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Evaluation of meat quality from 3 turkey genotypes reared with or without outdoor access.
Sarica, M; Ocak, N; Turhan, S; Kop, C; Yamak, U S.
Afiliación
  • Sarica M; Department of Animal Science, Ondokuz Mayis University, Samsun, Turkey. msarica@omu.edu.tr
Poult Sci ; 90(6): 1313-23, 2011 Jun.
Article en En | MEDLINE | ID: mdl-21597073
To evaluate color [lightness (L*), redness (a*), and yellowness (b*)], water-holding capacity (WHC), and pH values, and for proximate analysis of breast and thigh meats from slow-growing (Bronze; B), fast-growing (Hybrid; H), and medium-growing (crosses; H × B) turkey genotypes raised with or without outdoor access, 36 turkeys (2 females and 2 males from each replicate) per housing system or 12, 16, and 8 turkeys per B, H, and H × B genotype, slaughtered at 17 and 21 wk of age, respectively, were used. Therefore, data were analyzed as a factorial arrangement (2 × 3 × 2 × 2) of treatments. All birds were provided with the same starter, grower, and finisher feeds. Muscle samples were collected at 12 h postmortem for evaluation of meat quality and proximate analysis. Outdoor access increased the a* value and protein content of the breast muscle (P < 0.05) and the b* value of the thigh muscle (P < 0.01). The B and H genotypes had higher (P < 0.01) L* values for the breast meat than did the H × B genotype, whereas the B genotype had lower a* (P < 0.01) and pH (P < 0.01) values for the breast meat or a higher (P < 0.05) pH value for the thigh muscle compared with the H genotype. The breast meat of the B genotype was more yellow (P < 0.01) than that of the H and H × B genotype. Thigh meat from the H genotype had a higher L* value and a lower a* value than did thigh meat from the other genotypes (P < 0.01). Thigh meat from the H × B genotype was higher in protein and lower in fat than was thigh meat from the B and H genotypes, respectively (P < 0.05). No interaction effect of housing system and genotype was observed on the parameters studied (P > 0.05). These results show that housing system did not affect the main quality parameters (pH, water-holding capacity, and L* values) of either muscle, and that genotype created more differences in terms of these parameters.
Asunto(s)

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Vivienda para Animales / Carne Límite: Animals Idioma: En Revista: Poult Sci Año: 2011 Tipo del documento: Article País de afiliación: Turquía Pais de publicación: Reino Unido

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Vivienda para Animales / Carne Límite: Animals Idioma: En Revista: Poult Sci Año: 2011 Tipo del documento: Article País de afiliación: Turquía Pais de publicación: Reino Unido