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Effects of low-dose organic trace minerals on performance, mineral status, and fecal mineral excretion of sows. | LitMetric

Effects of low-dose organic trace minerals on performance, mineral status, and fecal mineral excretion of sows.

Asian-Australas J Anim Sci

College of Animal Science, Zhejiang University, Key Laboratory of Animal Nutrition and Feed in East China of Ministry of Agriculture, Hangzhou, Zhejiang 310058, China.

Published: January 2020

AI Article Synopsis

Article Abstract

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 (Landrace×Large 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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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6946997PMC
http://dx.doi.org/10.5713/ajas.18.0861DOI Listing

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