The Effect of Dietary Sinapic Acid (4-Hydroxy-3, 5-Dimethoxy-Cinnamic Acid) on Gastrointestinal Tract Microbial Fermentation, Nutrient Utilization, and Egg Quality in Laying Hens
Year: 2008
Type: article
Abstract: Plant-based simple phenolics are natural antimicrobial and antioxidant compounds that may possess biological activity when included in animal diets. Previous work in our lab has shown that sinapic acid (SA) found in canola meal improves nutrient retention and alters gut microbiota when fed at low levels (0 to 0.10%) to broiler chickens. It was of interest to investigate the effect of dietary SA in laying hens that possess a more mature intestinal microbiota. Therefore, 2 experiments were conducted to determine the effects of dietary SA on performance, nutrient digestibility, and egg quality in laying hens. Sinapic acid (Sigma-Aldrich, 98% purity) was included in diets at 0, 0.025, 0.050, and 0.075% in experiment 1, and 0 and 0.5% in experiment 2. Both experiments were conducted for 21 d. Dietary treatment did not affect production traits and gastrointestinal tract volatile fatty acid production in either experiment. Apparent metabolizable energy and protein digestibility were also unaffected by treatment in experiment 1, but in experiment 2, feeding 0.5% SA increased both AME(n) and protein digestibility in comparison to the unsupplemented control. Egg weight, albumen weight, yolk weight, egg specific gravity, shell thickness, and Haugh units were not significantly affected by dietary treatments in either of the experiments. Sinapic acid was not detected in eggs from experiment 1 but in experiment 2, low levels of SA were detected in both the yolk and albumen of eggs from hens fed 0.5% SA. Further research is needed to more completely define the relationship between dietary SA level and nutrient utilization as well as the accumulation of SA in egg components.
Source: Poultry Science
Authors: M.L. Johnson, J.P. Dahiya, A.A. Olkowski, H.L. Classen
Institution: University of Saskatchewan
Language: English
Subfield: Animal Science and Zoology
Domain: Life Sciences
SDG: Zero hunger
Open Access status: hybrid
Estimated APC paid: $2,600
OpenAlex ID: W2057490482