ArticleVeterinary medicine and science2025
Functional Feed for Laying Hens: Application of Saffron Extract as Eco-Friendly Supplement With Cholesterol-Lowering Properties.
Article in Veterinary medicine and science, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Biotechnological upgrading of palm kernel meal for poultry nutrition: Challenges and opportunities.Poultry science · 2026Review
- Combined Bifidobacterium bifidum and Bacillus toyonensis supplementation in drinking water improves productive efficiency, physiological status, and meat quality in broiler chickens.Poultry science · 2026Article
- Manganese Gluconate as a Safe Trace Element Supplement Enhances Immune Function and Resistance to Staphylococcus aureus Infection in Broilers.Biological trace element research · 2026Article
- Article
- Gut health and physiological aspects of broiler chicken fed zeolite as a dietary supplement: its effect on growth, cecal microbiota and digesta viscosity, digestive enzymes, carcass traits, blood constituents and antioxidant parameters.BMC veterinary research · 2025Article
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Authors and funding
3 authors.
Funding
Abstract
backgroundSaffron has been utilized in numerous studies as an additive to augment egg quality and to enhance the oxidative stability of egg yolk.However, there is limited knowledge on the responses of hens to dietary supplementation with saffron petals on egg chemical composition, fecal mineral excretion, and ammonia emission.
objectivesThe objective of this study was to investigate the influence of saffron petal extract-enriched diet on egg quality, blood metabolites and odorous gas emission from excreta in laying hens.
methodsThe experimental methodology involved a feeding trial conducted over a period of 12 weeks, using 200 Hy-line W36 laying hens aged 39 weeks. The dietary intervention included a basic diet (serving as a control with no supplementation), as well as diets fortified with 40, 60 or 80 parts per million (ppm) of hydroalcoholic saffron petal extract in a completely randomized design.
resultsResults showed that the inclusion of saffron petal extract in the diet did not significantly affect the egg crude protein, fat and ash content. However, a significant reduction (p < 0.05) in yolk cholesterol concentration was observed. No substantial effect was noted on feed intake, feed conversion ratio (FCR) and egg weight (p > 0.05). On the other hand, a significant increase (p < 0.05) was documented in the egg production percentage of hens fed on the 80 ppm saffron petal extract diet compared to the control. Furthermore, saffron petal extract supplementation resulted in a significantly lower yolk cholesterol together with reduced serum cholesterol content (p < 0.05). Blood glucose and triglyceride concentrations also demonstrated a decrease subsequent to the inclusion of 80 ppm saffron petal extract. The excretion of faecal minerals did not show any significant alterations due to the dietary interventions (p > 0.05). Notably, hens supplemented with 60 and 80 ppm saffron petal extract displayed significantly diminished concentrations of faecal ammonia (NH
conclusionThe study suggests that the inclusion of 80 ppm saffron petal extract in the diet of laying hens may serve as a functional food source to mitigate cholesterol levels in egg yolk and blood serum, as well as to reduce faecal ammonia emissions.
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