El estrés por calor es uno de los mayores desafíos a los que se enfrentan los productores de vacuno lechero en muchas regiones del mundo. El estrés por calor reduce el consumo de alimento y la cantidad y calidad de leche producida por las vacas, además de tener efectos negativos…
La regulación del comportamiento ingestivo en vacas lecheras se ha asociado a factores que estimulan la saciedad y el apetito. Al respecto, los aditivos sensoriales estimulan el consumo de materia seca debido a cambios en el comportamiento en pastoreo tamaño y frecuencia de comidas; Mereu et al., 2011; Iglesias et…
Background: Previous work showed that weaning stress causes gut barrier dysfunction partly by triggering the release of corticotropin releasing factor (CRF) and thereby inducing the degranulation of intestinal mast cell (MC). This study investigated the hypothesis that attenuating the weaning-induced activation of the CRF-MC axis via administration of a MC…
Early weaning (EW) results in a transient period of impaired integrity of the intestinal mucosa that may be associated with reduced plasma concentration of glucagon-like peptide-(GLP) 2. We have previously shown that intragastric infusion of chenodeoxycholic acid (CDC) increases circulating GLP-2 in early-weaned piglets. The aim of this study was…
Previous work showed that weaning stress causes gut barrier dysfunction partly by triggering the release of corticotropin releasing factor (CRF) and thereby inducing the degranulation of intestinal mast cell (MC). This study investigated the hypothesis that attenuating the weaning-induced activation of the CRF-MC axis via administration of a MC stabilizing…
The aim of the present study was to assess whether the feeding pattern displayed by sheep exposed to a monotonous ration is modified when the same ration is presented in a diversity of flavours and if such diversity influences nutrient intake and digestibility. Twelve commercial crossbred wether lambs were assigned…
The present work aimed to identify the nutritional characteristics that best explain cereal feed preference in pigs. A total of 25 cereals of known preference (at 60% of inclusion in complete feed) from a previous study were evaluated. The cereals were analyzed for DM, OM, crude fiber, ether extract, CP,…
Introducción El uso de pasturas para producir leche resulta en sistemas de producción de bajo costo porque el forraje pastoreado es una fuente de nutrientes barata (Clark y Kanneganti, 1998; Peyraud y Delaby, 2001). Los sistemas de producción de leche pastoriles eficientes están caracterizados por una alta producción de leche…
In 3 experiments, we assessed preference of recently weaned dairy calves for (1) 8 high-energy feed types [barley meal, corn meal, corn gluten feed (CGF), oat meal, rice meal, sorghum meal, wheat meal, and wheat middlings meal]; (2) 6 high-protein feed types [corn gluten meal (CGM), wheat distillers dried grains,…
Gamma tocopherol (gT) exhibits beneficial cardiovascular effects partly due to its anti-inflammatory activity. Important sources of gT are vegetable oils. However, little is known to what extent gT can be transferred into marine animal species such as Atlantic salmon by feeding. Therefore, in this study we have investigated the transfer…