iron contents of rhea meat. Meat Science, 81, 116-119
Romanelli P.F., Trabuco E., Scriboni A.B., Visentainer J.V., de Souza N.E. (2008): Chemical composition and fatty acid profile of rhea (Rhea americana) meat. Archivos Latinoamericanos de Nutricion, 58, 201–205.
Szczerbinska D., Majewska D., Danczak A., Tarasewicz Z. (2007). Emu. Wytdawnictwo Naukowe Akademii Rolniczej w Szczecinie, Szczecin, Poland.
Ulbricht T.L.V., Southgate D.A.T. (1991): Coronary heart disease: seven dietary factors. The Lancet, 338, 985-992
Zalucki G. (2015): Muscles. In: Krzymowski T. (ed.): Animal Physiology. Panstwowe Wydawnictwo Rolnicze i Lesne, Warsaw, Poland.
Zdanowska-Sąsiadek Ż., Michalczuk M., Poławska E., Damaziak K., Niemiec J., Radzik-Rant A., Plaizier J. (2016): Dietary vitamin E supplementation on cholesterol, vitamin E content, and fatty acid profile in chicken muscles. Canadian Journal of Animal Science, 96, 114-120
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