Effects of Dietary Vitamin D Forms on Reproductive Performance of Boars

WEI Dongqin, DONG Hongjun, LYU Gang, WU De, XU Shengyu, FANG Zhengfeng, CHE Lianqiang, FENG Bin, LI Jian, LIN Yan

doi:10.3969/j.issn.1006-267x.2017.12.012

Chinese Journal of Animal Nutrition >

2017 , Vol. 29 >Issue 12: 4323 - 4333

DOI: https://doi.org/10.3969/j.issn.1006-267x.2017.12.012

Molecular Nutrition

Effects of Dietary Vitamin D Forms on Reproductive Performance of Boars

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1. Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu 611130, China;
2. Tongwei Group Co., Ltd., Chengdu 610041, China

Received date: 2017-05-18

Online published: 2017-12-04

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Abstract

This study was conducted to investigate the effects of dietary vitamin D supplementation forms on reproductive performance of boars. Sixteen Yorkshire boars with eighteen months of age were randomly allocated to one of two groups, dietary contents of vitamin D₃ (VD₃) and 25-hydroxycholecalciferol (25-OHD₃) were both 50 μg/kg in different groups, respectively. Each group had 8 replicates with 1 boar per replicate. The trial lasted for 16 weeks. The results showed that compared with VD₃ group:sperm motility, effective sperm number per ejaculation in 25-OHD₃ group were significantly increased in 1 to 16 weeks (P<0.05), while deformity ratio was significantly decreased (P<0.05); plasma calcium ion (Ca²⁺) content, estradiol content and aromatase activity in 25-OHD₃ group were significantly increased at day 112 (P<0.05), and seminal plasma 25-OHD₃ content, Ca²⁺ content, fructose content and acid phosphatase activity in 25-OHD₃ group were significantly increased (P<0.05); the expression levels of aromatase, vitamin D 25-hydroxylase,vitamin D 24-hydroxylase and vitamin D receptor genes in 25-OHD₃ group were significantly increased (P<0.05). In conclusion, compared with the same level of VD₃, supplementation of 25-OHD₃ in diet is conducive to increase plasma vitamin D content, so as to improve sperm morphology and athletic ability, and then improve reproductive performance of boars.

Key words： vitamin D₃; 25-hydroxycholecalciferol; boar; reproductive performance

Cite this article

WEI Dongqin, DONG Hongjun, LYU Gang, WU De, XU Shengyu, FANG Zhengfeng, CHE Lianqiang, FENG Bin, LI Jian, LIN Yan . Effects of Dietary Vitamin D Forms on Reproductive Performance of Boars[J]. Chinese Journal of Animal Nutrition, 2017 , 29(12) : 4323 -4333 . DOI: 10.3969/j.issn.1006-267x.2017.12.012

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