The effects of probiotic and phytase on growth performance, biochemical parameters and antioxidant capacity in broiler chickens.

Background: Probiotics and phytase are commonly used as dietary supplements in poultry diets. Phytase is involved in the release of phosphorus in plant grain ingredient of poultry feed, while probiotics provide beneficial organisms to the gastrointestinal tract.

Objective: The present study was performed to evaluate the effect of both commercial probiotic and phytase on chicken performance and biochemical indices.

Thymol and carvacrol supplementation in poultry health and performance.

Background: Thymol and carvacrol as natural essential oils and phenol compounds are components derived from some medicinal plants, such as thyme and oregano species.

Objectives: The increasing demands in organic and healthy meat and egg consumption in human society have made it necessary to consider alternative natural compounds for the replacement of chemical compounds in poultry production. The chemical compounds can remain in meat and eggs and cause complications in human health.