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Registro Completo |
Biblioteca(s): |
Embrapa Pantanal. |
Data corrente: |
25/10/2001 |
Data da última atualização: |
25/10/2001 |
Autoria: |
GALDINO, S.; RISSO, A.; SORIANO, B. M. A.; VIEIRA, L. M.; POTT, A.; PADOVANI, C. R.; MELO, E. C.; ALMEIDA JUNIOR, N. de. |
Afiliação: |
Embrapa Pantanal (Corumba, MS); Universidade Federal do Rio Grande do Sul (Porto Alegre, RS); Embrapa Gado de Corte (Campo Grande, MS); CNPq-RHAE - bolsista (Corumba, MS). |
Título: |
Hydrological laminar erosion in 1994 at the upper Taquari River basin - Brazil. |
Ano de publicação: |
2001 |
Fonte/Imprenta: |
In: INTERNATIONAL CONFERENCE ON LAND DEGRADATION AND MEETING OF THE IUSS SUBCOMMISION C - SOIL AND WATER CONSERVATION, 3., 2001, Rio de Janeiro. Land degradation: new trends towards global sustainability - conference guide ... Rio de Janeiro: Embrapa Solos, 2001. p.78. |
Idioma: |
Inglês |
Conteúdo: |
The upper Taquari River basin (BAT) has an area of 28.452 km2 and presents serious problems of soil hydrological erosion. The evaluation of the erosion processes will drive future actions to minimize the soil erosion in the BAT and the consequences to the Pantanal. The average annual precipitation erosivity was of 7.914,3 Mj mm ha-1 year-1. The average soil erodibility was 0,0356 t h Mj-1. The topographic factor "LS" presented the higher range. The average soil loss potential was 555,6 t ha-1 year-1. In 1994, 41,97% (1.194.130 ha) of the BAT was covered by native vegetation, the cultivated pastures covered 51.85% of the basin surface (1.475.290 ha) and the soybean plantation areas was 167.650 ha (5,89% of the BAT). The average soil loss for the whole upper Taquari basin from 1994, was estimated as 70,39 t ha-1 year-1, classified as high erosion level. The light erosion level occurred in 41,62% of the BAT. In 28.84% of the basin the erosion level was moderated, in 21,75% was high and in 7,79 was very high. |
Palavras-Chave: |
Bacia do Rio Taquari; Erosao hidrologica; Hydrological erosion; Taquari River Basin. |
Thesagro: |
Solo. |
Thesaurus Nal: |
Pantanal; soil. |
Categoria do assunto: |
-- |
Marc: |
LEADER 02015naa a2200289 a 4500 001 1809458 005 2001-10-25 008 2001 bl uuuu u00u1 u #d 100 1 $aGALDINO, S. 245 $aHydrological laminar erosion in 1994 at the upper Taquari River basin - Brazil. 260 $c2001 520 $aThe upper Taquari River basin (BAT) has an area of 28.452 km2 and presents serious problems of soil hydrological erosion. The evaluation of the erosion processes will drive future actions to minimize the soil erosion in the BAT and the consequences to the Pantanal. The average annual precipitation erosivity was of 7.914,3 Mj mm ha-1 year-1. The average soil erodibility was 0,0356 t h Mj-1. The topographic factor "LS" presented the higher range. The average soil loss potential was 555,6 t ha-1 year-1. In 1994, 41,97% (1.194.130 ha) of the BAT was covered by native vegetation, the cultivated pastures covered 51.85% of the basin surface (1.475.290 ha) and the soybean plantation areas was 167.650 ha (5,89% of the BAT). The average soil loss for the whole upper Taquari basin from 1994, was estimated as 70,39 t ha-1 year-1, classified as high erosion level. The light erosion level occurred in 41,62% of the BAT. In 28.84% of the basin the erosion level was moderated, in 21,75% was high and in 7,79 was very high. 650 $aPantanal 650 $asoil 650 $aSolo 653 $aBacia do Rio Taquari 653 $aErosao hidrologica 653 $aHydrological erosion 653 $aTaquari River Basin 700 1 $aRISSO, A. 700 1 $aSORIANO, B. M. A. 700 1 $aVIEIRA, L. M. 700 1 $aPOTT, A. 700 1 $aPADOVANI, C. R. 700 1 $aMELO, E. C. 700 1 $aALMEIDA JUNIOR, N. de 773 $tIn: INTERNATIONAL CONFERENCE ON LAND DEGRADATION AND MEETING OF THE IUSS SUBCOMMISION C - SOIL AND WATER CONSERVATION, 3., 2001, Rio de Janeiro. Land degradation: new trends towards global sustainability - conference guide ... Rio de Janeiro: Embrapa Solos, 2001. p.78.
