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Archivos Latinoamericanos de Produccion Animal
Asociacion Latinoamericana de Produccion Animal
ISSN: 1022-1301
EISSN: 2075-8359
Vol. 12, No. 1, 2004, pp. 1-7
Bioline Code: la04001
Full paper language: Portuguese
Document type: Research Article
Document available free of charge

Archivos Latinoamericanos de Produccion Animal, Vol. 12, No. 1, 2004, pp. 1-7

 en Study of the skeketal muscle fibers in purebred and crossbred Landrace, Large White and Duroc swine.
S. M. Dierckx ,J. Bortolozzi , V. Dal Pai

Abstract

Fibers of the external obturador (1) and long of the neck (2) were analyzed in swine, of four genetic group. Histoenzymological techniques were employed (HE, acid mAtpase, pH 4,6 and NADH-TR). This allowed classification as to metabolism type and muscular contraction type. It was concluied that muscle 1 possesses more than 50% of FG fibers and muscle 2 more than 40% of SO fibers. Both presented a larger percentage of fast contraction fibers. Regarding metabolism, muscle 1 has a glycolitic (anaerobic) while 2 has an oxidative (aerobic) character.

Keywords
NADH-TR, acid mAtpase, HE, fibers So, FOG and FG, swine

 
 pt Caracterização dos tipos de fibras de músculos esqueléticos de suínos Landrace, Large White, Duroc e mestiços.
S. M. Dierckx ,J. Bortolozzi , V. Dal Pai

Resumo

Foram analisadas fibras dos músculos Obturador esterno (1) e Longo de pescoço de suínos, de quatro grupos genéticos. As técnicas histoenzimológicas (HE, mAtpase ácida, pH 4,6 e NADH-TR) permitiram classificá-los quanto ao tipo de metabolismo (anaeróbico e aeróbico) e de contração muscular (lenta e rápida). Os resultados permitiram concluir que o músculos 1 possui mais de 50% de fibras FG e o 2 mais de 40% de fibras SO e que ambos apresentaram maior percentagem de fibras de contração rápida e quanto ao metabolismo o 1 tem caráter glicolítico e o 2 oxidativo.

Palavras-chave
NADH-TR, mAtpase ácida, HE, fibras SO,FOG,FG, suínos.

 
© Copyright 2004 - ALPA. Arch. Latinoam. Prod. Anim.
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