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Primary Endodermal Epithelial Cell Culture from the Yolk Sac Membrane of Japanese Quail Embryos
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Fiber levels in laying quail diets
AdÉlio N Dias1, TÚlio L Reis2, Juan Carlos P Quintero3
1Rehagro, Belo Horizonte, MG, Brazil.
Anais Da Academia Brasileira De Ciencias
|September 3, 2020
Summary
Dietary fiber inclusion in Japanese quail diets improved feed conversion and water consumption. Higher fiber levels also enhanced yolk pigmentation and intestinal morphology without negatively impacting overall performance.
Area of Science:
- Animal Science
- Poultry Nutrition
- Avian Physiology
Background:
- Dietary fiber is crucial for poultry health and performance.
- Optimizing fiber levels can influence nutrient utilization and gut health.
- Japanese quail (Coturnix japonica) are important models for poultry research.
Purpose of the Study:
- To evaluate the impact of varying dietary fiber inclusion levels on Japanese quail.
- To assess effects on productive performance, egg quality, and gut health indicators.
- To determine optimal fiber levels for improved quail production.
Main Methods:
- 480 Japanese quail were used in a completely randomized design with 5 dietary fiber levels (2.78% to 3.98%).
- Evaluated parameters included feed intake, egg production, water consumption, egg quality, and excreta moisture.
- Digestive organ weights, intestinal morphology (villi height), and egg lipid content were analyzed.
Main Results:
- No significant effects on feed intake, egg production, viability, live weight, digestive organ weights, or excreta moisture.
- Improved feed conversion ratios (per mass and per dozen eggs) and increased water consumption were observed with higher fiber levels.
- Yolk color intensity increased with higher fiber, while egg lipid concentration showed a quadratic response. Intestinal villi in the duodenum and cecum were improved.
Conclusions:
- Dietary fiber inclusion up to 3.98% positively influences feed conversion and water intake in Japanese quail.
- Enhanced yolk pigmentation and improved intestinal morphology (duodenal and cecal villi) are key benefits.
- While not affecting overall production metrics, fiber optimization offers specific advantages for quail nutrition.
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