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Registro Completo |
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Biblioteca(s): |
Embrapa Pecuária Sul. |
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Data corrente: |
07/12/2020 |
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Data da última atualização: |
07/12/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
CARDOSO, L. L.; TAROUCO, J. U.; MACNEIL, M. D.; LOBATO, J. F. P.; DAMBRÓS, M. C.; FREITAS, A. K. de; DEVICENZI, T.; FEIJÓ, F. D.; CARDOSO, F. F. |
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Afiliação: |
Leandro Lunardini Cardoso, UFRGS; Jaime Urdapilleta Tarouco, UFRGS; Michael D. MacNeil, DELTA G; José Fernando Piva Lobato, UFRGS; Mara Célia Dambrós, USP; Aline Kellermann de Freitas, UFRGS; Thais Devincenzi, UFRGS; Fernanda Dorneles Feijó, UFRGS; FERNANDO FLORES CARDOSO, CPPSUL. |
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Título: |
Sample size and prediction of weight and yield of individual cuts from Braford steers pistol hindquarters. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Scientia Agricola, v. 77, n. 4, e20180224, 2020. |
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ISSN: |
1678-992X |
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DOI: |
http://dx.doi.org/10.1590/1678-992X-2018-0224 |
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Idioma: |
Inglês |
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Conteúdo: |
ABSTRACT: Two hundred seventeen grass-finished Braford steers were assessed by ultrasonic scanning and subsequently harvested with their pistol hindquarters fabricated into boneless wholesale cuts. The Longissimus thoracis muscle area and subcutaneous fat depths were measured. The objectives of this study were: 1) to develop prediction equations for weights of the pistol hindquarter and high-value commercial cuts, and 2) to estimate sample size needed for experiments comparing pistol hindquarter retail product weight using either physically or ultrasonically measured carcass traits. Carcass measurements explained 44 % to 94 % of the variation in weights of individual cuts, whereas, measurements that were made using ultrasound explained 42 % to 90 % of the variation in the weights. Models used to predict the weight of pistol hindquarter retail product with carcass measures and ultrasound measures showed high coefficient of determination (R2 = 0.92 and 0.97, respectively). Whether based on carcass or ultrasound measures, models used to estimate weight percentage of fat trimmed from the pistol hindquarter had lack of fit. In general, models for individual cuts weights that used traits measured with ultrasound as independent variables approached the accuracy of models using carcass traits. Thus, only slightly greater samples sizes were required to have equivalent power to detect differences in retail product weights using ultrasound measures. For experiments of equivalent power, differences in the number of animals required may be offset by avoiding costs for slaughter and fabrication. Keywords: cattle, carcass, models, ultrasound MenosABSTRACT: Two hundred seventeen grass-finished Braford steers were assessed by ultrasonic scanning and subsequently harvested with their pistol hindquarters fabricated into boneless wholesale cuts. The Longissimus thoracis muscle area and subcutaneous fat depths were measured. The objectives of this study were: 1) to develop prediction equations for weights of the pistol hindquarter and high-value commercial cuts, and 2) to estimate sample size needed for experiments comparing pistol hindquarter retail product weight using either physically or ultrasonically measured carcass traits. Carcass measurements explained 44 % to 94 % of the variation in weights of individual cuts, whereas, measurements that were made using ultrasound explained 42 % to 90 % of the variation in the weights. Models used to predict the weight of pistol hindquarter retail product with carcass measures and ultrasound measures showed high coefficient of determination (R2 = 0.92 and 0.97, respectively). Whether based on carcass or ultrasound measures, models used to estimate weight percentage of fat trimmed from the pistol hindquarter had lack of fit. In general, models for individual cuts weights that used traits measured with ultrasound as independent variables approached the accuracy of models using carcass traits. Thus, only slightly greater samples sizes were required to have equivalent power to detect differences in retail product weights using ultrasound measures. For experiments of equivalent power,... Mostrar Tudo |
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Thesagro: |
Bovino; Carcaça; Ultrassom. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/218803/1/Cardoso-et-al-2020.pdf
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Marc: |
LEADER 02475naa a2200277 a 4500
001 2127710
005 2020-12-07
008 2020 bl uuuu u00u1 u #d
022 $a1678-992X
024 7 $ahttp://dx.doi.org/10.1590/1678-992X-2018-0224$2DOI
100 1 $aCARDOSO, L. L.
245 $aSample size and prediction of weight and yield of individual cuts from Braford steers pistol hindquarters.$h[electronic resource]
260 $c2020
520 $aABSTRACT: Two hundred seventeen grass-finished Braford steers were assessed by ultrasonic scanning and subsequently harvested with their pistol hindquarters fabricated into boneless wholesale cuts. The Longissimus thoracis muscle area and subcutaneous fat depths were measured. The objectives of this study were: 1) to develop prediction equations for weights of the pistol hindquarter and high-value commercial cuts, and 2) to estimate sample size needed for experiments comparing pistol hindquarter retail product weight using either physically or ultrasonically measured carcass traits. Carcass measurements explained 44 % to 94 % of the variation in weights of individual cuts, whereas, measurements that were made using ultrasound explained 42 % to 90 % of the variation in the weights. Models used to predict the weight of pistol hindquarter retail product with carcass measures and ultrasound measures showed high coefficient of determination (R2 = 0.92 and 0.97, respectively). Whether based on carcass or ultrasound measures, models used to estimate weight percentage of fat trimmed from the pistol hindquarter had lack of fit. In general, models for individual cuts weights that used traits measured with ultrasound as independent variables approached the accuracy of models using carcass traits. Thus, only slightly greater samples sizes were required to have equivalent power to detect differences in retail product weights using ultrasound measures. For experiments of equivalent power, differences in the number of animals required may be offset by avoiding costs for slaughter and fabrication. Keywords: cattle, carcass, models, ultrasound
650 $aBovino
650 $aCarcaça
650 $aUltrassom
700 1 $aTAROUCO, J. U.
