Relationship between the Porcine Stress Syndrome gene and pork quality traits of F2 pigs resulting from divergent crosses
Genet. mol. biol
; Genet. mol. biol;28(1): 88-91, Jan.-Mar. 2005. tab
Article
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| LILACS
| ID: lil-399621
Biblioteca responsable:
BR26.1
ABSTRACT
The PSS genotypes of 596 F2 pigs produced by initial mating of Brazilian commercial sows and native boars were characterized by PCR-RFLP and the pork quality traits were evaluated. Among the 596 pigs studied, 493 (82.7 percent) were NN and 103 (17.3 percent) were Nn. There were no differences between NN and Nn pigs in the following pork qualities pHu (5.71 ± 0.16 vs 5.70 ± 0.11), intramuscular fat (1.55 ± 0.64 percent vs 1.65 ± 0.67 percent), shear force (5552 ± 878 g/1.2 cm vs 5507 ± 826 g/1.2 cm), lightness (44.96 ± 2.05 vs 45.01 ± 1.92), redness (0.64 ± 0.60 vs 0.79 ± 0.55), yellowness (6.62 ± 0.56 vs 6.65 ± 0.48), hue (84.28 ± 5.53 vs 83.41 ± 4.85), or chroma (6.68 ± 0.52 vs 6.73 ± 0.52). However, pork from Nn pigs had a significantly (p < 0.05) lower pH45 (6.41 ± 0.27 vs 6.51 ± 0.26) and greater drip (3.92 ± 1.90 percent vs 3.06 ± 1.60 percent), cooking (33.29 ± 2.26 percent vs 32.50 ± 2.54 percent) and total (35.67 ± 2.48 percent vs 34.01 ± 2.58 percent) loss compared to that of NN pigs. These results indicate that, even in divergent crosses, PSS gene carriers produce pork of poorer quality.
Texto completo:
1
Bases de datos:
LILACS
Asunto principal:
Porcinos
/
Calidad de los Alimentos
/
Reacción en Cadena de la Polimerasa
Límite:
Animals
Idioma:
En
Revista:
Genet. mol. biol
Asunto de la revista:
GENETICA
Año:
2005
Tipo del documento:
Article
País de afiliación:
Brasil