A comparison of two sources of methionine supplemented at different levels on heat shock protein 70 expression and oxidative stress product of Peking ducks subjected to heat stress

Summary The aim of this study was to examine the effects of different sources and levels of methionine (Met) on Heat shock proteins HSP70 expression and protein carbonylation in liver, HSP70 expression and malondialdehyde (MDA) concentration in intestine under heat stress conditions during summer. A...

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Bibliographic Details
Published in:Journal of animal physiology and animal nutrition 2018-02, Vol.102 (1), p.e147-e154
Main Authors: Guo, L., Li, R., Zhang, Y. F., Qin, T. Y., Li, Q. S., Li, X. X., Qi, Z. L.
Format: Article
Language:English
Subjects:
Animal Feed
Animal Nutritional Physiological Phenomena
Animals
Aquatic birds
Birds
Carbonyls
Diet
Diet - veterinary
Dietary Supplements
Ducks
Duodenum
Gene expression
heat shock protein 70
Heat shock proteins
Heat stress
Heat Stress Disorders - drug therapy
Heat Stress Disorders - veterinary
Heat tolerance
HSP70 Heat-Shock Proteins - metabolism
Hsp70 protein
Ileum
Jejunum
Liver
Malondialdehyde
Methionine
Methionine - administration & dosage
Methionine - pharmacology
methionine sources
oxidative damage
Oxidative stress
Oxidative Stress - drug effects
Poultry Diseases - drug therapy
Protein Carbonylation
Proteins
RNA, Messenger - genetics
RNA, Messenger - metabolism
Small intestine
Waterfowl
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Summary:Summary The aim of this study was to examine the effects of different sources and levels of methionine (Met) on Heat shock proteins HSP70 expression and protein carbonylation in liver, HSP70 expression and malondialdehyde (MDA) concentration in intestine under heat stress conditions during summer. A total of 720 (4 days old) Peking ducks were placed 20 per pen into six replicates for each of the six treatments with a 2 × 3 factorial arrangement, such that two sources of Met (DL‐methionine [DLM] and DL‐2‐hydroxy‐4‐methylthiobutyrate [HMTBA] were supplemented at three different levels (0.05%, 0.20%, or 0.35% on as‐fed basis respectively). The experiment was divided into a starter (day 4–16) and a grower (day 17–35) period. Diet supplemented with 0.35% Met significantly up‐regulated the HSP70 mRNA expression in duodenum, jejunum and ileum on day 16 and 35 as well as in liver on day 35 (p 
ISSN:0931-2439
1439-0396
DOI:10.1111/jpn.12722