The phytoestrogen daidzein may affect reproductive performance of Zhedong White geese by regulating gene mRNA levels in the HPG axis

作者：Xueping Zhao, Tao Shao, Yuting Wang, Xiao‐Xiao Lu, Jinwen Luo, Weidong Zhou · 发表于：British Poultry Science · 年份：2013 · DOI：10.1080/00071668.2013.767439 · 被引用次数：44 · 研究领域：Phytoestrogen effects and research、Hypothalamic control of reproductive hormones、Estrogen and related hormone effects

1. The effect of daidzein, a naturally occurring phytoestrogen, on the reproductive performance of 120 female Zhedong White geese was determined. The geese were divided into 4 groups which were fed on diets containing 0 (Control), 10 (Da1), 20 (Da2) and 30 (Da3) mg daidzein per kg diet. Egg production and weight, fertility and hatchability rates, concentrations of estradiol (E2), triiodothyronine (T3), progesterone (P4), thyroxine (T4) and growth hormone (GH) in serum, and mRNA levels of gonadotropin releasing hormone (GnRH), β-follicle stimulating hormone (FSHβ), follicle stimulating hormone receptor (FSHR), oestrogen receptor1 (ESR1), oestrogen receptor2 (ESR2), prolactin (PRL), prolactin receptor (PRLR), and glyceraldehyde-3-phosphate dehydrogenase (GAPDH) in the hypothalamus-pituitary-gonadal axis (HPGA) were measured. 2. Daidzein increased egg weight and fertility but had no detectable effect on egg production and hatchability. 3. Daidzein affected serum P4 and GH concentrations and T4 rhythm, up-regulated GnRH mRNA and PRLR mRNA levels in the hypothalamus, down-regulated PRLR mRNA in the hypothalamus, PRL mRNA in the pituitary, and ESR2 mRNA levels in the ovary, respectively. The mRNA rhythms of PRLR in the hypothalamus, PRL, PRLR and FSHβ in the pituitary, FSHR, ESR1 and ESR2 in the ovary were significantly changed in the Da2 group. 4. It is suggested that an appropriate dose of daidzein might improve reproductive performance by affecting serum hormone concentrations a...