Influencia del sistema de producci?n en la calidad de la canal de cerdos de raza b?sara

La utilizaci?n de razas locales en sistemas de producci?n alternativos presenta una serie de ventajas, como la gesti?n medioambiental, la biodiversidad y la producci?n agr?cola sostenible orientada hacia un mercado de productos de calidad diferenciada, especialmente en ?reas desfavorecidas. En este trabajo se estudi? la influencia de dos sistemas de producci?n en la calidad de la canal de cerdos de raza B?sara. La alimentaci?n recibida fue igual en ambos casos. En la fase de crecimiento (98 d?as) se alimentaron con pienso compuesto comercial, mientras que durante el acabado se les administr? pienso compuesto y harina de ma?z. Se recogieron datos de peso vivo y canal despu?s de 24h a 4?C y se calcul? el rendimiento de la canal. Se realizaron medidas morfom?tricas lineales de la media canal derecha, tras 24h post-mortem. El espesor de la grasa dorsal se midi? a nivel de la 1? costilla, la ?ltima costilla, en el m?sculo gluteus medius en el ?rea m?s espesa de grasa (extremo craneal) y en la de inferior espesura. Teniendo en cuenta los resultados obtenidos, no se observan diferencias significativas en ninguno de los par?metros analizados. El peso de la canal fr?a (94,23?7,55 kg) y el rendimiento (75,51?1,48%) as? como las medidas morfom?tricas mostraron valores pr?cticamente coincidentes entre ambos tipos de sistemas de producci?n. Tampoco se observaron diferencias en el espesor de la grasa dorsal. Las cuatro medidas indican un grado elevado y homog?neo de grasa dorsal, caracter?stica frecuentemente constatada en razas de cerdos no mejoradas (razas locales) existentes en todo el mundo.FE1B-06B2-126F | Jos? Pedro Pinto de Ara?joN/

Distributionally chaotic families of operators on Fréchet spaces

This is a pre-copy-editing, author-produced PDF of an article accepted for publication in Communications on Pure and Applied Analysis (CPAA) following peer review. The definitive publisher-authenticated version Conejero, J. A., Kostić, M., Miana, P. J., & Murillo-Arcila, M. (2016). Distributionally chaotic families of operators on Fréchet spaces.Communications on Pure and Applied Analysis, 2016, vol. 15, no 5, p. 1915-1939, is available online at: http://dx.doi.org/10.3934/cpaa.2016022The existence of distributional chaos and distributional irregular vectors has been recently considered in the study of linear dynamics of operators and C-0-semigroups. In this paper we extend some previous results on both notions to sequences of operators, C-0-semigroups, C-regularized semigroups, and alpha-timesintegrated semigroups on Frechet spaces. We also add a study of rescaled distributionally chaotic C-0-semigroups. Some examples are provided to illustrate all these results.The first and fourth authors are supported in part by MEC Project MTM2010-14909, MTM2013-47093-P, and Programa de Investigacion y Desarrollo de la UPV, Ref. SP20120700. The second author is partially supported by grant 174024 of Ministry of Science and Technological Development, Republic of Serbia. The third author has been partially supported by Project MTM2013-42105-P, DGI-FEDER, of the MCYTS; Project E-64, D.G. Aragon, and Project UZCUD2014-CIE-09, Universidad de Zaragoza. The fourth author is supported by a grant of the FPU Program of Ministry of education of Spain.Conejero, JA.; Kostic, M.; Miana Sanz, PJ.; Murillo Arcila, M. (2016). Distributionally chaotic families of operators on Fréchet spaces. Communications on Pure and Applied Analysis. 15(5):1915-1939. https://doi.org/10.3934/cpaa.2016022S1915193915

False beliefs about fattening foods can have healthy consequences

We suggested to 228 subjects in two experiments that, as children, they had had negative experiences with a fattening food. An additional 107 subjects received no such suggestion and served as controls. In Experiment 1, a minority of subjects came to believe that they had felt ill after eating strawberry ice cream as children, and these subjects were more likely to indicate not wanting to eat strawberry ice cream now. In contrast, we were unable to obtain these effects when the critical item was a more commonly eaten treat (chocolate chip cookie). In Experiment 2, we replicated and extended the strawberry ice cream results. Two different ways of processing the false suggestion succeeded in planting the false belief and producing avoidance of the food. These findings show that it is possible to convince people that, as children, they experienced a negative event involving a fattening food and that this false belief results in avoidance of that food in adulthood. More broadly, these results indicate that we can, through suggestion, manipulate nutritional selection and possibly even improve health

Growth performance of b?saro pigs in hoop barn and confinement housing systems, crecimiento de cerdos b?saros alojados en un sistema hoop barn y en confinamiento tradicional

The goal of this study was to compare the growth performance of growing/finishing pigs housed in a hoop barn system and in traditional confinement. A total of twenty B?saro breed pigs, with 98.6?5.71 days of age, and 25.4?4.87 kg of BW were used (beginning of experiment). The pigs were equally distributed in two groups: Gr1 ? hoop barn (3.0 m2/pig) with outdoor access (200 m2/pig); and Gr2 - traditional confinement with straw bedding (1.8 m2/pig). Both groups were fed with the same diet. During the next 98 days? period (growing phase) and until pigs reached approximately 80 kg LW, the animals were fed with a concentrate diet. In the finishing phase consisting of a final 70 days period until slaughter, the animals reached between 110-120 kg LW and were fed with concentrate and cornflour. The feed intake per group was registered daily and growth performances were collected every two weeks. During the growing phase no differences (P > 0.05) were observed in the average daily gain (ADG) between Gr1 (0.546?0.10 kg/day) and Gr2 (0.563?0.05 kg/day). However, a higher variability was observed in hoop barn group (CV of 18.1% vs. 8.8% in confinement). Similar results were observed during the finishing phase with ADG of 0.535?0.09 kg for Gr1 and 0.505?0.07 kg for Gr2 (P > 0.05). In both growing and finishing phases, the feed conversion rates (FCR) were 3.11 on the Gr1 versus 3.12 kg/kg on the Gr2, and 3.44 in Gr1 versus 3.53 in Gr2, respectively. Despite the different housing systems, ADG and FCR per period were identical in both systems. To the consumer's point of view, the positive aspects of the hoop barn system, such as the use of uncultivated land, product image and pig welfare, are sustainably attractive and therefore could be further reflected in the market.FE1B-06B2-126F | Jos? Pedro Pinto de Ara?joN/