700 1 $aMACNEIL, M. D.
700 1 $aLOBATO, J. F. P.
700 1 $aDAMBRÓS, M. C.
700 1 $aFREITAS, A. K. de
700 1 $aDEVICENZI, T.
700 1 $aFEIJÓ, F. D.
700 1 $aCARDOSO, F. F.
773 $tScientia Agricola$gv. 77, n. 4, e20180224, 2020.
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Registro original: |
Embrapa Pecuária Sul (CPPSUL) |
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Registro Completo
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Biblioteca(s): |
Embrapa Agroenergia; Embrapa Agroindústria de Alimentos. |
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Data corrente: |
19/09/2017 |
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Data da última atualização: |
08/12/2017 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
RAMOS, E. Z.; MIDORIKAWA, G. E. O.; FAVARO, L. C. de L.; SILVA, A. S. da; GOTTSCHALK, L. M. F.; BON, E. P. S. |
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Afiliação: |
Elisa Z. Ramos, UFRJ; Gláucia E. O. Midorikawa; LEIA CECILIA DE LIMA FAVARO, CNPAE; Ayla S. da Silva, INT; LEDA MARIA FORTES GOTTSCHALK, CTAA; Elba P. S. Bon, UFRJ. |
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Título: |
Agrobacterium tumefaciens-mediated transformation of Trichoderma harzianum CFAM-422 using an herbicide resistance gene as selection marker. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
In: SIMPÓSIO NACIONAL DE BIOPROCESSOS, 21.; SIMPÓSIO DE HIDRÓLISE ENZIMÁTICA DE BIOMASSA, 12., 2017, Aracaju, SE. [Proceedings ...]. São Paulo: Associação Brasileira de Engenharia Química, 2017. |
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ISSN: |
2447-2816 |
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Idioma: |
Inglês |
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Notas: |
SINAFERM; SHEB. 3 a 6 de setembro. Seção Trabalhos. Ref. 59006. |
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Conteúdo: |
The use of lignocellulosic materials that are the constituents of the plant cell wall have shown to be a great opportunity for sustainable industrial development. The polysaccharide part of these materials, the cellulose and the hemicellulose, can be degraded into their monomeric sugars by microorganisms, such as Trichoderma harzianum, that secrete extracellular enzymes. However, the industrial production of hydrolytic enzymes rely on the development of molecular biology tools to achieve the economical production of enzyme pools with greater hydrolytic potential. In this work the fungus T. harzianum (CFAM-422) was transformed by Agrobacterium tumefaciens and a herbicide was used as a selective agent, making it an efficient strategy to obtain strains with higher potential for the hydrolysis of lignocellulosic materials. |
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Palavras-Chave: |
Biologia de Sistemas Aplicadas a Bioprocessos; Biomassa lignocelulósica. |
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Thesagro: |
Biologia Molecular; Trichoderma Harzianum. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/164848/1/galoa-proceedings-sinaferm-2017-59006-agrobacterium-tu.pdf
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Marc: |
LEADER 01852nam a2200241 a 4500
001 2076996
005 2017-12-08
008 2017 bl uuuu u00u1 u #d
022 $a2447-2816
100 1 $aRAMOS, E. Z.
245 $aAgrobacterium tumefaciens-mediated transformation of Trichoderma harzianum CFAM-422 using an herbicide resistance gene as selection marker.$h[electronic resource]
260 $aIn: SIMPÓSIO NACIONAL DE BIOPROCESSOS, 21.; SIMPÓSIO DE HIDRÓLISE ENZIMÁTICA DE BIOMASSA, 12., 2017, Aracaju, SE. [Proceedings ...]. São Paulo: Associação Brasileira de Engenharia Química$c2017
500 $aSINAFERM; SHEB. 3 a 6 de setembro. Seção Trabalhos. Ref. 59006.
520 $aThe use of lignocellulosic materials that are the constituents of the plant cell wall have shown to be a great opportunity for sustainable industrial development. The polysaccharide part of these materials, the cellulose and the hemicellulose, can be degraded into their monomeric sugars by microorganisms, such as Trichoderma harzianum, that secrete extracellular enzymes. However, the industrial production of hydrolytic enzymes rely on the development of molecular biology tools to achieve the economical production of enzyme pools with greater hydrolytic potential. In this work the fungus T. harzianum (CFAM-422) was transformed by Agrobacterium tumefaciens and a herbicide was used as a selective agent, making it an efficient strategy to obtain strains with higher potential for the hydrolysis of lignocellulosic materials.
650 $aBiologia Molecular
650 $aTrichoderma Harzianum
653 $aBiologia de Sistemas Aplicadas a Bioprocessos
653 $aBiomassa lignocelulósica
700 1 $aMIDORIKAWA, G. E. O.
700 1 $aFAVARO, L. C. de L.
700 1 $aSILVA, A. S. da
700 1 $aGOTTSCHALK, L. M. F.
700 1 $aBON, E. P. S.
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Registro original: |
Embrapa Agroindústria de Alimentos (CTAA) |
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