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Abstract Title:

Vitamin C and vitamin E supplementation alleviates oxidative stress induced by dexamethasone and improves fertility of breeder roosters.

Abstract Source:

Anim Reprod Sci. 2016 Aug ;171:1-6. Epub 2016 Apr 4. PMID: 27297178

Abstract Author(s):

Yuna Min, Tongtong Sun, Zhuye Niu, Fuzhu Liu

Article Affiliation:

Yuna Min

Abstract:

This study was conducted to determine the effect of supplemental dietary vitamin C (VC) and vitamin E (VE) on improving semen quality and antioxidative status in breeder roosters challenged with dexamethasone (DEX). 120 45-week-old Lveyang black-boned breeder roosters were divided into 5 experimental treatments, including negative group, positive group, and three trial groups, which were fed basal diet supplemented with 300mg/kg VC, 200mg/kg VE, or 300mg/kg VC and 200mg/kg VE (VC+VE). At 49 weeks of age, the positive control and trial groups were subcutaneously injected 3 times every other day with DEX 4 mg/kg body weight, the negative control group was sham injected with saline. At 50 weeks of age, average daily feed intake of birds challenged with DEX significantly increased (P<0.05), however, serum testosterone significantly decreased (P<0.05). Dietary supplementation of VC+VE enhanced serum testosterone and sperm motility remarkably (P<0.05). There were no differences in sperm viability between the DEX-treated groups. During the post-stress recovery period (52 weeks of age), dietary supplementation of VE and VC+VE significantly increased the body weight of birds under oxidative stress (P<0.01). VC, VE, and VC+VE groups had greater sperm viability than control group (P<0.01). Additionally, there was a decrease in the semen plasma malondialdehyde content (P<0.05) of the VC and VC+VE groups, and in the testicular malondialdehyde content (P<0.01) of the VE and VC+VE groups. In summary, VC, VE, especially their combination alleviate the oxidative stress induced by DEX and are favorable for the fertility of breeder roosters.

Study Type : Animal Study

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Sayer Ji
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