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Amelioration of heat stress induced disturbances of antioxidant defense system in chicken by brahma rasayana.

Ramnath V, Rekha PS, Sujatha KS - Evid Based Complement Alternat Med (2008)

Bottom Line: There was a significant (P < 0.05) increase in the activities of antioxidant enzymes in blood such as catalase (CAT) and superoxide dismutase (SOD), as well as liver CAT, glutathione peroxidase (GPX) and glutathione reductase (GR) in NHST-BR treated and HST-BR treated (both 5 and 10 days) chickens when compared with untreated controls.A great deal of significant (P < 0.05) variations were seen in serum and liver reduced glutathione (GSH) concentration in NHST-BR treated and HST-BR treated (both 5 and 10 days) chickens.Serum and liver lipid peroxidation levels were found to be significantly (P < 0.05) higher in HST-untreated (both 5 and 10 days) chickens when compared with other groups.

View Article: PubMed Central - PubMed

Affiliation: Department of Physiology and Department of Statistics, College of Veterinary and Animal Sciences, Kerala Agricultural University, Mannuthy, Thrissur 680651, Kerala, India.

ABSTRACT
Since the range of comfort zone or thermo neutral zone of domestic chickens is narrow, they become easily susceptible to heat and cold environmental stress. We evaluated Brahma Rasayana (BR) supplementation on concentrations of certain oxidative stress markers associated with heat stress. A total of 48 egg type male chickens of local strain were divided into six groups (n = 8) for the study. Three groups were fed with BR orally at the rate of 2 g/kg bw daily for 10 days prior to and during the period of experiment. Two of the four groups that were exposed to heat stress (HST i.e. to a temperature of 40 +/- 1 degrees C and relative humidity of 80 +/- 5% in an environmental chamber) for 4 h daily for 5 or 10 days, received BR orally. The other two groups remained as BR treated and untreated non-heat stressed (NHST) controls. There was a significant (P < 0.05) increase in the activities of antioxidant enzymes in blood such as catalase (CAT) and superoxide dismutase (SOD), as well as liver CAT, glutathione peroxidase (GPX) and glutathione reductase (GR) in NHST-BR treated and HST-BR treated (both 5 and 10 days) chickens when compared with untreated controls. A great deal of significant (P < 0.05) variations were seen in serum and liver reduced glutathione (GSH) concentration in NHST-BR treated and HST-BR treated (both 5 and 10 days) chickens. Serum and liver lipid peroxidation levels were found to be significantly (P < 0.05) higher in HST-untreated (both 5 and 10 days) chickens when compared with other groups. Thus BR supplementation during HST brings about enhanced action of enzymatic and non-enzymatic antioxidants, which ified the undesired side effects of free radicals that are generated during HST.

No MeSH data available.


Related in: MedlinePlus

Influence of heat stress on liver LPO level in egg type male chicken (n = 8). Values are each mean ± SE, ANOVA followed Duncan's multiple range test, a–dP < 0.05; means having same superscripts does not differ significantly at 5% level.
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Figure 6: Influence of heat stress on liver LPO level in egg type male chicken (n = 8). Values are each mean ± SE, ANOVA followed Duncan's multiple range test, a–dP < 0.05; means having same superscripts does not differ significantly at 5% level.

Mentions: All HST-untreated birds showed significant increase (P < 0.05) in LPO level in serum and liver when compared with NHST-untreated controls (Figs 5 and 6).Figure 5.


Amelioration of heat stress induced disturbances of antioxidant defense system in chicken by brahma rasayana.

Ramnath V, Rekha PS, Sujatha KS - Evid Based Complement Alternat Med (2008)

Influence of heat stress on liver LPO level in egg type male chicken (n = 8). Values are each mean ± SE, ANOVA followed Duncan's multiple range test, a–dP < 0.05; means having same superscripts does not differ significantly at 5% level.
© Copyright Policy - creative-commons
Related In: Results  -  Collection

License 1 - License 2
Show All Figures
getmorefigures.php?uid=PMC2249737&req=5

Figure 6: Influence of heat stress on liver LPO level in egg type male chicken (n = 8). Values are each mean ± SE, ANOVA followed Duncan's multiple range test, a–dP < 0.05; means having same superscripts does not differ significantly at 5% level.
Mentions: All HST-untreated birds showed significant increase (P < 0.05) in LPO level in serum and liver when compared with NHST-untreated controls (Figs 5 and 6).Figure 5.

Bottom Line: There was a significant (P < 0.05) increase in the activities of antioxidant enzymes in blood such as catalase (CAT) and superoxide dismutase (SOD), as well as liver CAT, glutathione peroxidase (GPX) and glutathione reductase (GR) in NHST-BR treated and HST-BR treated (both 5 and 10 days) chickens when compared with untreated controls.A great deal of significant (P < 0.05) variations were seen in serum and liver reduced glutathione (GSH) concentration in NHST-BR treated and HST-BR treated (both 5 and 10 days) chickens.Serum and liver lipid peroxidation levels were found to be significantly (P < 0.05) higher in HST-untreated (both 5 and 10 days) chickens when compared with other groups.

View Article: PubMed Central - PubMed

Affiliation: Department of Physiology and Department of Statistics, College of Veterinary and Animal Sciences, Kerala Agricultural University, Mannuthy, Thrissur 680651, Kerala, India.

ABSTRACT
Since the range of comfort zone or thermo neutral zone of domestic chickens is narrow, they become easily susceptible to heat and cold environmental stress. We evaluated Brahma Rasayana (BR) supplementation on concentrations of certain oxidative stress markers associated with heat stress. A total of 48 egg type male chickens of local strain were divided into six groups (n = 8) for the study. Three groups were fed with BR orally at the rate of 2 g/kg bw daily for 10 days prior to and during the period of experiment. Two of the four groups that were exposed to heat stress (HST i.e. to a temperature of 40 +/- 1 degrees C and relative humidity of 80 +/- 5% in an environmental chamber) for 4 h daily for 5 or 10 days, received BR orally. The other two groups remained as BR treated and untreated non-heat stressed (NHST) controls. There was a significant (P < 0.05) increase in the activities of antioxidant enzymes in blood such as catalase (CAT) and superoxide dismutase (SOD), as well as liver CAT, glutathione peroxidase (GPX) and glutathione reductase (GR) in NHST-BR treated and HST-BR treated (both 5 and 10 days) chickens when compared with untreated controls. A great deal of significant (P < 0.05) variations were seen in serum and liver reduced glutathione (GSH) concentration in NHST-BR treated and HST-BR treated (both 5 and 10 days) chickens. Serum and liver lipid peroxidation levels were found to be significantly (P < 0.05) higher in HST-untreated (both 5 and 10 days) chickens when compared with other groups. Thus BR supplementation during HST brings about enhanced action of enzymatic and non-enzymatic antioxidants, which ified the undesired side effects of free radicals that are generated during HST.

No MeSH data available.


Related in: MedlinePlus