Abstract of research

EFFECT OF SUPPLEMENTATION OF BROILER DIETS WITH GUAVA LEAVES AND/OR OLIVE OIL ON GROWTH, MEAT COMPOSITION, BLOOD METABOLITES AND IMMUNE RESPONSE

Mahmoud, R. El-Sayed; Ibrahim, Doaa; Badawi, M. El-Sayed

Abstract

This trail was conducted to study the effect of dietary supplementation of guava leaves (Psidium guajava) and/or olive oil on performance, meat composition, some blood metabolites, and immune response in broiler chicks. 240 (one-day) commercial broiler chicks (Cobb) were divided into four groups. Chicks were fed four experimental diets for 42 days; as a control diet without supplementation (group 1), control diets supplemented with 1% dried guava leaves (group 2), 1% olive oil (group 3) and mixture of 0.5% olive oil + 0.5% dried guava leaves (group 4). The results revealed that dietary supplementation of dried guava leaves and/or olive oil had a significant improved effect on BW, weight gain and FCR. Dietary supplementation of dried guava leaves and/or olive oil significantly increased DM and decrease ether extract of both breast and thigh meat. On other hand, supplementation of dried guava leaves and/or olive oil significantly (P > 0.05) decreased the level of lipids metabolites except for LDL-C. In addition, feeding of dried guava leaves and/or olive oil reflect higher bird immunity guardad by higher concentrations of total protein, globulin and higher values of total leukocytic count when compared to the control. Moreover, activity of antioxidant and liver enzymes were significantly improved by addition of guava leaves and/or olive oil. It could be concluded that supplementation of broiler diets with dried guava leaves and/or olive oil significantly improved performance and health status of the birds.