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<meta content="Deland, M.P.B." name="eprints.creators_name" />
<meta content="Malau-Aduli, A.E.O." name="eprints.creators_name" />
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<meta content="Sex and breed differences in the fatty acid composition of muscle phospholipids in crossbred cattle" name="eprints.title" />
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<meta content="Fatty acids, muscle, phospholipids, crossbred cattle, breed, sex." name="eprints.keywords" />
<meta content="In Proceedings 6th World Congress on Genetics Applied to Livestock Production, The University of New England, Armidale, Australia, vol. 25, 185-188." name="eprints.note" />
<meta content="Phospholipid data from the Longissimus dorsi (eye muscle) of 117 weaners across 7 cattle genotypes were analysed. The aim was to investigate sex and breed differences in fatty acid composition of muscle phospholipids in an entirely grass-fed management situation. Results showed that sex was a significant source of variation in the levels of 18: ln-9, total monounsaturated fatty acids (MUFA) and calculated Δ9-desaturase enzyme activity index. Heifers had higher percentages in all cases than steers. All the other individual fatty acids and the summations of their proportions did not differ between the sexes. Significant breed differences were apparent in 18: ln-9, 18:3n-3, MUFA and Δ9-desaturase enzyme index. Wagyu and Belgian Blue crosses had the highest proportion of 18: ln-9 and Hereford the lowest. Jersey crosses and Hereford breeds had the highest 18:3n-3 levels and Belgian Blue the lowest. Δ9-desaturase enzyme index was highest in the Wagyu crosses. There were no other breed differences detected in all the other individual fatty acids and their summations. This study suggests that in weaners, the fatty acid composition of muscle lipids differs between breeds and sexes. The magnitude of the differences is, nevertheless, more reflected in the adipose tissue than in the muscle phospholipids. Also, Wagyu and Belgian Blue genotypes produced muscles with the most monounsaturated fatty acids." name="eprints.abstract" />
<meta content="1998-01-11" name="eprints.date" />
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<meta content="Doreau, M. and Ferlay, A. (1994). Anim. Feed Sci. Tech. 45: 379-396
Malau-Aduli, A.E.O., Siebert, B.D., Pitchford, W.S. and Bottema, C.D.K. (1995) Proc.Australian Assoc. Anim. Breed. Genetics 11: 554-557
Malau-Aduli, A.E.O., Siebert, B.D., Bottema, C.D.K. and Pitchford, W.S. (1996) Proc. Asian-Australasian Assoc. Anim. Prod. 2:32-33
Malau-Aduli, A.E.O., Siebert, B.D., Bottema, C.D.K. and Pitchford, W.S. (1997a) Australian J. Agric. Res. 48:715-722
Malau-Aduli, A.E.O., Siebert, B.D., Bottema, C.D.K. and Pitchford, W.S. (1997b) Proc.Assoc. Advmt. Anim. Breed. Genetics. 12:580-584
Prior, R.L., Smith, S.B., Schanbacher, R.D. and Mersmann, H.J. (1983). Anim. Prod. 37:8 1
Rutley, D.L., Deland, M.P.B. and Pitchford, W.S. (1995) Proc. Australian Assoc. Anim. Breed. Genetics 11:151-154
SAS (1989) SAS User’s Guide: Statistics. Version 6, SAS Institute, Cary, NC
Siebert, B.D., Deland, M.P.B. and Pitchford, W.S. (1996) Australian J. Agric. Res. 47:943-52
Siebert, B.D., Malau-Aduli, A.E.O., Deland, M.P.B., Bottema, C.D.K and Pitchford, W.S.(1998) Proc. 6th World Congr. Gen. Appl. Livest. Prod. 25:177-180
Simopoulos, A.M. (1994) Nutrition Today. (Jan/Feb): 12- 16
St. John, L.C., Lunt, D.K. and Smith, S.B. (1991) J. Anim. Sci. 69: 1064-1073
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<meta content="Phospholipid data from the Longissimus dorsi (eye muscle) of 117 weaners across 7 cattle genotypes were analysed. The aim was to investigate sex and breed differences in fatty acid composition of muscle phospholipids in an entirely grass-fed management situation. Results showed that sex was a significant source of variation in the levels of 18: ln-9, total monounsaturated fatty acids (MUFA) and calculated Δ9-desaturase enzyme activity index. Heifers had higher percentages in all cases than steers. All the other individual fatty acids and the summations of their proportions did not differ between the sexes. Significant breed differences were apparent in 18: ln-9, 18:3n-3, MUFA and Δ9-desaturase enzyme index. Wagyu and Belgian Blue crosses had the highest proportion of 18: ln-9 and Hereford the lowest. Jersey crosses and Hereford breeds had the highest 18:3n-3 levels and Belgian Blue the lowest. Δ9-desaturase enzyme index was highest in the Wagyu crosses. There were no other breed differences detected in all the other individual fatty acids and their summations. This study suggests that in weaners, the fatty acid composition of muscle lipids differs between breeds and sexes. The magnitude of the differences is, nevertheless, more reflected in the adipose tissue than in the muscle phospholipids. Also, Wagyu and Belgian Blue genotypes produced muscles with the most monounsaturated fatty acids." name="DC.description" />
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<h1 class="ep_tm_pagetitle">Sex and breed differences in the fatty acid composition of muscle phospholipids in crossbred cattle</h1>
