CASE STUDY: Environmental benefits of ractopamine use in United States finisher swine

Woods, Abigail; Armstrong, Todd A.; Anderson, D. B.; Elam, Thomas E.; Sutton, A. L.

doi:10.15232/s1080-7446(15)30524-6

Cited by 10 publications

(5 citation statements)

References 13 publications

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“…Lowering nutrient input through the use of feed additives such as amino acids has been shown to reduce emission of NH 3 (Colina et al, 2001), but its effect on VOC odorant emissions or reduced sulfur odor emissions has not been studied. Using various additives, such as enzymes or probiotics, in swine feed has been shown to affect emissions or excretion (Armstrong et al, 2000; Le et al, 2007; O'Shea et al, 2011; McAlpine et al, 2012; Ziemer et al, 2012) through increased feed efficiency and potentially reduced emissions (Woods et al, 2011; Ziemer et al, 2012), but their effect on odor emission is nonexistent. Oat‐based diets have a lower odor emission compared with barley‐based diets (O'Shea et al, 2010), and higher fiber levels have a tendency to lower manure pH, as does the addition of benzoic acid (Bühler et al, 2006; Murphy et al, 2011), which could potentially change odor profiles.…”

Section: Resultsmentioning

confidence: 99%

Odor and Odorous Compound Emissions from Manure of Swine Fed Standard and Dried Distillers Grains with Soluble Supplemented Diets

2016

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This study was conducted to determine the impact of diets containing dried distillers grains with solubles (DDGS) on emissions of odor and odorous compounds from swine manure storage. Twenty-four pigs were fed either a corn-soybean meal (CSBM) diet or a diet containing 35% DDGS over a 42-d feeding trial. Their waste was collected and transferred to individual manure storage containers. Manure from pigs fed diets containing DDGS had significantly lower odorant emissions expressed in animal units for hydrogen sulfide (HS) and ammonia (NH) ( < 0.05) compared with pigs fed the CSBM diet, but emissions of volatile fatty acids and phenolic compounds were significantly higher ( < 0.05) for manures from animals fed the DDGS diet. There was no significant difference for indole compound emissions due to the dietary treatment applied. Emissions of volatile organic compounds (VOCs) from manure accounted for less than 0.1% of carbon consumed for either diet. There were no significant differences in odor emissions for either diet as quantified with human panels or measured as the sum total of the odor activity value. Manure odors from pigs fed the CSBM diet were dominated by HS, whereas animals fed the diet containing DDGS were dominated by VOCs.

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Section: Resultsmentioning

confidence: 99%

Odor and Odorous Compound Emissions from Manure of Swine Fed Standard and Dried Distillers Grains with Soluble Supplemented Diets

2016

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“…A quadratic trend was observed (p < 0.05) on phosphorus content in feces from those animals fed 10 mg of ractopamine kg -1 diet (Y=2.312-0.277X+0.065X²; R²=0.6563), with reduced excretion of this mineral on the second experimental week (2.12). Woods et al (2011) observed that 18 mg of ractopamine kg -1 diet has not modified the phosphorus excreted in feces, though a reduction on phosphorus excreted in urine was verified, concluding that this beta-adrenergic agonist can change the phosphorus retention in pigs at finishing phase.…”

Section: Resultsmentioning

confidence: 92%

<b>Manure production and mineral excretion in feces of gilts fed ractopamine</b> - doi: 10.4025/actascianimsci.v35i3.18662

Watanabe

Thomaz

Pascoal

et al. 2013

Acta Sci. Anim. Sci.

