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| Registros recuperados : 4 | |
| 3. |  | SANTOS, J. D. F.; EUFRASIO, R. O.; PINHEIRO, G. F. M.; ALVES, F. R.; CARVALHO, M. A. M.; MACHADO JÚNIOR, A. A. N. Influência da estação do ano sobre a estrutura testicular em ovinos explorados no sul do Estado do Piauí. Pesquisa Veterinária Brasileira, Brasília, DF, v. 35, n. 11, p. 933-939, nov. 2015.| Biblioteca(s): Embrapa Unidades Centrais. |
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| 4. | | LIMA, M. A. de; EBERHARDT, D. S.; PESSOA, M. C. P. Y.; FRIGHETTO, R. T. S.; VALÉRIO NETO, S.; PLEC, D. F.; PINHEIRO, G. F.; OLIVEIRA, D. N. S.; BACAN, M. Emissão de metano em lavouras de arroz irrigado sob sistema pré-germinado. In: CONGRESSO BRASILEIRO DE ARROZ IRRIGADO, 5.; REUNIÃO DA CULTURADO ARROZ IRRIGADO, 27., 2007, Pelotas. Anais... Pelotas: Embrapa Clima Temperado, 2007. v.2, p.417-419.| Biblioteca(s): Embrapa Meio Ambiente. |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Instrumentação. Para informações adicionais entre em contato com cnpdia.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Instrumentação. |
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Data corrente: |
22/12/1999 |
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Data da última atualização: |
22/12/1999 |
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Autoria: |
BISCEGLI, C. I.; EIRAS, J. A. |
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Afiliação: |
EMBRAPA-CNPDIA; UFSCar-Depto. Fisica. |
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Título: |
Development of a portable unltrasound equipment for backfat evaluation of live pigs. |
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Ano de publicação: |
1996 |
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Fonte/Imprenta: |
In: INTERNATIONAL CONFERENCE ON PHYSICS AND INDUSTRIAL DEVELOPMENT: BRIDGING THE GAP, 2., July 1996, Belo Horizonte, MG. Abstracts... Belo Horizonte: UFMG, 1996. |
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Páginas: |
PB 03. |
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Idioma: |
Inglês |
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Conteúdo: |
For many years the selection of breeding animals has been concentrated around reproduction skills, growth rate, feed efficiency and temperament. These traits still play an important role, but nowadays consumers and slaughterhouses are demanding high quality pork meat and price systems have been designed to pay for lean and not fat. Before the advent of ultrasound, backfat scan in live pigs was restricted to the use of a metallic ruler, which beside time consumption for operation, also require skin perforation of animals, which cause little wound and discomfort to them. The development of a non-invasive portable ultrasound equipment allowed to avoid those inconveniencies by providing fast, safety and precise measurements of fat depth. The present report describes the complete development of a portable ultrasonic instrument to scan backfat of live pigs including the design of electronic circuits and the details of the ultrasonic probe. The major problem in this kind of instrument is the design of an ultrasonic transducer, which have to meet some special features. In collaboration with the Ferroelectric Ceramics Group of the Physics Department-UFSCAR, was possible to develop the piezoelectric ceramic (PZT) to work at 2.1 Mhz to generate the short pulses, which is the basic principle of the equipment. |
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Palavras-Chave: |
EMBRAPA-CNPDIA; Equipamento portatil; Instrumentacao; Live pigs; Toucinho; Ultra-som; Ultrasound. |
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Thesaurus NAL: |
backfat; instrumentation; portable equipment. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02135naa a2200265 a 4500
001 1026975
005 1999-12-22
008 1996 bl --- 0-- u #d
100 1 $aBISCEGLI, C. I.
245 $aDevelopment of a portable unltrasound equipment for backfat evaluation of live pigs.
260 $c1996
300 $aPB 03.
520 $aFor many years the selection of breeding animals has been concentrated around reproduction skills, growth rate, feed efficiency and temperament. These traits still play an important role, but nowadays consumers and slaughterhouses are demanding high quality pork meat and price systems have been designed to pay for lean and not fat. Before the advent of ultrasound, backfat scan in live pigs was restricted to the use of a metallic ruler, which beside time consumption for operation, also require skin perforation of animals, which cause little wound and discomfort to them. The development of a non-invasive portable ultrasound equipment allowed to avoid those inconveniencies by providing fast, safety and precise measurements of fat depth. The present report describes the complete development of a portable ultrasonic instrument to scan backfat of live pigs including the design of electronic circuits and the details of the ultrasonic probe. The major problem in this kind of instrument is the design of an ultrasonic transducer, which have to meet some special features. In collaboration with the Ferroelectric Ceramics Group of the Physics Department-UFSCAR, was possible to develop the piezoelectric ceramic (PZT) to work at 2.1 Mhz to generate the short pulses, which is the basic principle of the equipment.
650 $abackfat
650 $ainstrumentation
650 $aportable equipment
653 $aEMBRAPA-CNPDIA
653 $aEquipamento portatil
653 $aInstrumentacao
653 $aLive pigs
653 $aToucinho
653 $aUltra-som
653 $aUltrasound
700 1 $aEIRAS, J. A.
773 $tIn: INTERNATIONAL CONFERENCE ON PHYSICS AND INDUSTRIAL DEVELOPMENT: BRIDGING THE GAP, 2., July 1996, Belo Horizonte, MG. Abstracts... Belo Horizonte: UFMG, 1996.
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Embrapa Instrumentação (CNPDIA) |
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