Effects of Coenzyme Q10 Supplementation on Growth Performance, some Hematological Parameters, Plasma Enzymes Activities in Broilers with Pulmonary Hypertension Syndrome (PHS)

Document Type : Research/Original Article


Department of Animal Science, Facultyof Agriculture, Payame Noor University, Tehran, Iran


This study investigated the effects of coenzyme Q10 (CoQ10) supplementation on hematological, enzymes activities and biochemical parameters in broilers with pulmonary hypertension syndrome (PHS).Two hundred and forty 1-d-old Ross 308 male broiler chicks were randomly allocated into 3 groups with 4 replicates. From d 14, the diets were supplemented with CoQ10 at levels of 0, 20 and 40 mg/kg, respectively, while exposing them to low ambient temperature (10 to 15 ˚C) to induce PHSuntil d 42.Mortality was inspected to determine cause of death and diagnose of PHS. Hematological, biochemical and pathological tests were used to determine the incidence of PHS: total red blood cell (RBC), hemoglobin (HGB), hematocrit (HCT), plasma protein and glucose, activity of alanine transaminase (ALT), aspartate transaminase (AST) and lactate dehydrogenase (LDH).Blood samples were taken at d 21 and 42. At the end of the experiment (wk 6), 2 chicks from each replicate were randomly selected and slaughtered. The heart was removed; the right ventricle was dissected away from the left ventricle and septum and the ratio of right ventricle weight to total ventricle weight (RV/TV) was calculated.Average BW gain and average feed intake were measured weekly from d 15 and average feed conversion ratio was calculated and reported weekly.The results showed that 40 mg/kg CoQ10 supplementationimprovedfeed conversion ratio(FCR)(P<0.05). Moreover, RBC count and plasma protein and glucose level were significantly decreased by 40 mg/kg CoQ10 compared to the other groups, but no significant changes were observed in HGB and HCT. The LDH activity decreased by CoQ10 supplementation (P<0.05). Measurement of malondialdehyde (MDA) content in plasma, RV / TV and mortality due to PHS decreased by 40 mg/kg CoQ10 supplementation (P<0.05). In conclusion, CoQ10 exerted preventive roles in PHS, possible through delivering antioxidant effect of cardiac myocytes and erythrocytes.


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Volume 5, Issue 1 - Serial Number 1
March 2015
Pages 147-153
  • Receive Date: 12 January 2014
  • Revise Date: 15 April 2014
  • Accept Date: 30 April 2014
  • First Publish Date: 01 March 2015