Effect of formic acid on performance, digestibility, intestinal histomorphology and plasma metabolite levels of broiler chickens

Hernández, Fuensanta; García, V.; Orengo, J.; Catala, Pascale; Megías, M. D.

doi:10.1080/00071660500475574

Cited by 169 publications

(127 citation statements)

References 19 publications

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“…In a study by Timmerman et al (2006), it was reported that the positive effects of probiotics on highperformance broilers were lower than in low-performing birds. Houshmand et al (2012), in agreement with the results of Hernandez et al (2006), did not find positive effects of organic acid (formic acid) on performance. In this study, body weight gain was significantly affected by organic acid in the starter phase.…”

Section: Resultssupporting

confidence: 81%

“…Xu et al (2003) reported that decreased crypts depth may lead to poor nutrient absorption, increased secretion in the gastrointestinal tract and lower performance. Similar results were observed by Hernandez et al (2006) with formic acid, which increased the crypt depth of the small intestine. Garcia et al (2007) observed improved villus height and significant increase in crypt depth, but villus surface area was not influenced.…”

Section: Resultssupporting

confidence: 76%

“…Antibiotics have been used for several decades to combat certain pathogenic diseases in farm animals and improve their growth. The inherent dangers in this include increased resistance by pathogens to antibiotics, and residual amounts of antibiotics in animal products, which have been reported by several authors (Truscott & Al-Sheikhly, 1977;Miles et al, 1984;Waldroup et al, 1985;Hernandez et al, 2006;Pirgozliev et al, 2008). Although the inclusion of antibiotics in feed has been banned in the EU countries, such legislation has yet to take place in many other countries, including Nigeria, where antibiotics are still used in animal feeding.…”

Section: Introductionmentioning

confidence: 97%

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Effects of organic acid and probiotic on performance and gut morphology in broiler chickens

Agboola¹,

Omidiwura²,

Odu³

et al. 2016

SA J. An. Sci.

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The effects of organic acid, probiotic and a combination of the two on performance and gut morphology in broiler chickens were investigated. Two hundred and forty one-day-old Arbor Acre broiler chicks were randomly assigned to five dietary treatments with six replicates, each with eight birds. The treatments were basal diet (negative control, NC), basal diet + antibiotic (positive control (PC)), NC + 0.4% organic acid (OA), NC + 0.3% probiotic (PB) and NC + 0.4% OA and 0.3% PB. Reduced body weight gain (BWG) was recorded for birds on the NC diet at the starter phase and over the total period. The addition of OA significantly increased BWG compared to values obtained in birds on the NC and other diets. Diet had no effect on BWG at the grower phase or on feed intake, dry matter intake and feed conversion ratio in any growth phase. Gain : feed ratio was lowered in the NC diet, but improved significantly by OA and PB in the starter phase. Organic acid supplementation reduced the weight of the bursa of Fabricius. The weight of pancreas, height of villi and crypt depth were reduced in birds on the NC diet compared with those on OA, PB and a combination of these. Diet had no effects on the weights of the lungs, heart, spleen, kidneys, liver, villus width, villus height : crypt depth ratio, lactic acid bacteria, coliform bacteria and total bacterial count in any gut section. In conclusion, supplementation of broiler diets with OA and PB could improve their growth and gut morphology better than antibiotics would, with a greater positive effect in the starter phase. ______________________________________________________________________________________

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Section: Resultssupporting

confidence: 81%

Section: Resultssupporting

confidence: 76%

Section: Introductionmentioning

confidence: 97%

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Effects of organic acid and probiotic on performance and gut morphology in broiler chickens

Agboola¹,

Omidiwura²,

Odu³

et al. 2016

SA J. An. Sci.

