Capillarity and fibre types in locomotory muscles of wild mallard ducks (Anas platyrhynchos)

Torrella, Joan Ramón; Fouces, V.; Palomeque, J.; Viscor, Ginés

doi:10.1007/bf00263979

Cited by 25 publications

(23 citation statements)

References 62 publications

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“…Genotype had no significant effect on the fibre type composition in muscles. Concerning muscle typology, we confirmed previous results obtained by Torrella et al [12] in mallard ducks, Gille et al [31] in Pekin ducks, Baéza et al [9] in Muscovy ducks and Baéza et al [32] in mule ducks.…”

Section: Discussionsupporting

confidence: 92%

“…SDH staining made it possible to characterise fibres with high oxidative activity (deep blue granulation, types αr and βr) and low oxidative activity (pale blue stained fibres, type αW). The Sartorius muscle can be divided into a fast portion (superficial) composed of type αr and αw fibres and a mixed portion (deep) composed of type βR, αR and αW fibres [12]. We only studied the mixed portion which represents the third part of a muscle cross-section after ATPase activity determination.…”

Section: Histological Analysismentioning

confidence: 99%

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Effect of genotype and overfeeding on lipid deposition in myofibres and intramuscular adipocytes of breast and thigh muscles of ducks

Chartrin¹,

Schiavone

Bernadet³

et al. 2005

Reprod. Nutr. Dev.

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-We conducted a study to evaluate the effects of genotype (Muscovy, Pekin and their crossbred, hinny and mule) and overfeeding (14 days from 12 weeks of age) on lipid deposition in myofibres and intramuscular adipocytes of breast and thigh muscles of ducks. Birds of the four genotypes were also reared contemporaneously with a growing diet distributed ad libitum. Muscle samples (Pectoralis major and Sartorius) were collected at 14 weeks of age on 8 ducks per treatment. The muscle fibre typing, the total lipid and triglyceride contents in myofibres and the relative surface occupied by adipocytes on the cross-sectional area of the muscles were determined by histological and image analysis. Overfeeding induced a marked increase of body weight but had no significant effect on the muscle weight, the cross-sectional area (CSA) of myofibres and the muscle typology. In muscles, overfeeding induced a large accumulation of lipids, mainly in adipocytes whose relative surface increased 1.5 fold in P. major and 2.1 fold in Sartorius and an increase in triglyceride content of fast twitch oxydo-glycolytic and glycolytic fibres in P. major only (+ 37 and + 16% respectively). Genotype had no significant effect on the muscle typology. By comparison with the other genotypes, Muscovy ducks exhibited the highest body weight, the highest muscle weight which could partly be explained by the highest fibre CSA and the lowest intramuscular fat content in adipocytes and myofibres (only fast twitch oxydo-glycolytic fibres in P. major). We observed the reverse situation for the Pekin ducks. The crossbred ducks always presented intermediate values except for body weight. lipids / myofibres / adipocytes / muscles / ducks

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Section: Discussionsupporting

confidence: 92%

Section: Histological Analysismentioning

confidence: 99%

Effect of genotype and overfeeding on lipid deposition in myofibres and intramuscular adipocytes of breast and thigh muscles of ducks

Chartrin¹,

Schiavone

Bernadet³

et al. 2005

Reprod. Nutr. Dev.

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show abstract

“…In Mallard ducks, the proportion of red fibres is higher (78 % versus 70 %) and the proportion of white fibres, lower (22 % versus 30 %) [20].…”

Section: Growth Of Ducks and Musclesmentioning

confidence: 88%

“…They were chosen on the basis of their histochemical properties [13,14]. In [20]. We only studied the mixed part.…”

mentioning

confidence: 99%

Effect of sex on muscular development of Muscovy ducks

Baéza¹,

Marche²,

Wacrenier³

1999

Reprod. Nutr. Dev.

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-Muscovy ducks display marked sexual dimorphism. The aim of our study was to analyse the consequences of dimorphism on muscular growth and, particularly, on the myofibrillar typology of the Pectoralis major and Sartorius muscles. In the Pectoralis muscle, we only found two fibre types: red fast-twitch oxido-glycolytic fibres (about 90 %) and white fast-twitch glycolytic fibres. In the Sartorius, the innermost part contained both white (30 %)

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“…Interestingly, it seems also that leg muscles were always more diversified in terms of the analysed traits of muscle fibres, compared to the more homogenous fibres of pectoralis superficialis muscles, which may be seen in usually greater standard deviations. According to Torrella et al (1996), in wild ducks this is linked with functions for which particular groups of muscles are responsible. The pectoralis superficialis muscles are mainly linked with aviation and wing motion that are strongly limited in domesticated fowl.…”

Section: Graphicsmentioning

confidence: 99%

Influence of housing system on the growth and histological structure of duck muscles

et al. 2014

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This study was aimed at determining the effect of housing systems on the growth, feed conversion ratio (FCR), meatiness and size of muscle fibres of Pekin (P44) and Muscovy (MR71) ducks. Each genetic group included 360 birds (180 males and 180 females). The ducks were divided into four experimental groups according to their sex and housing system: intensive system (IS) and outdoor system (OS). A significant effect of housing system on the final body weight and FCR value was noted only in P44 birds of both sexes, with OS birds having higher body weights than the IS birds. As a result, the OS MR71 drakes were characterized by a significantly higher slaughter yield, weight and content of breast muscles in the carcass. The OS MR71 ducks showed a lower slaughter yield and a higher content of leg muscles in the carcass compared to IS MR71 ducks. In contrast, the housing system had no significant effect on the meatiness of P44 ducks. A greater diameter of muscle fibres in both sexes of P44 ducks and in both sexes of MR71 ducks was observed in the OS compared to IS flocks. A greater cross section of muscle fibres was also noted in the ducks from the OS system, however with significant differences confirmed only in pectoralis superficialis and biceps femoris in MR71 drakes as well as in the biceps femoris of P44 drakes. These data show differences between duck genotypes and indicate the efficiency and potential of outdoor poultry systems. ______________________________________________________________________________________

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Capillarity and fibre types in locomotory muscles of wild mallard ducks (Anas platyrhynchos)

Cited by 25 publications

References 62 publications

Effect of genotype and overfeeding on lipid deposition in myofibres and intramuscular adipocytes of breast and thigh muscles of ducks

Effect of genotype and overfeeding on lipid deposition in myofibres and intramuscular adipocytes of breast and thigh muscles of ducks

Effect of sex on muscular development of Muscovy ducks

Influence of housing system on the growth and histological structure of duck muscles

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