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Archivos de Zootecnia
versión On-line ISSN 1885-4494versión impresa ISSN 0004-0592
Resumen
GUIMARAES, G.G. et al. Performance traits of two cross-breeding of swine strains in deep bedding. Arch. zootec. [online]. 2011, vol.60, n.229, pp.11-18. ISSN 1885-4494. https://dx.doi.org/10.4321/S0004-05922011000100002.
This experiment was conducted to evaluate the swine performance in deep bedding breeding. Were used 480 pigs in an experimental design of randomized blocks, and fatorial arrangement 2 x 2 (crossbreeding x sex), with three replications and forty animals per experimental unit. Were evaluated the pigs performance traits, backfat thickness (ET) between 10th and 11th rib and in the P2 height and loin eye area (AOL) using real-time ultrasond during the experimental period. Sex effect was verified: male presented results better than female for weekly intake (CS) and daily feed intake (CD); however, feed: gain ratio (CA) and feed efficiency (EA) for male were worse than females. There were not differences in average daily gain (GPD), between males and females. Animals from both crossbreeding and sexes showed satisfactory results, perhaps, swine females showed better performance than male and can be used in deep bedding breeding.
Palabras clave : Backfat thickness; Feed; gain ratio; Weight gain.