Publications

Impact of our Research on Sustainable Egg Production

With respect to sustainable egg production, we have impacted the sector in the following ways :

–   understanding the impact of new caging systems on the health and welfare of birds

–   exploring the interaction between diet and egg quality, and the health of birds (eg. immunity and performance)

–   designing eggs that have higher levels of important nutrients for human health like omega-3 fatty acids and folate

…more

In vivo protein quality of pistachios (Pistacia vera L.)

Science Direct
2024-08-01 | Journal of Food Composition and Analysis
DOI: 10.1016/j.jfca.2024.106351

CONTRIBUTORS: Amanda GA Sá, Adam Franczyk, Jason Neufeld, James D House

Pistachios (Pistacia vera L.), similar to other nuts, fall under the protein foods category, according to the current U.S. Dietary Guidelines and Canada’s Food Guide. When substantiating claims for protein content of pistachios, protein quality data must be available to support these claims. In North America, the Protein Digestibility-Corrected Amino Acid Score (PDCAAS) is used for this purpose, however, Canada requires that this value be used to calculate a Protein Efficiency Ratio (PER). PER can be used for estimating protein quality. The current investigation aimed to offer current assessments of PER and PDCAAS, through the utilization of established in vivo rodent bioassays, for pistachio samples (raw, dry-roasted, and oil-roasted). Amino acid scores established lysine as the most limiting amino acid, with values of 0.933, 1.073, and 1.058 for raw, dry-roasted and oil-roasted pistachios, respectively. PDCAAS

In vitro protein digestibility to replace in vivo digestibility for purposes of nutrient content claim substantiation in North America’s context

Frontiers in Nutrition
2024-05-24| Review article
DOI: https://doi.org/10.3389/fnut.2024.1390146

CONTRIBUTORS: James House, Elaine S Krul, Amanda Gomes Almeida Sa, Erin M Goldberg

The adoption of validated in vitro methods to measure protein digestibility (IVPD) for Protein Digestibility Corrected Amino Acid Score (PDCAAS) assessments will pave the way for innovation in the production and marketing of protein-rich foods in Canada and the United States.

Protein quality of cereals: Digestibility determination and processing impacts

Journal of Cereal Science
2024-05 | Journal article
DOI: 10.1016/j.jcs.2024.103892
CONTRIBUTORS: Amanda G.A. Sá and James D. House.

Overall, combining plant protein sources, such as mixing cereals and legumes in the diet, helps address amino acid deficiencies.

Splenic gene expression of cytokines at multiple time points following lipopolysaccharide challenge in layers

Applied Physiology, Nutrition and Metabolism
2024-03-04| Journal article
DOI: 10.2460/ajvr.23.10.0246

CONTRIBUTORS: Mingyan Jing, Shengnan Li, Shusheng Zhao, James D House

The temporal and quantitative profile of these inflammatory mediators generated from this study provides valuable information in identifying the optimal time window and appropriate biomarkers for LPS-induced inflammation, which has significant implications in evaluating the effects of interventions on the immune system of chickens.