EFFECTS OF ZINC SUPPLEMENTATION AND BETAINE SUBSTITUTION TO METHIONINE ON HEPATIC BETAINE - HOMOCYSTEINE METHYLTRANSFERASE AND LIPOGENIC GENES EXPRESSION IN LAYING HENS UNDER HEAT STRESS

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NAZARI M.; SALLARI S.; GHORBANI M.R.

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Paper Information

Journal: JOURNAL OF AGRICULTURAL BIOTECHNOLOGY Year:2017 | Volume:9 | Issue:1 Page(s): 0-0

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Title

EFFECTS OF ZINC SUPPLEMENTATION AND BETAINE SUBSTITUTION TO METHIONINE ON HEPATIC BETAINE - HOMOCYSTEINE METHYLTRANSFERASE AND LIPOGENIC GENES EXPRESSION IN LAYING HENS UNDER HEAT STRESS

Author(s)

NAZARI M. | SALLARI S. | GHORBANI M.R. | Issue Writer Certificate

Keywords

HEAT STRESSQ2

ZNQ2

BHMTQ1

METIONINEQ2

LIPOGENIC GENESQ1

Abstract

To investigate the effects of dietary zinc and betaine (Bet) substitution to methionine (Met) on hepatic betaine - homocysteine methyltransferase (BHMT) and lipogenic (malic enzyme and fatty acid synthase) genes expression in laying hens under HEAT STRESS by using real-time qPCR, an experiment was performed with 288 Hy-line W-36 leghorn (at 50 to 62 weeks of age) in complete randomized design (CRD) with a 3×2×2 factorial arrangement of treatments including twelve treatments, 3 replicates and 8 hens in each replicate. There were 6 dietary treatments: three doses of Bet (0, 13 and 26%) substitute to Met combined with three levels of zinc (90 and 100 mg/kg) supplemented to the basal diets that were combined with two environmental conditions (thermoneutral and HEAT STRESS conditions). Results showed that dietary supplemental zinc had no effect on BHMT, malic enzyme and fatty acid synthase (FAS) genes expression. The results confirmed that Bet substitution to methionine due to a 2.11-fold increase (P<0.01) compared to the control in BHMT gene expression whereas; it due to a 2.47 and 1.98- fold decrease (P<0.01) compared to the control in malic enzyme and FAS genes expression.Moreover, BHMT, malic enzyme and FAS genes expression was significantly reduced 1.58, 1.96 and 2.15 fold by HEAT STRESS when compared with control group, respectively (P<0.01).Therefore, betaine can reduce the harmful effects of HEAT STRESS by increasing the expression of BHMT gene and reducing the expression of malic enzyme and FAS genes in laying hens under HEAT STRESS.

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APA: Copy

NAZARI, M., SALLARI, S., & GHORBANI, M.R.. (2017). EFFECTS OF ZINC SUPPLEMENTATION AND BETAINE SUBSTITUTION TO METHIONINE ON HEPATIC BETAINE - HOMOCYSTEINE METHYLTRANSFERASE AND LIPOGENIC GENES EXPRESSION IN LAYING HENS UNDER HEAT STRESS. JOURNAL OF AGRICULTURAL BIOTECHNOLOGY, 9(1), 0-0. SID. https://sid.ir/paper/357587/en

Vancouver: Copy

NAZARI M., SALLARI S., GHORBANI M.R.. EFFECTS OF ZINC SUPPLEMENTATION AND BETAINE SUBSTITUTION TO METHIONINE ON HEPATIC BETAINE - HOMOCYSTEINE METHYLTRANSFERASE AND LIPOGENIC GENES EXPRESSION IN LAYING HENS UNDER HEAT STRESS. JOURNAL OF AGRICULTURAL BIOTECHNOLOGY[Internet]. 2017;9(1):0-0. Available from: https://sid.ir/paper/357587/en

IEEE: Copy

M. NAZARI, S. SALLARI, and M.R. GHORBANI, “EFFECTS OF ZINC SUPPLEMENTATION AND BETAINE SUBSTITUTION TO METHIONINE ON HEPATIC BETAINE - HOMOCYSTEINE METHYLTRANSFERASE AND LIPOGENIC GENES EXPRESSION IN LAYING HENS UNDER HEAT STRESS,” JOURNAL OF AGRICULTURAL BIOTECHNOLOGY, vol. 9, no. 1, pp. 0–0, 2017, [Online]. Available: https://sid.ir/paper/357587/en

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