49 research outputs found
Effect of Duroc genes proportion on growth performance and on carcass and meat quality characteristics in heavy pigs
By means of the application of covariance models, the linear effects of the proportion of Duroc genes were evaluated with respect to growth (from 6 to 170 kg live weight) and feed/gain ratios, as well as carcass (lean cuts, adipose cuts, linear measures, backfat thickness, loin area and lean percentage) and meat quality (L* a* b* colour, reflectance, electrical conductivity, pH) in 167 heavy pigs (87 castrated males, 80 females) from different crosses of Duroc (D), Large White (LW) and Landrace (L) breeds, from 25 to approximately 300 d of age. The pigs were weighed at 25, 105, 170, 235 d and at the end of the trial (298 ± 6 d of age), and were raised under the same conditions. The proportion of Duroc genes was 0% (LWxL; no. 33), 25% [(LWx(DxL); n. 31 and Lx(DxLW); n. 35)] and 50% [Dx(LWx(LWxL)); n. 68]. The increase in the proportion of Duroc genes negatively affected the live weight at the different ages (P0.10). In fact, during the final phase (from 120 to 170 kg l.w.) the effect of the Duroc breed on daily gain became positive (P=0.08), and the feed/gain ratios were significantly lower (P=0.02). The carcass composition was not significantly influenced by the increase in the proportion of Duroc genes, with the exception of a rise in the weight of neck (P<0.01) and flare fat (P=0.02) and a reduction of ham (P=0.09). Carcass length resulted lower as the proportion of Duroc genes increased (P<0.01); at 24 h from slaughtering, meat colour showed lower values for lightness (P=0.08), redness (P=0.02) and yellowness (P=0.03)
La cobertura periodÃstica de las elecciones andaluzas de 2022 en los informativos de Canal Sur, la televisión pública autonómica
La televisión pública, como medio de difusión de contenidos de interés público, es una herramienta valiosa para promover la toma de decisiones informadas en los procesos electorales democráticos. Su función es más relevante durante las campañas electorales porque proporciona la información necesaria para que la ciudadanÃa ejerza libre y racionalmente su derecho al voto. La televisión pública debe garantizar la igualdad de oportunidades de los grupos que concurren a las elecciones, imponiendo la neutralidad y el pluralismo. Este artÃculo analiza la cobertura periodÃstica que ofreció Canal Sur Televisión durante la campaña andaluza de 2022. El estudio ha sido realizado desde la teorÃa de la Agenda Setting, estudiando asà los contenidos informativos de la televisión andaluza. Para ello, se recurrió a la técnica de análisis de contenido cuantitativo, incluyéndose una muestra de 18 informativos. El muestreo abarcó desde el dÃa anterior a que comenzara la campaña hasta el propio dÃa de las elecciones. Los resultados evidencian la relevancia que brindaron los informativos a las elecciones y el tratamiento exclusivo a los partidos más votados en los anteriores comicios. Entre las conclusiones se destaca cómo quedan silenciadas las formaciones minoritarias, la personalización del candidato y la ausencia de sondeos electorales
Characteristics of horse meat consumption and production in Italy
Annali Fac. Med. Vet. Parm
Relationships between body composition, backfat depth and reproductive efficiency in gilts
Intensive genetic selection allowed to obtained gilts attaining just 30-40% of target mature body lean tissue mass and even further less of target mature body fatty tissue mass at the beginning of reproduction activity (Whittemore, 1996). Fat resources of actual gilts are equivalent to 14- 15 mm backfat thickness (P2) at conception (Caugant et al. 1999) and are low in comparison with old genotypes (fat mass twice than lean mass)..