Beef lipids in relation to animal breed and nutrition in Argentina
Fatty acid (FA) composition of intramuscular fat (IMF) in M. Longissimus dorsi (LD) was measured in 72 steers from Angus (A), Charolais × Angus (CHA×A) and Holstein Argentine (HA) breeds. The steers were allotted to four dietary treatments of six animals each: T1, steers grazed on pasture; T2, steer...
| Autores principales: | , , , , , , |
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| Formato: | info:ar-repo/semantics/artículo |
| Lenguaje: | Inglés |
| Publicado: |
Elsevier
2019
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| Materias: | |
| Acceso en línea: | https://www.sciencedirect.com/science/article/pii/S0309174007003233 http://hdl.handle.net/20.500.12123/6053 https://doi.org/10.1016/j.meatsci.2007.10.019 |
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| author | Garcia, Pilar Teresa Pensel, Norma Ana Sancho, Ana Maria Latimori, Nestor Juan Kloster, Andres Maria Amigone, Miguel Angel Casal, Jorge Jose |
| author_browse | Amigone, Miguel Angel Casal, Jorge Jose Garcia, Pilar Teresa Kloster, Andres Maria Latimori, Nestor Juan Pensel, Norma Ana Sancho, Ana Maria |
| author_facet | Garcia, Pilar Teresa Pensel, Norma Ana Sancho, Ana Maria Latimori, Nestor Juan Kloster, Andres Maria Amigone, Miguel Angel Casal, Jorge Jose |
| author_sort | Garcia, Pilar Teresa |
| collection | INTA Digital |
| description | Fatty acid (FA) composition of intramuscular fat (IMF) in M. Longissimus dorsi (LD) was measured in 72 steers from Angus (A), Charolais × Angus (CHA×A) and Holstein Argentine (HA) breeds. The steers were allotted to four dietary treatments of six animals each: T1, steers grazed on pasture; T2, steers supplemented with cracked corn grain (0.7% of live-weight) daily and free access to pasture; T3, steers supplemented with cracked corn grain (1% of live-weight) daily and free access to pasture; and T4, feedlot (concentrate based on corn, alfalfa hay and soybean meal without access to pasture). At slaughter weight, samples of LD at the 11th rib were used for intramuscular lipid analysis. The diet was shown to be more important than breed in determining FA composition. Pasture beef had higher percentages of saturated fatty acids (SFA), n−3 polyunsaturated fatty acids (PUFA) and conjugated linoleic acid (CLA) and lower percentages of IMF, monounsaturated fatty acids (MUFA), n−6 PUFA and n−6/n−3 ratios than feedlot beef. HA beef presented lower percentages of SFA and more MUFA with a higher n−6/n−3 ratio than A and CHA×A. Comparing grass and feedlot beef the amounts of FA in muscle (mg/100 g) were, respectively 18:3 n−3 (44 vs. 11 mg), CLA (20 vs. 12 mg), 20:5 n−3 (20 vs. 11 mg), 22:5 n−5 (20 vs. 11 mg), 22:6 n−3 (12 vs. 6 mg) and n−3 PUFA (84 vs. 32 mg). Feedlot beef has more SFA (1372 vs. 1081 mg), MUFA (1574 vs. 1078 mg), PUFA (350 vs. 227 mg) and n−6 PUFA (318 vs.143 mg). |
| format | info:ar-repo/semantics/artículo |
| id | INTA6053 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2019 |
| publishDateRange | 2019 |
| publishDateSort | 2019 |
| publisher | Elsevier |
| publisherStr | Elsevier |
| record_format | dspace |
| spelling | INTA60532019-10-08T12:14:41Z Beef lipids in relation to animal breed and nutrition in Argentina Garcia, Pilar Teresa Pensel, Norma Ana Sancho, Ana Maria Latimori, Nestor Juan Kloster, Andres Maria Amigone, Miguel Angel Casal, Jorge Jose Beef Lipids Fatty Acids Adipose Tissue Carne de Res Lípidos Ácidos Grasos Tejido Adiposo Argentina Beef Lipids Conjugated Linoleic Acid Isomers (CLA) Intramuscular Fat Lípidos de Carne Isómeros de Acido Linoleico Conjugado (CLA) Grasa Intramuscular Fatty acid (FA) composition of intramuscular fat (IMF) in M. Longissimus dorsi (LD) was measured in 72 steers from Angus (A), Charolais × Angus (CHA×A) and Holstein Argentine (HA) breeds. The steers were allotted to four dietary