Data/hora: 09/06/2024 06:28:16

Provedor de dados: 	3	
País: 	Brazil	
Título: 	Morphology and histochemistry of muscle fiber types of skeletal muscle tissue of lambs during growth

Morfologia e histoquímica das fibras musculares do tecido muscular esquelético de cordeiros durante o crescimento	
Autores: 	Macedo, Rosa Maria Gomes de; UEM; Pai-Silva, Maeli Dal; UNESP; Pai, Vitlino Dal; Macedo, Francisco de Assis Fonseca de; UEM; Martins, Elias Nunes; UEM.	
Data: 	2000-05-13	
Ano: 	2000	
Palavras-chave: 	2.00.00.00-6 Ciências Biológicas cordeiros; Fibras musculares; Histoquímica; Morfologia 2.00.00.00-6 Ciências Biológicas.	
Resumo: 	Morphological and histochemical methods were used to study the degree of development of myofibers of semitendinosus muscle of lambs aged from birth to the slaughter period. Based on NADH-TR and m-ATPase, after alkaline and acid preincubations, muscle fibers were classified as SO, FOG and FG types. At birth, slow oxidative (SO) myofibers were clearly distinguished from fast myofibers. FOG and FG myofibers were not clearly visualized. At weaning and slaughter, fast myofibers were clearly subdivided into FOG and FG types. At birth, ultrastructural examination revealed myofibers with different degrees of maturation and a great number of satellite cells. At weaning, the majority of myofibers presented a differentiated aspect. Myofibers with variable degrees of differentiation and satellite cells were still frequent. At slaughter, despite the majority of myofibers revealed a mature and hypertrophic pattern, a great number of immature muscle cells was observed. This observation seems to indicate that the rate of growth is still active	
Idioma: 	Português	
Identificador: 	http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/2950

10.4025/actascibiolsci.v22i0.2950	
Editor: 	Universidade Estadual De Maringá	
Formato: 	application/pdf	
Fonte: 	Acta Scientiarum. Biological Sciences; v. 22 (2000); 581-585

Acta Scientiarum. Biological Sciences; v. 22 (2000); 581-585	
Fonte: 	DECLARATION OF ORIGINALITY AND CESSATION OF COPYRIGHTI Declare that current article is original and has not been submitted for publication, in part or in whole, to any other national or international journal. I also declare that once published in the Acta Scientiarum. Biological Sciences, a publication of the Universidade Estadual de Maringá, it will not be submitted by me or by any co-author to any other scientific communication mean. In my name and in the name of co-authors, I shall cede the copyright of the above mentioned article to the Universidade Estadual de Maringá and I declare that I know that the non-observance of this norm may make me liable for the penalties contemplated in the Law for the Protection of Authors’ Rights (Act 9609 of the 19th February 1998).

DECLARAÇÃO DE ORIGINALIDADE E CESSÃO DE DIREITOS AUTORAIS  Declaro que o presente artigo é original, não tendo sido submetido à publicação em qualquer outro periódico nacional ou internacional, quer seja em parte ou em sua totalidade. Declaro, ainda, que uma vez publicado na revista Acta Scientiarum. Biological Sciences, editada pela Universidade Estadual de Maringá, o mesmo jamais será submetido por mim ou por qualquer um dos demais co-autores a qualquer outro meio de divulgação científica. Através deste instrumento, em meu nome e em nome dos demais co-autores, porventura existentes, cedo os direitos autorais do referido artigo à Universidade Estadual de Maringá e declaro estar ciente de que a não observância deste compromisso submeterá o infrator a sanções e penas previstas na Lei de Proteção de Direitos Autorias (Nº9609, de 19/02/98).