Effects of Chronic Exposure to Diets Containing Moldy Corn or Moldy Wheat Bran on Growth Performance,Ovarian Follicular Pool,and Oxidative Status of Gilts |
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| Authors: | Yong Zhuo Pu Yang Lun Hua Lei Zhu Xin Zhu Xinfa Han Xiaoxue Pang Shengyu Xu Xuemei Jiang Yan Lin Lianqiang Che Zhengfeng Fang Bin Feng Jianping Wang Jian Li De Wu Jiankui Huang Chao Jin |
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| Affiliation: | 1.Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China; (Y.Z.); (P.Y.); (L.H.); (L.Z.); (X.Z.); (X.H.); (X.P.); (S.X.); (X.J.); (Y.L.); (L.C.); (Z.F.); (B.F.); (J.W.); (J.L.); (D.W.);2.College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, China;3.Guangxi Shangda Technology, Co., Ltd., Guangxi Research Center for Nutrition and Engineering Technology of Breeding Swine, Nanning 530105, China |
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| Abstract: | ![]()
Background: We investigated the effect of replacing normal corn (NC) or normal wheat bran (NW) with moldy corn (MC) or moldy wheat bran (MW) on growth, ovarian follicular reserves, and oxidative status. Methods: Sixty-three Landrace × Yorkshire gilts were assigned to seven diets formulated by using MC to replace 0% (control), 25% (25% MC), 50% (50% MC), 75% (75% MC), and 100% NC (100% MC), MW to replace 100% NW (100% MW), and MC and MW to replace 100% NC and 100% NW (100% MC + MW), from postnatal day 110 to day 19 of the second estrous cycle. Results: Feeding the gilts with MC or MW induced a lower average daily gain at days 29–56 of the experiment. Age at puberty remained unchanged, but MC inclusion resulted in a linear decrease in antral follicles with diameter >3.0 mm, and control gilts had a 12.7 more large antral follicles than gilts in the 100% MC + MW treatment. MC inclusion linearly decreased the numbers of primordial follicles, growing follicles, and corpora lutea, associated with a lower anti-Müllerian hormone level in serum and 17β-estradiol level in follicular fluid. MC inclusion decreased the serum concentrations of insulin-like growth factor 1 and its mRNA levels in the liver, combined with higher malondialdehyde concentration and lower total superoxide dismutase activities in serum and liver. Conclusion: Chronic exposure to MC-containing diets caused the loss of follicles, even if levels of deoxynivalenol, zearalenone, and aflatoxin B1 were below the levels allowed by China and Europe standards. |
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| Keywords: | gilts moldy corn moldy wheat bran follicular development oxidative stress |
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