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Registros recuperados: 7
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Qualitative-feed-restricted heavy swine: meat quality and morpho-histochemical characteristics of muscle fibers BABT
Fraga,Alessandro Luís; Thomaz,Maria Cristina; Kronka,Rodolfo Nascimento; Budiño,Fábio Enrique Lemos; Huaynate,Rizal Alcides Robles; Scandolera,Antônio João; Ruiz,Urbano dos Santos; D'Angelis,Flora Helena de Freitas.
To evaluate the effect of different levels of qualitative feed restriction (0, 5, 10, 15 and 20%) on pork quality and muscle morpho-histochemical characteristics, 60 castrated male swines were used. Ten animals were slaughtered at 89 kg BW. Other 50 pigs were fed experimental diets and slaughtered at 128 kg BW. Qualitative restriction increased pH45, and water holding capacity, and reduced the redness, yellowness and cholesterol concentrations of Longissimus lumborum. Quadratic tendency for oleic acid contents of loin and fiber cross-section area of Multifidus dorsi (P=0.08) were observed, with maximum point at 11-12% of restriction. No effect (P>0.1) on percentage of M. dorsi fibers SO, FG and FOG was found. The meat from 128-kg-BW pig showed...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Color; Fatty acid profile; Muscle fiber; Nutritional value; Tenderness.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000500012
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Changes in types of muscle fibers induced by transcutaneous electrical stimulation of the diaphragm of rats BJMBR
Costa,D.; Cancelliero,K.M.; Campos,G.E.R.; Salvini,T.F.; da Silva,C.A..
The objective of the present study was to assess the effect of transcutaneous electrical diaphragmatic stimulation (TEDS) on different types of diaphragm muscle fibers. Male Wistar rats (8-12 weeks old) were divided into 2 experimental groups (N = 8 in each group): 1) control, 2) animals submitted to TEDS [frequency = 50 Hz; T ON/T OFF (contraction/relaxation time) = 2/2 s; pulse duration = 0.4 ms, intensity = 5 mA with a 1 mA increase every 3 min for 20 min] for 7 days. After completing this treatment period, the I, IIA, IIB, and IID diaphragm muscle fibers were identified using the mATPase technique. Statistical analysis consisted of the normality, homoscedasticity and t-tests (P < 0.05). There was a 19.6% (P < 0.05) reduction in the number of type...
Tipo: Info:eu-repo/semantics/other Palavras-chave: Diaphragm; Transcutaneous electrical stimulation; Muscle fiber.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2008000900011
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Selection for muscle fat content and triploidy affect flesh quality in pan-size rainbow trout, Oncorhynchus mykiss ArchiMer
Lefevre, Florence; Cardinal, Mireille; Bugeon, Jerome; Labbe, Laurent; Medale, Francoise; Quillet, Edwige.
A lean muscle line (L) and a fat muscle line (F) of rainbow trout were established (Quillet et al., 2005) by a two-way selection for muscle lipid content performed on pan-size rainbow trout using a non-destructive measurement of muscle lipid content (Distell Fish Fat Meter®). The aim of the present study was to evaluate the consequences of this selective breeding on flesh quality of pan size (290 g) diploid and triploid trout after three generations of selection. Instrumental evaluations of fillet color and pH measurement were performed at slaughter. Flesh color, pH, dry matter content and mechanical resistance were measured at 48 h and 96 h postmortem on raw and cooked flesh, respectively. A sensorial profile analysis was performed on cooked fillets....
Tipo: Text Palavras-chave: Flesh quality; Lipid content; Muscle fiber; Triploid; Fish; Texture.
Ano: 2015 URL: http://archimer.ifremer.fr/doc/00271/38246/36431.pdf
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Ultrastructural Study of the Denervated Diaphragm in Rats International Journal of Morphology
Torrejais,M. M; Soares,J. C; Matheus,S. M. M; Mello,J. M; Francia-Farje,L. A. D; Jeronimo,L. C; Vicente,E. J. D.
