Effects of dietary manganese supplementation on performance, serum enzymes, glucose and lipids in broilers
Uyanik, F.; Atasever, A.; Eren, M.; Arik, T.
Indian Veterinary Journal 81(5): 537-540
ISSN/ISBN: 0019-6479 Accession: 004132806
The experiment was undertaken to study the effects of dietary supplemental MnSO4 and MnO2 on the performance, serum parameters and organs of broiler chickens. A total of 140 broiler chicks were divided into 7 groups. The control group was fed with basal diets containing 3025 kcal/mg metabolizable energy (ME), 21.28% crude protein (CP) and 92.40 mg/kg Mn (starter diet) and 1110 kcal/mg ME, 21.73% CP and 54.84 mg/kg Mn (grower diet). Chicks in the treatment groups were fed with basal diets supplemented with 100, 250 or 500 mg/kg Mn from either MnSO4 or MnO2 for 42 days. Insignificant differences in live weight gain were observed among the groups. Food consumption was slightly depressed in groups supplemented with Mn. However, feed efficiency was not adversely affected. Both Mn compounds increased the aspartate aminotransferase (AST) and alanine aminotransferase (ALT) activities and high density lipoprotein (HDL) levels, but decreased the blood glucose levels. Slight changes in the liver were observed at higher Mn levels. The results of this study indicated that Mn supplementation exceeding the required amount might affect food consumption, serum AST and ALT activities, glucose and cholesterol levels.