Effects of dietary supplemental lysophospholipids and vitamin C on performance, antioxidant enzymes, lipid peroxidation, thyroid hormones and serum metabolites of broiler chickens reared under thermoneutral and high ambient temperature. Issue 6 (25th September 2018)

• Record Type: Journal Article
• Authors: Zangeneh, Samira; Torki, Mehran; Lotfollahian, Houshang; Abdolmohammadi, Alireza
• Is Part Of: Journal of animal physiology and animal nutrition. Volume 102:Issue 6(2018)
• Page Start: 1521
• Page End: 1532
• Publication Date: 2018-09-25
• Subjects: broilers -- heat stress -- lysophospholipids -- thermoneutral -- vitamin C; Animal nutrition -- Periodicals; Feeds -- Periodicals; 636.085
• DOI: 10.1111/jpn.12935
• Languages: English
• ISSNs: 0931-2439

Abstract

Abstract: The effects of dietary supplemental lysophospholipids (LPLs) and vitamin C (VC) on performance, activity of antioxidant enzymes, and thyroid hormones of broiler chickens reared under thermoneutral and high ambient temperatures were evaluated. A total of 1, 680 broiler chicks (Cobb 500) in finishing rearing period (days 21–38 of age) were allotted to two groups: thermoneutral (TN) and heat stress (HS). In the TN group, 480 chicks were subjected to four treatments with four replicates ( n = 30) and maintained in usual ambient temperature (24 ± 1°C). In HS group, the remaining 1, 200 chicks were subjected to four treatments with 10 replicates ( n = 30) and exposed to high ambient temperature (34 ± 1°C for 8 hr daily). In both groups, four iso‐caloric and iso‐nitrogenous experimental diets based on a 2 × 2 factorial arrangements including supplemental LPLs (0 or 1, 000 mg/kg) and VC (0 or 500 mg/kg) were formulated and used. Supplemental LPLs decreased ( p < 0.05) body weight gain and increased FCR in the TN and HS groups. In the TN group, increased ( p < 0.05) serum glucose was observed in chickens fed with dietary supplemental VC. In the HS group, decreased ( p < 0.05) total protein concentration was detected in birds fed with supplemental LPLs. In both TN and HS groups, decreased ( p < 0.05) uric acid concentration was detected in chicks fed with the VC‐supplemented diets. A significant ( p < 0.05) interaction between LPLs and VC on lactate concentration in the TN group was observed. In the HS group, decreased breast malondialdehyde concentration was detected in birds fed with the VC‐supplemented diet. In the TN group, increased serum total antioxidant status was detected in birds fed with the LPLs‐supplemented diet. In conclusion, LPLs improved oxidative stability and increased the antioxidant capacity of the serum. In addition, vitamin C modified heat stress and reduced lipid peroxidation.