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ABSTRACT.A study was conducted to evaluate the feces+urine produced per animal (FUPA), dry matter, mineral matter, organic matter, nitrogen, phosphorus, potassium and sulfur in feces of gilts fed diets with increasing levels of ractopamine (0, 5, 10 and 15 mg kg -1 of diet). A total of 468 finishing gilts were allotted into 36 pens. In two days of each week, feces and urine were daily sampled in four pens per treatment, quantifying the feces+urine. To determine the characterization of feces, two samples per week were taken daily, in nine pens per treatment. It was used a split plot design, considering the ractopamine level as the plot and the weeks as the subplots. There was no reduction in nitrogen amount in feces. An interaction was detected between ractopamine concentrations and weeks for FUPA and phosphorus, potassium and sulfur in feces. Ractopamine addition in diets for gilts has reduced the feces+urine production and nitrogen and phosphorus excretion. Higher values estimated for potassium content in feces of animals fed diets with 10 and 15 mg of ractopamine kg -1 were found between the second and third week. Increasing levels of ractopamine from 5 to 15 mg kg -1 promoted higher excretion of sulfur over the weeks of supply.Keywords: additive, environmental impact, finishing, mineral, Sus scrofa.Produção de dejetos e excreção mineral nas fezes de fêmeas suínas alimentadas com ractopamina RESUMO. Objetivou-se avaliar a produção de fezes+urina por animal e teores de matéria seca, matéria mineral, matéria orgânica, nitrogênio, fósforo, potássio e enxofre nas fezes de suínos alimentados com dietas contendo concentrações crescentes (0, 5, 10 e 15 mg kg -1 de dieta) de ractopamina. Foram utilizadas 468 fêmeas suínas, alojadas em 36 baias de piso compacto. A cada semana foram realizadas duas colheitas diárias de fezes e urina, de quatro baias por tratamento e duas colheitas semanais, de nove baias por tratamento, para determinação da composição fecal. Utilizou-se o delineamento em blocos, em esquema de parcelas subdivididas, sendo as parcelas as concentrações de ractopamina e as semanas como subparcelas. Não houve redução na quantidade de nitrogênio excretado. Observou-se interação entre concentração de ractopamina e semana, para a produção de fezes+urina por animal e para os teores de fósforo, potássio e enxofre nas fezes. A ractopamina na dieta reduz a produção de fezes+urina e a excreção de nitrogênio e fósforo nas duas semanas iniciais. Foram encontrados maiores valores estimados para o teor de potássio nas fezes de animais alimentados com dietas contendo 10 e 15 mg de ractopamina kg -1 entre a segunda e terceira semanas. O aumento na concentração de ractopamina de 5 até 15 mg kg -1 promove maior excreção de enxofre em função das semanas.

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“…Although its use has obtained approval as a feed additive for swine in the USA, Canada, Mexico and Brazil, ractopamine is prohibited in the European Union, China and many other countries (Vezzoni de Almeida et al , 2012). Despite the potential contribution of ractopamine to environmental protection by increasing efficiency of husbandry, shortening finishing swine growth period, decreasing feed need and thus reducing the amount of water, fertilizer and pesticide for crop cultivation (Woods et al , 2011), people inevitably are still worried about the safety of ractopamine residue in meat especially in those countries where pork is imported from the USA.…”

Section: Introductionmentioning

confidence: 99%

Consumption of meat containing ractopamine might enhance tumor growth through induction of asparagine synthetase

Fan

2021

European Journal of Cancer Prevention

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There is currently no evidence of the carcinogenic effect of the β-adrenergic agonist ractopamine added in finishing swine and cattle feed for promoting leanness. Nonetheless, it has the capability of stimulating expression of asparagine synthetase (ASNS) through activating transcription factor 5, and many other genes involved in the stress reaction in the skeletal muscle of pigs according to published scientific articles. Because overexpression of ASNS has been detected as a key player in amino acid response and unfolded protein response during the development of not a few malignant diseases, especially those with KRAS mutations, and found to be closely related to tumor proliferation, invasion and metastasis, it seems reasonable to hypothesize that intake of ractopamine residue in meat might bring negative effects to cancer patients.

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CASE STUDY: Environmental benefits of ractopamine use in United States finisher swine

Cited by 10 publications

References 13 publications

Odor and Odorous Compound Emissions from Manure of Swine Fed Standard and Dried Distillers Grains with Soluble Supplemented Diets

Odor and Odorous Compound Emissions from Manure of Swine Fed Standard and Dried Distillers Grains with Soluble Supplemented Diets

<b>Manure production and mineral excretion in feces of gilts fed ractopamine</b> - doi: 10.4025/actascianimsci.v35i3.18662

Consumption of meat containing ractopamine might enhance tumor growth through induction of asparagine synthetase

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