Effects of continuous supplementations of ascorbic acid, aspirin, vitamin E, and selenium on performance, immune response, and some biochemical parameters under normal environmental and management conditions in broilers

Male broiler chickens were used to determine the effects of ascorbic acid, aspirin, ascorbic acid + aspirin, vitamin E + selenium, and ascorbic acid aspirin + vitamin E + selenium supplementation on performance, IgG levels, and some biochemical parameters in blood. Three hundred and ninety six 1-d ay-old male. Hubbunt broilers were randomly divided into six groups. Each g roup was placed in different pens and feed and water were provided ad libit um. Performance parameters (body weight, feed intake and feed conversion), IgG levels, vitamins A and E, and some biochemical parameters in blood (Na, K, Cl, total protein and albumin) were measured on days 15, 30, and 45 in all groups. The results revealed at the end of the study showed that aspiri n, vitamin C, vitamin E + selenium administrations exhibited no effects on levels of vitamin A, vitamin E, total protein, albumin, Na, Cl and K in blo od, while aspirin administration decreased IgG level. Vitamin C administrat ion increased IgG level in serum, aspirin + vitamin C administration increa sed albumin and K in serum, aspirin + vitamin C + vitamin E + selenium admi nistration increased vitamin E and Na level in serum. Also, there was no si gnificant difference in performance between the control and the experimenta l groups. It was suggested that vitamin C administration to diets may be us eful for broiler breeds due to the observed increased IgG level.