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Embrapa Pantanal (CPAP) |
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Registro Completo
Biblioteca(s): |
Embrapa Instrumentação; Embrapa Milho e Sorgo. |
Data corrente: |
06/02/2024 |
Data da última atualização: |
05/03/2024 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 2 |
Autoria: |
RODRIGUES, B. M.; ALVARENGA, R. C.; LANNA, D. P. D.; OLIVEIRA, A. de L.; CERIBELIE, C.; CORREIA, B. S. B.; COLNAGO, L. A.; CARDOSO, D. R.; SOUZA, F. A. de; LOPES, L. S. |
Afiliação: |
BARBARA MARTINS RODRIGUES, UNIVERSIDADE FEDERAL DE MINAS GERAIS; RAMON COSTA ALVARENGA, CNPMS; DANTE PAZZANESE DUARTE LANNA, UNIVERSIDADE FEDERAL DE MINAS GERAIS; AFONSO DE LIGUORI OLIVEIRA, UNIVERSIDADE DE SAO PAULO; CAROLINE CERIBELIE, UNIVERSIDADE DE SAO PAULO; BANNY SILVA BARBOSA CORREIA, UNIVERSIDADE DE SÃO PAULO; LUIZ ALBERTO COLNAGO, CNPDIA; DANIEL RODRIGUES CARDOSO, UNIVERSIDADE DE SAO PAULO; FERNANDO ANTÔNIO DE SOUZA, UNIVERSIDADE FEDERAL DE MINAS GERAIS; LEANDRO SÂMIA LOPES, UNIVERSIDADE FEDERAL DE MINAS GERAIS. |
Título: |
Aged-beef quality and fatty acid profile of subcutaneous fat from Nellore and Nellore × Angus crossbred young bulls finished in the feedlot with a high-lipid diet. |
Ano de publicação: |
2024 |
Fonte/Imprenta: |
Animal Production Science, v. 64, n. 1, AN23165, 2024. |
DOI: |
https://doi.org/10.1071/AN23165 |
Idioma: |
Inglês |
Conteúdo: |
Context. Although beef consumption has been linked to increased blood cholesterol, it has positive impacts on human health and provides essential nutrients of high biological value. Aims. This study investigated the effects of aging time on beef quality, the chemical composition of the Longissimus thoracis (LT) muscle, and the metabolite and fatty acid profile of the subcutaneous fat from young bulls finished in feedlot with a high-lipid diet. Methods. Fifty young bulls were divided into groups following their breed composition, Nellore (n = 25) and Angus × Nellore crossbred (n = 25), and com randomly assigned into four pens. The feedlot phase consisted of 105 days of feed, and the diet (80% concentrate) was formulated to meet or safely exceed the requirements of beef cattle to achieve an average daily gain of 1.6 kg/day. After slaughter, meat samples were collected between the 11th and 13th ribs 24 h postmortem. Steaks were aged for 1, 14, 28, and 42 days. Key results. No differences were observed for total weight loss, drip loss, and cooking loss between the genetic groups (P > 0.05). An increase in lipid oxidation was observed for TBARS in the LT beef and subcutaneous fat (P < 0.01). Shear force was influenced by breed and aging time (P < 0.01). There was a significant interaction between aging time and the parameters L* a*, b* c*, and h* (P < 0.01). The crossbred animals had greater (P < 0.01) concentrations of collagen, and Nellore had greater (P < 0.01) concentration of moisture in their LT beef. In total, 33 metabolites were identified in beef extract, and differences were observed in beef from both groups. Nellore animals had higher concentrations of polyunsaturated fatty acids and conjugated linoleic acid. Conclusions. The shear force, collagen concentration, and moisture were affected by breeds, while the aging time affected lipid oxidation, shear force, and colour parameters. Different breeds and a high-lipid diet modified the metabolite profile of meat and the profile of subcutaneous fat. Implications. These findings suggest that genetic manipulation could potentially be used to improve beef quality. MenosContext. Although beef consumption has been linked to increased blood cholesterol, it has positive impacts on human health and provides essential nutrients of high biological value. Aims. This study investigated the effects of aging time on beef quality, the chemical composition of the Longissimus thoracis (LT) muscle, and the metabolite and fatty acid profile of the subcutaneous fat from young bulls finished in feedlot with a high-lipid diet. Methods. Fifty young bulls were divided into groups following their breed composition, Nellore (n = 25) and Angus × Nellore crossbred (n = 25), and com randomly assigned into four pens. The feedlot phase consisted of 105 days of feed, and the diet (80% concentrate) was formulated to