Effect of weight at slaughter and breed on beef intramuscular lipid classes and fatty acid profile
The effect of slaughter weight and breed on the composition of intramuscular fat (IMF) of seven Spanish cattle breeds was studied. Lipid classes and fatty acids were evaluated in young bulls of seven local Spanish cattle breeds, Asturiana, Avileña, Morucha, Parda Alpina, Pirenaica, Retinta and Rubia...
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| Format: | Article |
| Language: | English |
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Elsevier
2010-01-01
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| Series: | Animal |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1751731110000923 |
| _version_ | 1798032828072460288 |
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| author | G. Indurain M.J. Beriain M.V. Sarries K. Insausti |
| author_facet | G. Indurain M.J. Beriain M.V. Sarries K. Insausti |
| author_sort | G. Indurain |
| collection | DOAJ |
| description | The effect of slaughter weight and breed on the composition of intramuscular fat (IMF) of seven Spanish cattle breeds was studied. Lipid classes and fatty acids were evaluated in young bulls of seven local Spanish cattle breeds, Asturiana, Avileña, Morucha, Parda Alpina, Pirenaica, Retinta and Rubia Gallega, slaughtered at a live weight of 320 kg (veal type) and 550 kg (yearling bull type). Higher slaughter weight and early maturating breeds produced higher IMF content in the longissimus muscle (P < 0.001), which was linked to a reduction in phospholipids, monoglycerides, diglycerides, cholesterol and free-fatty acids content, but an increase in triacylglycerols. Besides, heavier animals displayed a higher percentage of saturated and monounsaturated fatty acids (MUFA), but a lower polyunsaturated fatty acids (PUFA) percentage (P < 0.001). The increase in triglycerides (TG), saturated fatty acids (SFA) and MUFA illustrates the increasing importance of lipid storage as fattening proceeds and the acquisition of ruminal functionality. The feeding system based on cereals had a strong influence on the fatty acid profile, giving the studied beef a relatively high PUFA/SFA and n-6/n-3 ratios. |
| first_indexed | 2024-04-11T20:19:16Z |
| format | Article |
| id | doaj.art-591b641f93064076a52596ade0fc7352 |
| institution | Directory Open Access Journal |
| issn | 1751-7311 |
| language | English |
| last_indexed | 2024-04-11T20:19:16Z |
| publishDate | 2010-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Animal |
| spelling | doaj.art-591b641f93064076a52596ade0fc73522022-12-22T04:04:52ZengElsevierAnimal1751-73112010-01-0141017711780Effect of weight at slaughter and breed on beef intramuscular lipid classes and fatty acid profileG. Indurain0M.J. Beriain1M.V. Sarries2K. Insausti3Escuela Técnica Superior de Ingenieros Agrónomos, Universidad Pública de Navarra, Campus de Arrosadía 31006, Pamplona, SpainEscuela Técnica Superior de Ingenieros Agrónomos, Universidad Pública de Navarra, Campus de Arrosadía 31006, Pamplona, SpainEscuela Técnica Superior de Ingenieros Agrónomos, Universidad Pública de Navarra, Campus de Arrosadía 31006, Pamplona, SpainEscuela Técnica Superior de Ingenieros Agrónomos, Universidad Pública de Navarra, Campus de Arrosadía 31006, Pamplona, SpainThe effect of slaughter weight and breed on the composition of intramuscular fat (IMF) of seven Spanish cattle breeds was studied. Lipid classes and fatty acids were evaluated in young bulls of seven local Spanish cattle breeds, Asturiana, Avileña, Morucha, Parda Alpina, Pirenaica, Retinta and Rubia Gallega, slaughtered at a live weight of 320 kg (veal type) and 550 kg (yearling bull type). Higher slaughter weight and early maturating breeds produced higher IMF content in the longissimus muscle (P < 0.001), which was linked to a reduction in phospholipids, monoglycerides, diglycerides, cholesterol and free-fatty acids content, but an increase in triacylglycerols. Besides, heavier animals displayed a higher percentage of saturated and monounsaturated fatty acids (MUFA), but a lower polyunsaturated fatty acids (PUFA) percentage (P < 0.001). The increase in triglycerides (TG), saturated fatty acids (SFA) and MUFA illustrates the increasing importance of lipid storage as fattening proceeds and the acquisition of ruminal functionality. The feeding system based on cereals had a strong influence on the fatty acid profile, giving the studied beef a relatively high PUFA/SFA and n-6/n-3 ratios.http://www.sciencedirect.com/science/article/pii/S1751731110000923lipid classesfatty acidsbeefbreedslaughter weight |
| spellingShingle | G. Indurain M.J. Beriain M.V. Sarries K. Insausti Effect of weight at slaughter and breed on beef intramuscular lipid classes and fatty acid profile Animal lipid classes fatty acids beef breed slaughter weight |
| title | Effect of weight at slaughter and breed on beef intramuscular lipid classes and fatty acid profile |
| title_full | Effect of weight at slaughter and breed on beef intramuscular lipid classes and fatty acid profile |
| title_fullStr | Effect of weight at slaughter and breed on beef intramuscular lipid classes and fatty acid profile |
| title_full_unstemmed | Effect of weight at slaughter and breed on beef intramuscular lipid classes and fatty acid profile |
| title_short | Effect of weight at slaughter and breed on beef intramuscular lipid classes and fatty acid profile |
| title_sort | effect of weight at slaughter and breed on beef intramuscular lipid classes and fatty acid profile |
| topic | lipid classes fatty acids beef breed slaughter weight |
| url | http://www.sciencedirect.com/science/article/pii/S1751731110000923 |
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