Beef production from dairy bulls under two different production systems and its effect on the fatty acid profile and beef quality

Bulls in dairy production are usually slaughtered at an early age to avoid production problems and unnecessary costs. However, the animals could be a source of additional income and better quality meat. The objective of this work was to determine the characteristic and quantity of fatty acids of the...

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Autores principales:	Catrileo,Adrián, Morales,Rodrigo, Rojas,Claudio, Cancino,David
Lenguaje:	English
Publicado:	Instituto de Investigaciones Agropecuarias, INIA 2014
Materias:	Beef quality Brassica oleracea CLA fatty acids Holstein Friesian bulls
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392014000300017
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spelling	oai:scielo:S0718-583920140003000172018-10-01Beef production from dairy bulls under two different production systems and its effect on the fatty acid profile and beef qualityCatrileo,AdriánMorales,RodrigoRojas,ClaudioCancino,David Beef quality Brassica oleracea CLA fatty acids Holstein Friesian bulls Bulls in dairy production are usually slaughtered at an early age to avoid production problems and unnecessary costs. However, the animals could be a source of additional income and better quality meat. The objective of this work was to determine the characteristic and quantity of fatty acids of the Longissimus thoracis muscle of dairy bulls finished at pasture and in an intensive feeding system. Sixteen 14-mo old Holstein Friesian dairy bulls with initial live weights (LW) of 340 ± 20 kg were randomly assigned to bulls with daily pasture silage and kale (Brassica oleracea L.) supplements and 1.0% concentrate at pasture (T1) and bulls with pasture silage supplements and 2% concentrate in confinement (T2). No differences (P > 0.05) were found between treatments for dressing percentage, rib eye area, and fat cover when animals were slaughtered at 21-mo, with LW 550 kg. However, kidney fat for T1 and T2 of 4.44 and 2.61 kg an-1, respectively, were different (P < 0.05) as was pH, where T2 had a higher value (5.72) than T1 (5.46). Significant differences (P < 0.05) between treatments were found for all polyunsaturated fatty acids (PUFA), conjugated linoleic acid (CLA) c-9, t-11, C18:2 n-6 trans, C18:3 n-3, C22:5 n-3, C22:6 n-3, with higher levels for T1. Beef from the forage-fed bulls (T1) had an n-6: n-3 ratio below 4.0.info:eu-repo/semantics/openAccessInstituto de Investigaciones Agropecuarias, INIAChilean journal of agricultural research v.74 n.3 20142014-09-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392014000300017en10.4067/S0718-58392014000300017
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Beef quality Brassica oleracea CLA fatty acids Holstein Friesian bulls
spellingShingle	Beef quality Brassica oleracea CLA fatty acids Holstein Friesian bulls Catrileo,Adrián Morales,Rodrigo Rojas,Claudio Cancino,David Beef production from dairy bulls under two different production systems and its effect on the fatty acid profile and beef quality
description	Bulls in dairy production are usually slaughtered at an early age to avoid production problems and unnecessary costs. However, the animals could be a source of additional income and better quality meat. The objective of this work was to determine the characteristic and quantity of fatty acids of the Longissimus thoracis muscle of dairy bulls finished at pasture and in an intensive feeding system. Sixteen 14-mo old Holstein Friesian dairy bulls with initial live weights (LW) of 340 ± 20 kg were randomly assigned to bulls with daily pasture silage and kale (Brassica oleracea L.) supplements and 1.0% concentrate at pasture (T1) and bulls with pasture silage supplements and 2% concentrate in confinement (T2). No differences (P > 0.05) were found between treatments for dressing percentage, rib eye area, and fat cover when animals were slaughtered at 21-mo, with LW 550 kg. However, kidney fat for T1 and T2 of 4.44 and 2.61 kg an-1, respectively, were different (P < 0.05) as was pH, where T2 had a higher value (5.72) than T1 (5.46). Significant differences (P < 0.05) between treatments were found for all polyunsaturated fatty acids (PUFA), conjugated linoleic acid (CLA) c-9, t-11, C18:2 n-6 trans, C18:3 n-3, C22:5 n-3, C22:6 n-3, with higher levels for T1. Beef from the forage-fed bulls (T1) had an n-6: n-3 ratio below 4.0.
author	Catrileo,Adrián Morales,Rodrigo Rojas,Claudio Cancino,David
author_facet	Catrileo,Adrián Morales,Rodrigo Rojas,Claudio Cancino,David
author_sort	Catrileo,Adrián
title	Beef production from dairy bulls under two different production systems and its effect on the fatty acid profile and beef quality
title_short	Beef production from dairy bulls under two different production systems and its effect on the fatty acid profile and beef quality
title_full	Beef production from dairy bulls under two different production systems and its effect on the fatty acid profile and beef quality
title_fullStr	Beef production from dairy bulls under two different production systems and its effect on the fatty acid profile and beef quality
title_full_unstemmed	Beef production from dairy bulls under two different production systems and its effect on the fatty acid profile and beef quality
title_sort	beef production from dairy bulls under two different production systems and its effect on the fatty acid profile and beef quality
publisher	Instituto de Investigaciones Agropecuarias, INIA
publishDate	2014
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392014000300017
work_keys_str_mv	AT catrileoadrian beefproductionfromdairybullsundertwodifferentproductionsystemsanditseffectonthefattyacidprofileandbeefquality AT moralesrodrigo beefproductionfromdairybullsundertwodifferentproductionsystemsanditseffectonthefattyacidprofileandbeefquality AT rojasclaudio beefproductionfromdairybullsundertwodifferentproductionsystemsanditseffectonthefattyacidprofileandbeefquality AT cancinodavid beefproductionfromdairybullsundertwodifferentproductionsystemsanditseffectonthefattyacidprofileandbeefquality
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Beef production from dairy bulls under two different production systems and its effect on the fatty acid profile and beef quality

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