Correlations Between Muscle Fibers Characteristics and Meat Quality Attributes of Biceps Femoris Muscle: a Comparative Study of 2 Distinctive Broiler Breeds
R. bras. Ci. avíc.
; 22(4): eRBCA-2019-1171, out. 2020. tab, ilus, graf
Article
em En
| VETINDEX
| ID: vti-761958
Biblioteca responsável:
BR68.1
Localização: BR68.1
ABSTRACT
The current study was conducted to develop the correlations between muscle fiber characteristics and meat quality attributes in the biceps femoris muscle of Arbor Acres (AA) and Yellow-feathered chicken (YFC). A total of fourty pure breed birds of AA (n=20) and YFC (n=20) were used in the experiment. After slaughtering at their respective market age of slaughtering AA 40 d and YFC 120 d, samples were collected for meat quality attributes and myosin ATPase staining for fiber types analyses. Meat quality attributes and muscle fiber characteristics i-e; diameter, cross-sectional area (CSA) and density of AA were significantly different from the YFC (p 0.05). Type I fibers number percentage was significantly higher in YFC than AA, whereas CSA and fiber diameter were higher in AA (p 0.05). Negative correlations were obtained between lightness (L*) and type I fiber number percentage in AA (p 0.05). In YFC fiber number percentage, CSA and diameter of type IIA were negatively correlated with Warner-Bratzler Shear Force. Taken together, muscle fibers characteristics of AA and YFC differ in both breeds and have influenced the meat quality attributes.(AU)
Palavras-chave
Texto completo:
1
Base de dados:
VETINDEX
Idioma:
En
Revista:
R. bras. Ci. avíc.
/
Rev. bras. ciênc. avic
Ano de publicação:
2020
Tipo de documento:
Article