The Performance and Thiamin Status of Pigs Fed Sulfur Dioxide Treated High-Moisture Barley

Gibson, D. M.; Kennelly, J. J.; Aherne, F. X.

doi:10.4141/cjas87-087

Cited by 11 publications

(2 citation statements)

References 25 publications

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“…Other investigators examined pigs fed barley with high moisture content that had been treated with sulfur dioxide (Gibson et al, 1987). Treatment of the barley (1% sulfur dioxide (wt/wt)) demonstrated an enhanced preservation of the barley with a significant time delay before mold growth became evident.…”

Section: Toxicology Of Sulfur Dioxidementioning

confidence: 98%

A Toxicological Assessment of Sulfur as a Pesticide

Gammon

Moore

OʼMalley

2010

Hayes' Handbook of Pesticide Toxicology

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Section: Toxicology Of Sulfur Dioxidementioning

confidence: 98%

A Toxicological Assessment of Sulfur as a Pesticide

Gammon

Moore

OʼMalley

2010

Hayes' Handbook of Pesticide Toxicology

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“…Despite being classified as "generally recognized as safe" by the U.S. Food and Drug Administration, SMB and other sulfites are known to degrade thiamine (Til et al, 1972) and are therefore excluded from use in foods recognized as significant sources of the vitamin (Nair and Elmore, 2003). Thiamine deficiency requires time to develop in pigs (up to 35 d; Gibson et al, 1987), but is characterized by neurological symptoms and can be fatal if left untreated (Hough et al, 2014). Accordingly, unless supplemental thiamine can be delivered externally (e.g., water or injectable) when feeding SMB-treated feed, opportunities beyond short-term SMB use may be limited.…”

Section: Growth Experimentsmentioning

confidence: 99%

Effects of potential detoxifying agents on growth performance and deoxynivalenol (DON) urinary balance characteristics of nursery pigs fed DON-contaminated wheat

Frobose¹,

Stephenson²,

Tokach³

et al. 2017

Journal of Animal Science

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ABSTRACT:Two experiments were conducted to evaluate potential detoxifying agents on growth of nursery pigs fed deoxynivalenol (DON)-contaminated diets. Naturally DON-contaminated wheat (6 mg/kg) was used to achieve desired DON levels. In a 21-d study, 238 pigs (13.4 ± 1.8 kg BW) were used in a completely randomized design with a 2 × 2 + 1 factorial arrangement. Diets were: 1) Positive control (PC; < 0.5 mg/kg DON), 2) PC + 1.0% Product V (Nutriquest LLC, Mason City, IA), 3) Negative control (NC; 4.0 mg/kg DON), 4) NC + 1.0% Product V, and 5) NC + 1.0% sodium metabisulfite (SMB; Samirian Chemicals, Campbell, CA). There were 6 or 7 replicate pens/treatment and 7 pigs/pen. Analyzed DON was decreased by 92% when pelleted with SMB, but otherwise matched formulated levels. Overall, a DON × Product V interaction was observed for ADG (P < 0.05) with a tendency for an interaction for ADFI (P < 0.10). As anticipated, DON reduced (P < 0.001) ADG and ADFI, but the interaction was driven by even poorer growth when Product V was added to NC diets. Pigs fed NC diets had 10% poorer G:F (P < 0.001) than PC-fed pigs. Reductions in ADG due to DON were most distinct (50%) during the initial period. Adding SMB to NC diets improved (P < 0.01) ADG, ADFI, and G:F, and improved (P < 0.02) ADG and G:F compared to the PC diet. A urinary balance study was conducted using diets 3 to 5 from Exp. 1 to evaluate Product V and SMB on DON urinary metabolism. A 10 d adaptation was followed by a 7 d collection using 24 barrows in a randomized complete block design. Pigs fed NC + SMB diet had greater urinary DON output (P < 0.05) than pigs fed NC + Product V, with NC pigs intermediate. Daily DON excretion was lowest (P < 0.05) in the NC + SMB pigs. However, degradation of DON-sulfonate back to the parent DON molecule was observed as pigs fed NC + SMB excreted more DON than they consumed (164% of daily DON intake), greater (P < 0.001) than pigs fed the NC (59%) or NC + Product V (48%). Overall, Product V did not alleviate DON effects on growth nor did it reduce DON absorption and excretion. However, hydrothermally processing DON-contaminated diets with 1.0% SMB restored ADFI and improved G:F. Even so, the urinary balance experiment revealed that some of the converted DON-sulfonate can degrade back to DON under physiological conditions. While further research is needed to discern the stability of the DON-sulfonate, SMB appears promising to restore performance in pelleted DON-contaminated diets.

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Thiamin

2000

Vitamins in Animal and Human Nutrition

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The Performance and Thiamin Status of Pigs Fed Sulfur Dioxide Treated High-Moisture Barley

Cited by 11 publications

References 25 publications

A Toxicological Assessment of Sulfur as a Pesticide

A Toxicological Assessment of Sulfur as a Pesticide

Effects of potential detoxifying agents on growth performance and deoxynivalenol (DON) urinary balance characteristics of nursery pigs fed DON-contaminated wheat

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