Effect of selection for intramuscular fat on the fatty acid composition of rabbit meat

被引:15
作者
Martinez-Alvaro, M. [1 ]
Blasco, A. [1 ]
Hernandez, P. [1 ]
机构
[1] Univ Politecn Valencia, Inst Anim Sci & Technol, E-46022 Valencia, Spain
关键词
correlated responses; genetic parameters; intramuscular fat; selection; fatty acids; GENETIC CORRELATIONS; DIVERGENT SELECTION; LONGISSIMUS MUSCLE; CARCASS TRAITS; QUALITY; PARAMETERS; LINES; DEPOSITION; RESPONSES;
D O I
10.1017/S1751731117003494
中图分类号
S8 [畜牧、 动物医学、狩猎、蚕、蜂];
学科分类号
0905 ;
摘要
Intramuscular fat (IMF) content and composition are relevant for the meat industry due to their effect on human health and meat organoleptic properties. A divergent selection experiment for IMF of Longissimus dorsi (LD) muscle was performed in rabbits during eight generations. The aim of this study is to estimate the correlated responses to selection for IMF on the fatty acid composition of LD. Response to selection for IMF was 0.34 g/100 g of LD, representing 2.4 phenotypic SD of the trait. High-IMF line showed 9.20% more monounsaturated fatty acids (MUFA) and 0.39%, 9.97% and 10.3% less n-3, n-6 and polyunsaturated fatty acids (PUFA), respectively, than low-IMF line. The main MUFA and PUFA individual fatty acids followed a similar pattern, except for C18:3n-3 that was greater in the high-IMF line. We did not observe differences between lines for the percentage of total saturated fatty acids, although high-IMF line showed greater C14:0 and C16:0 and lower C18:0 percentages than low-IMF line. Heritability estimates were generally high for all fatty acids percentages, ranging from 0.43 to 0.59 with a SD around 0.08, showing an important genetic component on these traits. Genetic correlations between IMF and LD fatty acid percentages were strong and positive for C14:0, C16:1, C18:1n-9, and MUFA, ranging from 0.88 to 0.97, and strong and negative for C18:0, C18:2n-6, C20:4n-6, n-6 and PUFA, ranging from -0.83 to -0.91. These correlations were accurately estimated, with SD ranging from 0.02 to 0.06. The genetic correlations between IMF and other fatty acids were estimated with lower accuracy. In general, phenotypic and genetic correlations were of the same order. Our experiment shows that selection for IMF strongly affects the fatty acid composition of meat, due the high heritabilities of fatty acids and their high genetic correlations with IMF.
引用
收藏
页码:2002 / 2008
页数:7
相关论文
共 50 条
[41]   Divergent selection for intramuscular fat content in rabbits. II. Correlated responses on carcass and meat quality traits [J].
Zomeno, C. ;
Blasco, A. ;
Hernandez, P. .
JOURNAL OF ANIMAL SCIENCE, 2013, 91 (09) :4532-4539
[42]   Interactions between genotype, dietary fat saturation and vitamin A concentration on intramuscular fat content and fatty acid composition in pigs [J].
Olivares, A. ;
Daza, A. ;
Rey, A. I. ;
Lopez-Bote, Q. .
MEAT SCIENCE, 2009, 82 (01) :6-12
[43]   Effect of immunocastration and caponization on fatty acid composition of male chicken meat [J].
Antunes, I. C. ;
Quaresma, M. A. G. ;
Ribeiro, M. F. ;
Alves, S. P. ;
Martins da Costa, P. ;
Bessa, R. J. B. .
POULTRY SCIENCE, 2019, 98 (07) :2823-2829
[44]   Effect of intensive fattening of lambs with forages on the fatty acid profile of intramuscular and subcutaneous fat [J].
Kaczor, U. ;
Borys, B. ;
Pustkowiak, H. .
CZECH JOURNAL OF ANIMAL SCIENCE, 2010, 55 (10) :408-419
[45]   Effect of corn supplementation of grass finishing of Holstein bulls on fatty acid composition of meat lipids [J].
Rosa, H. J. D. ;
Rego, O. A. ;
Silva, C. C. G. ;
Alves, S. P. ;
Alfaia, C. M. M. ;
Prates, J. A. M. ;
Bessa, R. J. B. .
JOURNAL OF ANIMAL SCIENCE, 2014, 92 (08) :3701-3714
[46]   Dietary vitamin A restriction affects adipocyte differentiation and fatty acid composition of intramuscular fat in Iberian pigs [J].
Ayuso, M. ;
Ovilo, C. ;
Rodriguez-Bertos, A. ;
Rey, A. I. ;
Daza, A. ;
Fenandez, A. ;
Gonzalez-Bulnes, A. ;
Lopez-Bote, C. J. ;
Isabel, B. .
MEAT SCIENCE, 2015, 108 :9-16
[47]   Effects of Chinese Yam Polysaccharide on Intramuscular Fat and Fatty Acid Composition in Breast and Thigh Muscles of Broilers [J].
Guo, Liping ;
Chang, Yadi ;
Sun, Zhe ;
Deng, Jiahua ;
Jin, Yan ;
Shi, Mingyan ;
Zhang, Jinzhou ;
Miao, Zhiguo .
FOODS, 2023, 12 (07)
[48]   Effect of Dietary Grape Pomace on Fattening Rabbit Performance, Fatty Acid Composition, and Shelf Life of Meat [J].
Bouzaida, Mohamed D. ;
Resconi, Virginia C. ;
Gimeno, David ;
Romero, Jakeline V. ;
Calanche, Juan B. ;
Barahona, Marta ;
Olleta, Jose L. ;
Maria, Gustavo A. .
ANTIOXIDANTS, 2021, 10 (05)
[49]   The effect of lipid metabolism-related genes on intramuscular fat content and fatty acid composition in multiple muscles [J].
Liu, Chendong ;
Shen, Linyuan ;
Du, Jingjing ;
Wu, Xiaoqian ;
Luo, Jia ;
Pu, Qiang ;
Tan, Zhendong ;
Cheng, Xiao ;
Du, Jianguo ;
Yang, Qiong ;
Zhang, Shunhua ;
Zhu, Li .
ANIMAL PRODUCTION SCIENCE, 2018, 58 (11) :2003-2010
[50]   Effect of UBE3C polymorphisms on intramuscular fat content and fatty acid composition in Duroc pigs [J].
Supakankul, P. ;
Mekchay, S. .
GENETICS AND MOLECULAR RESEARCH, 2016, 15 (03)