IMBIV   05474
INSTITUTO MULTIDISCIPLINARIO DE BIOLOGIA VEGETAL
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Effects of dietary supplementation with thymol on the lipid composition during embryonic development in quail (Coturnix japonica) eggs
Autor/es:
MARÍA EMILIA FERNÁNDEZ; RAUL H MARIN; MARIA P ZUNINO; MARIA C LABAQUE
Lugar:
Kentucky
Reunión:
Congreso; Annual meeting Poultry Science Association; 2015
Institución organizadora:
Poultry Science Association
Resumen:
Diet composition affects the quality and quantity of nutrients, particularly fatty acids (FA) and antioxidants that females allocate for egg formation. Polyunsaturated FA (PUFA), some of which are deficient in diets of captive animals, are crucial components of yolk and particularly prone to oxidative damage, that generates the loss of nutrients for embryonic development and influences the quality of eggs for human consumption through the formation of reactive species. Thymol (THY) is a natural antioxidant that could help maintain the degree of unsaturation of yolk FA. The present study evaluated the effect of THY feed supplementation on the FA profile (total FA (T), and FA of phospholipid (PL) and triglyceride (TG) fractions) in quail egg yolk during embryonic development. Adult female quail (n=24) were randomized to 1 of 2 treatments: control or 6.25g of THY per kg of supplemented feed. Eggs were collected daily and incubated to obtain samples at three stages of embryonic development: 0, 4 and 16 days of incubation (no development, early- and final- development, respectively). Methyl esters of T, PL and TG of the yolk were analyzed by GC-MS. ANOVAs and Fisher tests were used to detect differences at P