<p style="margin-bottom: 1em" class="not_ep_block"><span class="person_name">Deland, M.P.B.</span> and <span class="person_name">Malau-Aduli, A.E.O.</span> and <span class="person_name">Siebert, B.D.</span> and <span class="person_name">Bottema, C.D.K.</span> and <span class="person_name">Pitchford, W.S.</span> (1998) <xhtml:em>Sex and breed differences in the fatty acid composition of muscle phospholipids in crossbred cattle.</xhtml:em> In: 6th World Congress on Genetics Applied to Livestock Production, 11 January 1998, Armidale.</p><p style="margin-bottom: 1em" class="not_ep_block"></p><table style="margin-bottom: 1em" class="not_ep_block"><tr><td valign="top" style="text-align:center"><a onmouseover="EPJS_ShowPreview( event, 'doc_preview_4027' );" onmouseout="EPJS_HidePreview( event, 'doc_preview_4027' );" href="http://eprints.utas.edu.au/2982/1/Malau-Aduli_1998WCGALPArmidaleSexBreedPL.pdf"><img alt="[img]" src="http://eprints.utas.edu.au/style/images/fileicons/application_pdf.png" border="0" class="ep_doc_icon" /></a><div class="ep_preview" id="doc_preview_4027"><table><tr><td><img alt="" src="http://eprints.utas.edu.au/2982/thumbnails/1/preview.png" border="0" class="ep_preview_image" /><div class="ep_preview_title">Preview</div></td></tr></table></div></td><td valign="top"><a href="http://eprints.utas.edu.au/2982/1/Malau-Aduli_1998WCGALPArmidaleSexBreedPL.pdf"><span class="ep_document_citation">PDF</span></a> - Requires a PDF viewer<br />194Kb</td></tr></table><p style="margin-bottom: 1em" class="not_ep_block">Official URL: <a href="http://elib.tiho-hannover.de/publications/6wcgalp/papers/author.htm">http://elib.tiho-hannover.de/publications/6wcgalp/papers/author.htm</a></p><div class="not_ep_block"><h2>Abstract</h2><p style="padding-bottom: 16px; text-align: left; margin: 1em auto 0em auto">Phospholipid data from the Longissimus dorsi (eye muscle) of 117 weaners across 7 cattle genotypes were analysed. The aim was to investigate sex and breed differences in fatty acid composition of muscle phospholipids in an entirely grass-fed management situation. Results showed that sex was a significant source of variation in the levels of 18: ln-9, total monounsaturated fatty acids (MUFA) and calculated Δ9-desaturase enzyme activity index. Heifers had higher percentages in all cases than steers. All the other individual fatty acids and the summations of their proportions did not differ between the sexes. Significant breed differences were apparent in 18: ln-9, 18:3n-3, MUFA and Δ9-desaturase enzyme index. Wagyu and Belgian Blue crosses had the highest proportion of 18: ln-9 and Hereford the lowest. Jersey crosses and Hereford breeds had the highest 18:3n-3 levels and Belgian Blue the lowest. Δ9-desaturase enzyme index was highest in the Wagyu crosses. There were no other breed differences detected in all the other individual fatty acids and their summations. This study suggests that in weaners, the fatty acid composition of muscle lipids differs between breeds and sexes. The magnitude of the differences is, nevertheless, more reflected in the adipose tissue than in the muscle phospholipids. Also, Wagyu and Belgian Blue genotypes produced muscles with the most monounsaturated fatty acids.</p></div><table style="margin-bottom: 1em" border="0" cellpadding="3" class="not_ep_block"><tr><th valign="top" class="ep_row">Item Type:</th><td valign="top" class="ep_row">Conference or Workshop Item (Paper)</td></tr><tr><th valign="top" class="ep_row">Additional Information:</th><td valign="top" class="ep_row">In Proceedings 6th World Congress on Genetics Applied to Livestock Production, The University of New England, Armidale, Australia, vol. 25, 185-188.</td></tr><tr><th valign="top" class="ep_row">Keywords:</th><td valign="top" class="ep_row">Fatty acids, muscle, phospholipids, crossbred cattle, breed, sex.</td></tr><tr><th valign="top" class="ep_row">Subjects:</th><td valign="top" class="ep_row"><a href="http://eprints.utas.edu.au/view/subjects/270200.html">270000 Biological Sciences > 270200 Genetics</a><br /><a href="http://eprints.utas.edu.au/view/subjects/270207.html">270000 Biological Sciences > 270200 Genetics > 270207 Quantitative Genetics</a><br /><a href="http://eprints.utas.edu.au/view/subjects/300401.html">300000 Agricultural, Veterinary and Environmental Sciences > 300400 Animal Production > 300401 Animal Breeding</a><br /><a href="http://eprints.utas.edu.au/view/subjects/300400.html">300000 Agricultural, Veterinary and Environmental Sciences > 300400 Animal Production</a><br /><a href="http://eprints.utas.edu.au/view/subjects/270100.html">270000 Biological Sciences > 270100 Biochemistry and Cell Biology</a></td></tr><tr><th valign="top" class="ep_row">Collections:</th><td valign="top" class="ep_row">UNSPECIFIED</td></tr><tr><th valign="top" class="ep_row">ID Code:</th><td valign="top" class="ep_row">2982</td></tr><tr><th valign="top" class="ep_row">Deposited By:</th><td valign="top" class="ep_row"><span class="ep_name_citation"><span class="person_name">Dr Aduli E.O. Malau-Aduli</span></span></td></tr><tr><th valign="top" class="ep_row">Deposited On:</th><td valign="top" class="ep_row">01 Feb 2008 12:08</td></tr><tr><th valign="top" class="ep_row">Last Modified:</th><td valign="top" class="ep_row">01 Feb 2008 12:08</td></tr><tr><th valign="top" class="ep_row">ePrint Statistics:</th><td valign="top" class="ep_row"><a target="ePrintStats" href="/es/index.php?action=show_detail_eprint;id=2982;">View statistics for this ePrint</a></td></tr></table><p align="right">Repository Staff Only: <a href="http://eprints.utas.edu.au/cgi/users/home?screen=EPrint::View&eprintid=2982">item control page</a></p>
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