数字农科院2.0

Effects Of Low-Dose Organic Trace Minerals On Performance, Mineral Status, And Fecal Mineral Excretion Of Sows

文献类型： 外文期刊

作者： Ma, LX; He, JN; Lu, XT; Qiu, JL; Hou, CC; Liu, B; Lin, G; Yu, DY

作者机构：

关键词： Organic Trace Mineral; Reproductive Performance; Mineral Status; Fecal Mineral Excretion; Sow

期刊名称： ASIAN-AUSTRALASIAN JOURNAL OF ANIMAL SCIENCES

ISSN： 1011-2367

年卷期： 2020 年 33 卷 1 期

页码：

收录情况： JCR（2021版）

摘要： Objective: To investigate the effects of low-dose trace mineral proteinates on reproductive performance, mineral status, milk immunoglobulin contents and fecal mineral excretion of sows. Methods: Eighty crossbred sows (LandracexLarge White) were randomly allocated to two groups in a 135-day trail, from breeding through 21 d postpartum. The two treatments were inorganic trace minerals (ITM): a basal diet+inorganic iron (Fe), copper (Cu), manganese (Mn), and zinc (Zn) at 90, 15, 25 and 90 mg/kg, respectively and organic trace minerals (OTM): a basal diet+proteinates of Fe, Cu, Mn, and Zn at 72, 12, 20, and 72 mg/kg, respectively. Results: Compared with ITM, OTM significantly increased (p<0.05) the number of piglets with birthweight >1 kg, the litter weaning weight, and milk Fe, Cu contents. No significant differences (p>0.05) were observed on sow hair mineral contents or immunoglobulin M (IgM), IgG, and IgA contents in colostrum and milk. In comparsion to ITM, OTM decreased fecal Fe, Cu, Mn, and Zn contents of gestating sows (p<0.01) and Fe, Mn, and Zn in lactating sows (p<0.01). Conclusion: These results indicate that low-dose mineral proteinates can increase the number of piglets with birthweight >1 kg, the litter weaning weight and certain milk mineral concentrations while reducing fecal mineral excretion.

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