meet or safely exceed the requirements of beef cattle to achieve an average daily gain of 1.6 kg/day. After slaughter, meat samples were collected between the 11th and 13th ribs 24 h postmortem. Steaks were aged for 1, 14, 28, and 42 days. Key results. No differences were observed for total weight loss, drip loss, and cooking loss between the genetic groups (P > 0.05). An increase in lipid oxidation was observed for TBARS in the LT beef and subcutaneous fat (P < 0.01). Shear force was influenced by breed and aging time (P < 0.01). There was a significant interaction between aging time and the parameters L* a*, b* c*, and h* (P < 0.01). The crossbred animals had greater (P < 0.01) concentrations of collagen, and Nellore had greater (P < 0.01) concentration o... Mostrar Tudo |
Palavras-Chave: |
Composição da carne; Metabolômica. |
Thesagro: |
Ácido Linoléico; Bovino; Carne; Confinamento; Genética Animal; Lipídio; Nutrição Animal. |
Thesaurus NAL: |
Animal nutrition; Beef; Conjugated linoleic acid; Feedlots; Genetics; Lipids; Meat composition; Metabolomics. |
Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
Marc: |
LEADER 03468naa a2200445 a 4500 001 2161715 005 2024-03-05 008 2024 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.1071/AN23165$2DOI 100 1 $aRODRIGUES, B. M. 245 $aAged-beef quality and fatty acid profile of subcutaneous fat from Nellore and Nellore × Angus crossbred young bulls finished in the feedlot with a high-lipid diet.$h[electronic resource] 260 $c2024 520 $aContext. Although beef consumption has been linked to increased blood cholesterol, it has positive impacts on human health and provides essential nutrients of high biological value. Aims. This study investigated the effects of aging time on beef quality, the chemical composition of the Longissimus thoracis (LT) muscle, and the metabolite and fatty acid profile of the subcutaneous fat from young bulls finished in feedlot with a high-lipid diet. Methods. Fifty young bulls were divided into groups following their breed composition, Nellore (n = 25) and Angus × Nellore crossbred (n = 25), and com randomly assigned into four pens. The feedlot phase consisted of 105 days of feed, and the diet (80% concentrate) was formulated to meet or safely exceed the requirements of beef cattle to achieve an average daily gain of 1.6 kg/day. After slaughter, meat samples were collected between the 11th and 13th ribs 24 h postmortem. Steaks were aged for 1, 14, 28, and 42 days. Key results. No differences were observed for total weight loss, drip loss, and cooking loss between the genetic groups (P > 0.05). An increase in lipid oxidation was observed for TBARS in the LT beef and subcutaneous fat (P < 0.01). Shear force was influenced by breed and aging time (P < 0.01). There was a significant interaction between aging time and the parameters L* a*, b* c*, and h* (P < 0.01). The crossbred animals had greater (P < 0.01) concentrations of collagen, and Nellore had greater (P < 0.01) concentration of moisture in their LT beef. In total, 33 metabolites were identified in beef extract, and differences were observed in beef from both groups. Nellore animals had higher concentrations of polyunsaturated fatty acids and conjugated linoleic acid. Conclusions. The shear force, collagen concentration, and moisture were affected by breeds, while the aging time affected lipid oxidation, shear force, and colour parameters. Different breeds and a high-lipid diet modified the metabolite profile of meat and the profile of subcutaneous fat. Implications. These findings suggest that genetic manipulation could potentially be used to improve beef quality. 650 $aAnimal nutrition 650 $aBeef 650 $aConjugated linoleic acid 650 $aFeedlots 650 $aGenetics 650 $aLipids 650 $aMeat composition 650 $aMetabolomics 650 $aÁcido Linoléico 650 $aBovino 650 $aCarne 650 $aConfinamento 650 $aGenética Animal 650 $aLipídio 650 $aNutrição Animal 653 $aComposição da carne 653 $aMetabolômica 700 1 $aALVARENGA, R. C. 700 1 $aLANNA, D. P. D. 700 1 $aOLIVEIRA, A. de L. 700 1 $aCERIBELIE, C. 700 1 $aCORREIA, B. S. B. 700 1 $aCOLNAGO, L. A. 700 1 $aCARDOSO, D. R. 700 1 $aSOUZA, F. A. de 700 1 $aLOPES, L. S. 773 $tAnimal Production Science$gv. 64, n. 1, AN23165, 2024.
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