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“…This is probably because of the strong buffering action of the poultry gastrointestinal tract. This result supports the previous findings reported by Izat et al 1990 andHernandez et al 2006, indicative of an antimicrobial action of the OAB in the upper alimentary tract. Therefore, the antimicrobial action of OAB in the gizzard might have reduced the number of the Enterobacteriaceae and increased the numbers of Lactobacillus in the small intestine as a compensatory mechanism.…”

Section: Intestinal Microbial Populationsupporting

confidence: 83%

Influence of dietary organic acid blend supplementation and interaction with delayed feed access after hatch on broiler growth performance and intestinal health

Cengiz¹,

Köksal²,

Tatlı³

et al. 2012

Vet. Med. - Czech

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ABSTRACT:A trial was conducted to investigate the effects of a dietary organic acid blend for a period of 35 days on the growth performance, intestinal histomorphology and microflora of male broiler chicks with delayed access to feed. One hundred and ninety two one day old broiler chicks (ROSS 308) were randomly distributed into 4 groups housed in four replicate pens with 12 birds in each. A 2 × 2 factorial design was implemented. Four experimental groups were formed by two levels of dietary organic acid blend supplementation (Control and Fysal Dry ® ) and two periods of delayed feed access (0 and 36 h). At 36 h after hatching body weight and body weight change of chicks were significantly (P < 0.001) lower than groups fed immediately after hatching. Delayed feed access had an adverse impact (P < 0.001) on the body weight and feed consumption of broiler chickens on days 14 and 28. Between the days 28 and 35 of the feeding period, these differences disappeared. The relative weight of gizzard (P < 0.05), pancreas (P < 0.01) on day 6 and intestine (P < 0.05) on day 10, and gizzard (P < 0.01) on day 10 were reduced in birds subjected to delayed feed access. Dietary organic acid blend inclusion increased villus length (P < 0.001), whereas delayed feed access decreased villus length (P < 0.05) and increased the incidence of epithelial degeneration and basal membrane separation of the propria mucosa of villus in the jejenum. A significant decrease in Enterobacteriaceae count (P < 0.01) was noted in organic acid blend supplemented groups on day 25. Pectoral muscle malondialdehyde levels were decreased (P < 0.01) with dietary organic acid blend supplementation at day 10. Delayed feed access significantly increased (P < 0.05) the heterophil:lymphocyte ratio at day 6. Overall, dietary organic acid blend supplementation helped broiler chicks to develop a healthier intestinal microflora and this may, in turn, inhibit the delayed feed access-induced increase in malondialdehyde in the early growing period. However, the inclusion of organic acid blend to broiler diets may not be a protective management practice in preventing delayed feed access-related growth depression of broiler chickens.

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“…Additionally, undissociated organic acids can penetrate the lipid membrane of the bacterial cell and decrease intracellular pH, which leads to death (Ricke, 2003), in addition to stimulating pancreatic secretion and providing better intestinal villus integrity (Dibner & Buttin, 2002). However, there are conflicting results regarding the use of acidifiers in poultry and, according to Hernández et al (2006), these effects depend on the chemical form of the acid, pKa values, bacterial species to be destroyed, animal species and the site of action of acids.…”

Section: Introductionmentioning

confidence: 99%

Phytogenic additives and organic acids in broiler chicken diets

et al. 2012

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-The experiment evaluated the influence of isolated or associated phytogenic additives (PA) and organic acids (OA) on nutrient digestibility, performance and carcass characteristics of broiler chickens. Two experiments were conducted in a completely randomized design with a 2 × 2 + 1 factorial arrangement of treatments (with or without PA × with or without OA + antibiotic performance enhancer and anticoccidial). In the first experiment, two metabolic tests were conducted to determine the metabolizability coefficients of the nutrients of starter and growth diets. In the second experiment, 2520 one-day-old chicks were housed in 40 experimental units to evaluate the performance and carcass characteristics. The phytogenic additives and organic acids, isolated or associated, improve the nutrient digestibility of the diet and replace the growth-promoting antibiotics. The use of organic acids isolated or associated with phytogenic additives in broiler diets improves broiler performance in comparison with free antibiotic performance enhancer at 42 days of age. Isolated or associated phytogenic additives and organic acids provided better carcass characteristics.

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Effect of formic acid on performance, digestibility, intestinal histomorphology and plasma metabolite levels of broiler chickens

Cited by 169 publications

References 19 publications

Effects of organic acid and probiotic on performance and gut morphology in broiler chickens

Effects of organic acid and probiotic on performance and gut morphology in broiler chickens

Influence of dietary organic acid blend supplementation and interaction with delayed feed access after hatch on broiler growth performance and intestinal health

Phytogenic additives and organic acids in broiler chicken diets

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