The structural alterations that occur in the muscle fibers of denervated rat diaphragms were studied. Fifteen adult male albino rats (Rattus norvegicus) with a mean weight of 200 g and about 60 days of age were used. Chronically denervated diaphragms were obtained and the animals were sacrificed after 4, 8 and 12 weeks of denervation. The left antimere of the diaphragm was denervated by sectioning of the phrenic nerve and the right antimere served as control. Each antimere was divided into fragments, which were used for analysis transmission electron microscopy. During the initial phase of denervation (4 weeks), ultrastructural muscle modifications appeared in scattered fibers and in foci along these fibers. Muscle fibers with foci of less dense and...
Tipo: Journal article Palavras-chave: Denervation; Diaphragm; Muscle fiber; Ultrastructural; Rat.
Ano: 2013 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022013000300025
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Morphologic Alterations Resulting from Denervation of the Diaphragm in Rats International Journal of Morphology
Torrejais,M. M; Soares,J. C; Matheus,S. M. M; Francia-Farje,L. A. D; Mello,J. M; Vicente,E. J. D.
The morphological alterations that occur in the muscle fibers of denervated rat diaphragms were studied. Fifteen adult male albino rats (Rattus norvegicus) with a mean weight of 200 g and about 60 days of age were used. Chronically denervated diaphragms were obtained and the animals were sacrificed after 4, 8 and 12 weeks of denervation. The left antimere of the diaphragm was denervated by sectioning of the phrenic nerve and the right antimere served as control. Each antimere was divided into two fragments, which were used for histological (H.E.) and histoenzymological (NADH-TR and myofibrillar ATPase). After 4 weeks, denervated muscle fibers showed important light microscopic alterations: atrophy with angular profiles in cross-sections, cytoplasm...
Tipo: Journal article Palavras-chave: Diaphragm; Muscle fiber; Denervation; Rat.
Ano: 2012 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022012000300061
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Effect of Citrus aurantium L. Essential Oil on Muscle Regeneration in Mdx Mice International Journal of Morphology
De Souza,Paula Aiello Tomé; Marques,Maria Júlia; Lima,Clélia Akiko Hiruma; Matheus,Selma Maria Michelin.
Duchenne muscular dystrophy (DMD) is a severe X-linked recessive disorder characterized by the progressive loss of muscular strength. Mdx mutant mice show a marked deficiency in dystrophin, which was related to muscle membrane stability. The aim of this study was to verify the possible protective anti-inflammatory effect of citrus oil on mdx muscle fibers. Thus, adult male and female mdx mice (014/06-CEEA) were divided into control and citrus-treated. After 60 days of treatment, one ml of blood was collected for creatine kinase (CK) test. Diaphragm, sternomastoideus, anterior tibial and gastrocnemius muscles were removed and processed according to histological routine methods. The observed alterations indicate a direct effect of citrus. Recent studies have...
Tipo: Journal article Palavras-chave: Muscle fiber; Duchenne muscular dystrophy; Citrus aurantium L; Mdx mouse; Muscle regeneration; Central nuclei; Creatine kinase.
Ano: 2011 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022011000400048
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Characterization of Breast Meat Collected from Spent Lohmann Brown Layers in Comparison to Commercial Ross Broilers Rev. Bras. Ciênc. Avic.
Limpisophon,K; E-tun,S; Koeipudsa,C; Charoensuk,D; Malila,Y.
ABSTRACT The objective of this study was to compare characteristics and properties of breast meat from spent Lohmann Brown layers (SP, 90 weeks old, n = 24) and those of commercial broilers (BR, 6 weeks old, n = 24). The breasts of both SP and BR were collected from a local processing plant, vacuum-packed in a plastic bag, and stored at -18ºC until further analyses. The SP showed a greater water-holding capacity, tougher and chewier texture (p<0.05). Both raw and cooked SP breasts comprised the greater total collagen but lower soluble collagen than those of BR (p<0.05). Muscle fibers of the SP, observed under scanning electron microscope, were small, with average fiber diameter of 37.85±1.40 μm, densely packed and surrounded by complex networks of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Muscle fiber; Physicochemical properties; Protein fractionation; Technological properties; Thermal properties..
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2019000300315
Registros recuperados: 7
Primeira ... 1 ... Última
 

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