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Genetic parameters of backfat fatty acids and carcass traits in Large White pigs

Published online by Cambridge University Press:  28 August 2018

R. Davoli*
Affiliation:
Department of Agricultural and Food Sciences (DISTAL), University of Bologna,Viale Fanin 46, 40127 Bologna, Italy
G. Catillo
Affiliation:
Research Centre for Animal Production and Aquaculture (CREA), via Salaria 31, 00015 Monterotondo, Italy
A. Serra
Affiliation:
Department of Agriculture, Food and Environment, University of Pisa, via del Borghetto 80, 56124 Pisa, Italy
M. Zappaterra
Affiliation:
Department of Agricultural and Food Sciences (DISTAL), University of Bologna,Viale Fanin 46, 40127 Bologna, Italy
P. Zambonelli
Affiliation:
Department of Agricultural and Food Sciences (DISTAL), University of Bologna,Viale Fanin 46, 40127 Bologna, Italy
D. Meo Zilio
Affiliation:
Research Centre for Animal Production and Aquaculture (CREA), via Salaria 31, 00015 Monterotondo, Italy
R. Steri
Affiliation:
Research Centre for Animal Production and Aquaculture (CREA), via Salaria 31, 00015 Monterotondo, Italy
M. Mele
Affiliation:
Department of Agriculture, Food and Environment, University of Pisa, via del Borghetto 80, 56124 Pisa, Italy
L. Buttazzoni
Affiliation:
Research Centre for Animal Production and Aquaculture (CREA), via Salaria 31, 00015 Monterotondo, Italy
V. Russo
Affiliation:
Department of Agricultural and Food Sciences (DISTAL), University of Bologna,Viale Fanin 46, 40127 Bologna, Italy
*
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Abstract

Subcutaneous fat thickness and fatty acid composition (FAC) play an important role on seasoning loss and organoleptic characteristics of seasoned hams. Dry-cured ham industry prefers meats with low contents of polyunsaturated fatty acids (PUFA) because these negatively affect fat firmness and ham quality, whereas consumers require higher contents in those fatty acids (FA) for their positive effect on human health. A population of 950 Italian Large White pigs from the Italian National Sib Test Selection Programme was investigated with the aim to estimate heritabilities, genetic and phenotypic correlations of backfat FAC, Semimembranosus muscle intramuscular fat (IMF) content and other carcass traits. The pigs were reared in controlled environmental condition at the same central testing station and were slaughtered at reaching 150 kg live weight. Backfat samples were collected to analyze FAC by gas chromatography. Carcass traits showed heritability levels from 0.087 for estimated carcass lean percentage to 0.361 for hot carcass weight. Heritability values of FA classes were low-to-moderate, all in the range 0.245 for n-3 PUFA to 0.264 for monounsaturated FA (MUFA). Polyunsaturated fatty acids showed a significant genetic correlation with loin thickness (0.128), backfat thickness (−0.124 for backfat measured by Fat-O-Meat’er and −0.175 for backfat measured by calibre) and IMF (−0.102). Obviously, C18:2(n-6) shows similar genetic correlations with the same traits (0.211 with loin thickness, −0.206 with backfat measured by Fat-O-Meat’er, −0.291 with backfat measured by calibre and −0.171 with IMF). Monounsaturated FA, except with the backfat measured by calibre (0.068; P<0.01), do not show genetic correlations with carcass characteristics, whereas a negative genetic correlation was found between MUFA and saturated FA (SFA; −0.339; P<0.001). These results suggest that MUFA/SFA ratio could be increased without interfering with carcass traits. The level of genetic correlations between FA and carcass traits should be taken into account in dealing with the development of selection schemes addressed to modify carcass composition and/or backfat FAC.

