Effect of yeast cell wall supplementation in laying hen feed on economic viability, egg production, and egg quality
| Autor: | Natália Barros Petroli Utimi, Ricardo Luis do Carmo Barbalho, Augusto Hauber Gameiro, Bruno Rogério Locatelli dos Santos, Natália Thaís Gonçalves Koiyama, Lúcio Francelino Araújo, Melina A Bonato, Cristiane Soares da Silva Araújo |
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| Rok vydání: | 2018 |
| Předmět: |
food.ingredient
Animal health 040301 veterinary sciences 0402 animal and dairy science 04 agricultural and veterinary sciences Biology 040201 dairy & animal science Yeast 0403 veterinary science Cell wall Animal science food Economic viability Yolk Animal Science and Zoology OVO Food quality Beneficial effects Haugh unit |
| Zdroj: | Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual) Universidade de São Paulo (USP) instacron:USP |
| Popis: | Yeast cell walls can strengthen the immune system and promote agglutination of gastrointestinal tract pathogens, thereby improving animal health and productivity. This study evaluated the effect of supplementing the diet of commercial laying hens with 0, 225, 450, or 900 ppm of yeast cell wall supplement on hen productive performance, egg quality, and economic viability. Yeast cell wall supplementation increased the feed intake, egg production, egg mass, albumen height, and Haugh unit score. Shell thickness and yolk color also were affected by the treatments. The economic viability analysis demonstrated that although feeding costs more with supplementation, the production of more eggs is possible, resulting in a greater than proportional increase in the gross margin. Thus, yeast cell wall supplementation had beneficial effects on the productive performance of laying hens, improved the internal and external egg quality, and contributed to greater profitability. |
| Databáze: | OpenAIRE |
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