Central regulation of drinking water in divergently selected high-water-efficient young broiler chickens: A minireview.

Poultry production is confronting real challenges, including a lofty projected high demand for animal proteins to feed the future, and the need to adapt to planetary boundaries (global warming) with limited natural resources (land, energy, water). Among the most challenging stressors to poultry production sustainability are heat stress (HS) and water uncertainty, that need extensive fundamental and applied research to identify effective strategies. In that regard, our group has recently developed a high-water-efficient broiler (meat-type) chicken line using water conversion ratio (WCR) as a phenotypic trait and defined the hypothalamic molecular mechanisms controlling drinking water under heat stress conditions.

One Receptor Show: Evaluation of Feature Extraction Methods for a Single Gas Sensor Based on α-Tocopherol-Substituted Zinc Phthalocyanine.

A consistent part of gas sensor research activities aims to improve sensing performances by synthesizing new sensing materials, improving the selection of elements in arrays, and optimizing the feature extraction and classification algorithms. This paper combines most of these aspects to confer selectivity to a low-selectivity sensor by using feature extraction algorithms applied to the sensor response kinetics. Several algorithms were employed to represent the kinetic behavior of the sensor response during the adsorption and desorption phases.

Water homeostasis gene expression in the kidney of broilers divergently selected for water conversion ratio.

Divergent selection of broilers for water conversion ratio has established and high-(HWE) and low- water efficient (LWE) broiler lines. Two 2 × 2 factorial experiments were conducted to assess the gene expression profile of systems involved in renal water homeostasis. In Exp.

Research note: Increased lipid accumulation within broiler preadipocytes during differentiation in vitro at atmospheric oxygen tension.

In the broiler industry, intensive genetic selection has been placed on muscle growth which has undesirably led to increased fat accretion. Models of chicken preadipocyte differentiation in vitro have conventionally used incubators without the ability to control oxygen (O) tension; thus, the cells are exposed to atmospheric (∼20-21%) O, which is supraphysiological compared to the O tension within adipose tissue. The objective of this study was to investigate embryonic broiler preadipocyte differentiation at different O tensions, including atmospheric (20%), physiological (5%), and hypoxic (1%).

Effect of Heat Stress on the Expression of Circulating Cyto(chemo)kine and Inflammatory Markers in Broiler Chickens Selected for High- or Low-water Efficiency.

Background: Water scarcity is a current, significant global concern that will only increase under the pressure of climate change. Improving water efficiency of poultry is a new and promising area to help temper agriculture's future impact on fresh water availability. Here, we explored the effects of acute heat stress (HS) on circulating stress and inflammatory markers in 2 lines of broilers divergently selected for water efficiency.