Type
Research Article
Copyright
© The Animal Consortium 2018 

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References

Association of Official Analytical Chemists (AOAC) 2005. Official methods of analysis, method 920.39, fat (crude) or ether extract in animal feed, 18th edition. AOAC, Gaithersburg, MD, USA.Google Scholar
Bosi, P and Russo, V 2004. The production of the heavy pig for high quality processed products. Italian Journal of Animal Science 3, 309321.10.4081/ijas.2004.309Google Scholar
Corominas, J, Marchesi, JAP, Puig-Oliveras, A, Revilla, M, Estellé, J, Alves, E, Folch, JM and Ballester, M 2015. Epigenetic regulation of the ELOVL6 gene is associated with a major QTL effect on fatty acid composition in pigs. Genetics Selection Evolution 47, 20.Google Scholar
Dugan, MER, Vahmani, P, Turner, TD, Mapiye, C, Juárez, M, Prieto, N, Beaulieu, AD, Zijlstra, RT, Patience, JF and Aalhus, JL 2015. Pork as a source of omega-3 (n-3) fatty acids. Journal of Clinical Medicine 4, 19992011.10.3390/jcm4121956Google Scholar
Estany, J, Ros-Freixedes, R, Tor, M and Pena, RN 2014. A functional variant in the stearoyl-CoA desaturase gene promoter enhances fatty acid desaturation in pork. PLoS One 9, e86177.Google Scholar
Green, CD, Ozguden-Akkoc, CG, Wang, Y, Jump, DB and Olson, LK 2010. Role of fatty acid elongases in determination of de novo synthesized monounsaturated fatty acid species. Journal of Lipid Research 51, 18711877.Google Scholar
Groeneveld, E, Kovač, M and Mielenz, N 2010. VCE user’s guide and reference manual version 6. Retrieved on 28 January 2014 from https://vce.tzv.fal.de/software/download.Google Scholar
Guijas, C, Meana, C, Astudillo, AM, Balboa, MA and Balsinde, J 2016. Foamy monocytes are enriched in cis-7-hexadecenoic fatty acid (16:1n-9), a possible biomarker for early detection of cardiovascular disease. Cell Chemical Biology 23, 689699.Google Scholar
Juárez, M, Dugan, MER, Aldai, N, Aalhus, JL, Patience, JF, Zijlstra, RT and Beaulieu, AD 2011. Increasing omega-3 levels through dietary co-extruded flaxseed supplementation negatively affects pork palatability. Food Chemistry 126, 17161723.Google Scholar
Leonard, AE, Kelder, B, Bobik, EG, Chuang, LT, Lewis, CJ, Kopchick, J, Mukerji, P and Huang, YS 2002. Identification and expression of mammalian long-chain PUFA elongation enzymes. Lipids 37, 733740.Google Scholar
Lo Fiego, DP, Macchioni, P, Minelli, G and Santoro, P 2010. Lipid composition of covering and intramuscular fat in pigs at different slaughter age. Italian Journal of Animal Science 9, 200205.Google Scholar
Marinetti, GV 2012. Disorders of lipid metabolism. Springer Science and Business Media LLC, New York, NY, USA.Google Scholar
Mensink, RP, Zock, PL, Kester, AD and Katan, MB 2003. Effects of dietary fatty acids and carbohydrates on the ratio of serum total to HDL cholesterol and on serum lipids and apolipoproteins: a meta-analysis of 60 controlled trials. The American Journal of Clinical Nutrition 77, 11461155.Google Scholar
Miar, Y, Plastow, GS, Moore, SS, Manafiazar, G, Charagu, P, Kemp, RA, Van Haandel, B, Huisman, AE, Zhang, CY, McKay, RM, Bruce, HL and Wang, Z 2014. Genetic and phenotypic parameters for carcass and meat quality traits in commercial crossbred pigs. Journal of Animal Science 92, 28692884.10.2527/jas.2014-7685Google Scholar
Pena, RN, Ros-Freixedes, R, Tor, M and Estany, J 2016. Genetic marker discovery in complex traits: a field example on fat content and composition in pigs. International Journal of Molecular Sciences 17, 2100.Google Scholar
Raes, K, De Smet, S and Demeyer, D 2004. Effect of dietary fatty acids on incorporation of long chain polyunsaturated fatty acids and conjugated linoleic acid in lamb, beef and pork meat: a review. Animal Feed Science and Technology 113, 199221.Google Scholar
Ros-Freixedes, R, Gol, S, Pena, RN, Tor, M, Ibáñez-Escriche, N, Dekkers, JCM and Estany, J 2016. Genome-wide association study singles out SCD and LEPR as the two main loci influencing intramuscular fat content and fatty acid composition in Duroc pigs. PLoS One 11, e0152496.Google Scholar
Sellier, P, Maignel, L and Bidanel, JP 2010. Genetic parameters for tissue and fatty acid composition of backfat, perirenal fat and longissimus muscle in Large White and Landrace pigs. Animal 4, 497504.Google Scholar
Serra, A, Buccioni, A, Rodriguez-Estrada, MT, Conte, G, Cappucci, A and Mele, M 2014. Fatty acid composition, oxidation status and volatile organic compounds in “Colonnata” lard from Large White or Cinta Senese pigs as affected by curing time. Meat Science 97, 504512.Google Scholar
Suzuki, K, Ishida, M, Kadowaki, H, Shibata, T, Uchida, H and Nishida, A 2006. Genetic correlations among fatty acid compositions in different sites of fat tissues, meat production, and meat quality traits in Duroc pigs. Journal of Animal Science 84, 20262034.10.2527/jas.2005-660Google Scholar
Terés, S, Barceló-Coblijn, G, Benet, M, Álvarez, R, Bressani, R, Halver, JE and Escribá, PV 2008. Oleic acid content is responsible for the reduction in blood pressure induced by olive oil. Proceedings of the National Academy of Sciences 105, 1381113816.10.1073/pnas.0807500105Google Scholar
Tyra, M, Ropka-Molik, K, Terman, A, Piórkowska, K, Oczkowicz, M and Bereta, A 2013. Association between subcutaneous and intramuscular fat content in porcine ham and loin depending on age, breed and FABP3 and LEPR genes transcript abundance. Molecular Biology Reports 40, 23012308.Google Scholar
Virgili, R, Degni, M, Schivazappa, C, Faeti, V, Poletti, E, Marchetto, G, Pacchioli, MT and Mordenti, A 2003. Effect of age at slaughter on carcass traits and meat quality of Italian heavy pigs. Journal of Animal Science 81, 24482456.10.2527/2003.81102448xGoogle Scholar
Wallis, JG, Watts, JL and Browse, J 2002. Polyunsaturated fatty acid synthesis: what will they think of next? Trends in Biochemical Sciences 27, 467473.Google Scholar
Wood, J, Richardson, R, Nute, G, Fisher, A, Campo, M, Kasapidou, E, Sheard, PR and Enser, M 2004. Effects of fatty acids on meat quality: a review. Meat Science 66, 2132.10.1016/S0309-1740(03)00022-6Google Scholar
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