An organic acid blend can modulate swine intestinal fermentation and reduce microbial proteolysis

Piva, Andrea; Casadei, Gabriele; Biagi, Giacomo

doi:10.4141/a01-090

Cited by 36 publications

(37 citation statements)

References 26 publications

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“…Indeed CV, CVF and CVDF, having the highest phenol and total acid groups' concentrations, seem to yield the highest reduction of ammonia formation. A similar effect has been observed by citric, fumaric and malic acid blend (Piva et al, 2002). However, these carboxylic acids were found not to stimulate fiber digestion, whereas the SBO isolated from compost matter are capable of stimulating fiber digestion and reduce proteolysis at the same time.…”

Section: Overall Remarks On Sbo Effects and Their Chemical Nature-permentioning

confidence: 48%

“…Samples of fermentation fluid were collected from each vessel 0, 4, 8 and 24 h after incubation for ammonia and VA analysis. Chemical analyses of feed and fermentation liquor were performed as previously described (Piva et al, 2002). a Values are means ± standard deviation calculated over five replicates for each treatment; r 2 = correlation coefficient; V F = maximum volume of gas produced (mL); μ = maximum rate of gas production (mL h …”

Section: In Vitro Intestinal Fermentationmentioning

confidence: 99%

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Compost Derived Substances Decrease Feed Protein N Mineralization in Swine Cecal Fermentation

Montoneri¹,

Montoneri²,

Tomasso³

et al. 2013

JAS

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Objectives of this study were to investigate urban biowastes as sustainable source of soluble biobased products (SBO) for use in animal diet and, possibly, to assess product chemical nature-performance relationships. Thus, five different materials sourced from biowastes processed by anaerobic and/or aerobic fermentation were treated to yield five different SBO. The products were first characterized for their chemical nature. Afterwards, they were tested as diet supplements to modulate pig's cecal fermentation of a protein feed. In vitro fermentation of the protein feed was performed using the cecal content collected from slaughtered pigs as incubation liquor. The experimental plan comprised 29 treatments distributed over the 5 SBO used at 5-6 doses each in the 0.1-1.4% concentration range, compared to a SBO free control. During the 24 h in vitro fermentation, gas and liquor samples were analyzed for total gas volume vs. time production, and for ammonia and volatile fatty acids concentration. The results showed the investigated SBO to be significantly different for both their chemical composition and in their effects on the measured fermentation indicators. All materials showed significant effects already at the lowest 0.1% concentration. However the SBO isolated from composted residues decreased ammonia production, whereas the SBO isolated from the digestate of the food residues' anaerobic treatment had the opposite effect. Ammonia production was found to be directly correlated with isobutyric and isovaleric production. The results clearly pointed out reduced proteolysis and N mineralization by 7-17% caused by compost sourced SBO. These findings have relevant implications for the economics and environmental impact of the animal production industry.

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Section: Overall Remarks On Sbo Effects and Their Chemical Nature-permentioning

confidence: 48%

Section: In Vitro Intestinal Fermentationmentioning

confidence: 99%

Compost Derived Substances Decrease Feed Protein N Mineralization in Swine Cecal Fermentation

Montoneri¹,

Montoneri²,

Tomasso³

et al. 2013

JAS

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“…Various feed additives such as organic acids, copper sulphate, zinc oxide, probiotics, prebiotics, and herbs have been studied in newly weaned piglets (Easter 1988;Hill et al 2000;Tsiloyiannis 2001). Partnanen and Morz (1999) and Piva et al (2002) reported that the inclusion of organic acids in the diet can enhance growth performance and modulate intestinal microbiota in pigs. Lactic acid has been reported to reduce gastric pH and delay the multiplication of an enterotoxigenic E. coli (Thomlinson and Lawrence 1981) and to be more effective than other organic acids in improving pig growth performance (Tsiloyiannis et al 2001).…”

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confidence: 99%

Impact of feeding blends of organic acids and herbal extracts on growth performance, gut microbiota and digestive function in newly weaned pigs

Namkung¹,

Gong²,

Yu³

et al. 2004

Can. J. Anim. Sci.

