Effect of Dietary Supplementation of Red and Larch Pine Needle Powders on Productivity, Egg Quality, Yolk Fatty Acids and Cholesterol and Hatchability of Laying Quails.

This study aimed to determine the efficacy of red pine and larch pine needles powder at different doses on productive performance, egg quality, hatching parameters, total fatty acid and cholesterol levels of laying quails. A total of 126 (84 ♀ and 42 ♂) 20-week-old laying quail were randomly distributed into seven experimental diets with three replicates of six (four female and two male) birds per cage. The groups were fed a basal diet (CON group), a basal diet with red pine needle powder (RPNP group) (1.