treatments of six animals each: T1, steers grazed on pasture; T2, steers supplemented with cracked corn grain (0.7% of live-weight) daily and free access to pasture; T3, steers supplemented with cracked corn grain (1% of live-weight) daily and free access to pasture; and T4, feedlot (concentrate based on corn, alfalfa hay and soybean meal without access to pasture). At slaughter weight, samples of LD at the 11th rib were used for intramuscular lipid analysis. The diet was shown to be more important than breed in determining FA composition. Pasture beef had higher percentages of saturated fatty acids (SFA), n−3 polyunsaturated fatty acids (PUFA) and conjugated linoleic acid (CLA) and lower percentages of IMF, monounsaturated fatty acids (MUFA), n−6 PUFA and n−6/n−3 ratios than feedlot beef. HA beef presented lower percentages of SFA and more MUFA with a higher n−6/n−3 ratio than A and CHA×A. Comparing grass and feedlot beef the amounts of FA in muscle (mg/100 g) were, respectively 18:3 n−3 (44 vs. 11 mg), CLA (20 vs. 12 mg), 20:5 n−3 (20 vs. 11 mg), 22:5 n−5 (20 vs. 11 mg), 22:6 n−3 (12 vs. 6 mg) and n−3 PUFA (84 vs. 32 mg). Feedlot beef has more SFA (1372 vs. 1081 mg), MUFA (1574 vs. 1078 mg), PUFA (350 vs. 227 mg) and n−6 PUFA (318 vs.143 mg). Fil: Garcia, Pilar Teresa. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Tecnología de Alimentos; Argentina Fil: Pensel, Norma Ana. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Tecnología de Alimentos; Argentina Fil: Sancho, Ana Maria. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Tecnología de Alimentos; Argentina Fil: Latimori, Nestor Juan. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Marcos Juárez; Argentina. Fil: Kloster, Andres María. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Marcos Juárez; Argentina. Fil: Amigone, Miguel Angel. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Marcos Juárez; Argentina. Fil: Casal, Jorge Jose. Instituto Nacional de Tecnología Agropecuaria (INTA). Centro Nacional de Investigaciones; Argentina. 2019-10-08T12:00:44Z 2019-10-08T12:00:44Z 2007-10-26 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion https://www.sciencedirect.com/science/article/pii/S0309174007003233 http://hdl.handle.net/20.500.12123/6053 0309-1740 https://doi.org/10.1016/j.meatsci.2007.10.019 eng info:eu-repo/semantics/restrictedAccess application/pdf Elsevier Meat Science 79 (3) : 500-508 (July 2008) |
| spellingShingle | Beef Lipids Fatty Acids Adipose Tissue Carne de Res Lípidos Ácidos Grasos Tejido Adiposo Argentina Beef Lipids Conjugated Linoleic Acid Isomers (CLA) Intramuscular Fat Lípidos de Carne Isómeros de Acido Linoleico Conjugado (CLA) Grasa Intramuscular Garcia, Pilar Teresa Pensel, Norma Ana Sancho, Ana Maria Latimori, Nestor Juan Kloster, Andres Maria Amigone, Miguel Angel Casal, Jorge Jose Beef lipids in relation to animal breed and nutrition in Argentina |
| title | Beef lipids in relation to animal breed and nutrition in Argentina |
| title_full | Beef lipids in relation to animal breed and nutrition in Argentina |
| title_fullStr | Beef lipids in relation to animal breed and nutrition in Argentina |
| title_full_unstemmed | Beef lipids in relation to animal breed and nutrition in Argentina |
| title_short | Beef lipids in relation to animal breed and nutrition in Argentina |
| title_sort | beef lipids in relation to animal breed and nutrition in argentina |
| topic | Beef Lipids Fatty Acids Adipose Tissue Carne de Res Lípidos Ácidos Grasos Tejido Adiposo Argentina Beef Lipids Conjugated Linoleic Acid Isomers (CLA) Intramuscular Fat Lípidos de Carne Isómeros de Acido Linoleico Conjugado (CLA) Grasa Intramuscular |
| url | https://www.sciencedirect.com/science/article/pii/S0309174007003233 http://hdl.handle.net/20.500.12123/6053 https://doi.org/10.1016/j.meatsci.2007.10.019 |
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