198

128

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. M. 2004. Impact of feeding blends of organic acids and herbal extracts on growth performance, gut microbiota and digestive function in newly weaned pigs. Can. J. Anim. Sci. 84: 697-704. One hundred eighty newly weaned pigs were used to investigate effects of feeding organic acids and herbal extracts on growth performance, gut morphology and microbiota, and immune response in newly weaned pigs during a 4-wk period. There were five dietary treatments: control, Acid 1 (acetic, propionic, phosphoric and citric acid; 1.1% inclusion), Acid 2 (Acid 1 + 1.0% lactic acid), herbal extracts (0.75% inclusion; containing cinnamon, thyme and oregano extract), and antibiotic (110 ppm lincomycin). As compared to the control, pigs on antibiotic and Acid 2 showed higher (P < 0.05) ADG only during week 2 post-weaning, whereas pigs on herbal extract showed lower (P < 0.05) ADG only during week 3 post-weaning. Fecal coliform counts were lower (P < 0.08) in pigs on Acid 1 and 2 on day 4 post-weaning and in pigs on antibiotic and herbal extract on day 14 post-weaning. Fecal lactobacilli counts were lower (P < 0.05) in pigs on antibiotic on day 14 post-weaning. Based on PCR-DGGE, treatment influenced the composition of gut microbiota. The pH of the colon was lower (P < 0.05) in pigs on acid treatments and serum IgG was lower (P < 0.05) in pigs on antibiotic. Dietary treatment did not affect (P > 0.10) intestinal morphology. These results show that the inclusion of antibiotic in the diet reduced the proliferation of both potentially harmful coliform bacteria and potentially beneficial lactobacilli in the pig's gut, while herbal extract and organic acids appeared to reduce the proliferation of coliform bacteria. Blends of organic acids can serve as an alternative to in-feed antibiotics during the first few weeks post-weaning for pigs. . Comparativement aux sujets du traitement témoin, les porcelets recevant l'antibiotique et le mélange d'acides n 2 affichaient un GQM plus élevé (P < 0,05) durant la deuxième semaine suivant le sevrage seulement alors que ceux recevant le mélange d'extraits d'herbes présentaient un GQM plus faible (P < 0,05) la troisième semaine suivant le sevrage uniquement. Le nombre de coliformes fécaux était plus bas (P < 0,08) chez les porcelets recevant les deux mélanges d'acides quatre jours après le sevrage et chez ceux recevant l'antibiotique et le mélange d'extraits d'herbes le 14 e jour suivant le sevrage. La population de lactobacilles fécaux était plus faible (P < 0,05) chez les animaux recevant l'antibiotique le 14 e jour suivant le sevrage. Selon les résultats de la PCR-DGGE, le traitement influe sur la composition de la microflore intestinale. Le pH est plus faible (P < 0,05) dans le côlon des animaux recevant un mélange d'acides et la concentration d'IgG dans le sérum était plus faible (P < 0,05) chez les porcelets recevant l'antibiotique. Le traitement alimentaire n'affecte pas (P < 0,05) la morphologie des intestins. Ces résultats indiquent que l'inclusion d'un antibiotique à la ration ralentit la prol...

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“…The degree of their concentration in the digesta reflects the level of intestinal fermentation (Jensen, 2001;Knarreborg et al, 2001;Piva et al, 2002).…”

Section: Discussionmentioning

confidence: 99%

Postnatal morphological development and production of short-chain fatty acids in the digestive tract of gnotobiotic piglets

Gancarčíková¹,

Buleca²,

Žitňan³

et al. 2009

Vet. Med. - Czech

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ABSTRACT:The present study examined the impact of Enterococcus faecium on morphological development and production of short-chain fatty acids in the digestive tract of gnotobiotic piglets during milk nutrition and weaning. The experiment was carried out on (18) gnotobiotic piglets. The piglets were non-colostral and the feeding ration consisted of autoclaved milk substitute (Sanolac Ferkel, Germany). From the first day of life a probiotic strain of Enterococcus faecium was administered continually at a dose of 2 ml of inoculum (1 ml contained 1 × 10 4 CFU).The animals were weaned on Day 28. Gastrointestinal tract was collected from 18 gnotobiotic piglets slaughtered at three hours after birth and at the age of 2, 7, 14, 21, 28 and 35 days. The level of short-chain fatty acids was determined in the contents of jejunum, ileum and colon. Samples of intestinal mucosa (from duodenum, jejunum and ileum) were subjected to morphological analysis. We characterized regional variations in morphological and functional responses of the small intestine. The jejunal part of the intestinal tract of gnotobiotic piglets was characterized by relatively short crypts, extremely long villi and narrow lamina propria which contained only few cells up to Day 14 of life. Morphological examination showed that jejunal and ileal villi were significantly lower at 21 days of age (P < 0.05 and P < 0.001, resp.). Depending on age, the concentration of both acetoacetic acid and acetic acid was higher in the jejunal contents. The difference was significant on Day 7 of age (P < 0.05) for acetoacetic acid and on Day 28 of age (P < 0.01) for acetic acid. The concentration of acetic acid in the colonal content of gnotobiotic piglets was significantly higher on Day 7 (P < 0.05) and 21 of age (P < 0.01). The study demonstrated that the respective bacterial species affected differently the intestinal morphology and concentration of short-chain fatty acids and suggested that postnatal bacterial colonization patterns may have long-term effects on intestinal health and development.

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An organic acid blend can modulate swine intestinal fermentation and reduce microbial proteolysis

Cited by 36 publications

References 26 publications

Compost Derived Substances Decrease Feed Protein N Mineralization in Swine Cecal Fermentation

Compost Derived Substances Decrease Feed Protein N Mineralization in Swine Cecal Fermentation

Impact of feeding blends of organic acids and herbal extracts on growth performance, gut microbiota and digestive function in newly weaned pigs

Postnatal morphological development and production of short-chain fatty acids in the digestive tract of gnotobiotic piglets

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