Assessment of a phytogenic feed additive effect on broiler growth performance, nutrient digestibility and caecal microflora composition

Mountzouris, Konstantinos C.; Paraskevas, V.; Tsirtsikos, P.; Palamidi, Irida; Steiner, T.; Schatzmayr, Gerd; Fegeros, K.

doi:10.1016/j.anifeedsci.2011.03.020

Cited by 131 publications

(124 citation statements)

References 34 publications

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“…The current results with Mexican oregano oil were similar to those of Jamroz et al (2005), Hong et al (2012), and Silva Vázquez et al (2015). Mountzouris et al (2011) indicated that incorporating 125 and 250 mg kg -1 of a commercial phytogenic feed additive strengthened broiler production and improved efficiency and FI at the final stage. These results could be due to the properties of essential oils to enhance stimulation of digestive secretion, circulation, antioxidant and antimicrobial properties, and the immune status (Brenes and Roura, 2010;Sugiharto, 2014).…”

Section: Resultssupporting

confidence: 64%

Performance, blood parameters, and carcass yield of broiler chickens supplemented with Mexican oregano oil

et al. 2017

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-The objective of the current study was to evaluate performance, blood parameters, and carcass yield of broilers supplemented with Mexican oregano oil. A total of 162 one-day-old broilers were randomly distributed into three dietary treatments: control diet (without oregano oil or antibiotic); control diet + 0.25 g kg -1 of oxytetracycline; and control diet + 0.4 g kg -1 of Mexican oregano oil. Treatment with organ oil had positive effects on body weight at 35 and 42 days. Feed intake was significantly different at 21 and at 1-42 days; control treatment presented the highest feed intake at 28 and 35 days, while treatment with oxytetracycline had the lowest feed intake from 21 to 42 days. Weekly body weight gain was different at 42 days, in which treatment with oregano oil was the highest and control the lowest. Feed efficiency rate was significantly different at 42 and at 1-42 days; treatment with oxytetracycline and treatment with oregano oil had the best values over control treatment. Blood parameters were found different among treatments, in which treatment with oregano oil was the highest in cholesterol and high-density lipoprotein at 42 days. Carcass and blood biometric variables were not different among treatments. The amount of 0.4 g kg -1 of Mexican oregano oil in diets improves high-density lipoprotein, body weight, and feed efficiency rate of broiler chickens.

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Section: Resultssupporting

confidence: 64%

Performance, blood parameters, and carcass yield of broiler chickens supplemented with Mexican oregano oil

et al. 2017

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“…This study forms a part of ongoing research work (Mountzouris et al, 2011), and in order to avoid excessive repetition a brief description on the experimental treatments is given below. A total of 525 1-day-old male Cobb broilers were obtained from a local commercial hatchery and were randomly allocated into five experimental treatments according to the type of supplementation in a maize-soybean basal diet (BD) formulated for broiler starter (1 to 14 days), grower (15 to 28 days) and finisher (29 to 42 days) growth periods.…”

Section: Birds and Experimental Treatmentsmentioning

confidence: 99%

“…The PFA had carvacrol from oregano, anethol from anise and limonene from citrus as the main active ingredients reaching a total concentration of 115 g/kg PFA, whereas fructo-oligosaccharides acted as carriers (Biomin P.E.P., Biomin GmbH, Herzogenburg, Austria). Details on PFA in diets and PFA addition in feed can be found in Mountzouris et al (2011).…”

Section: Birds and Experimental Treatmentsmentioning

confidence: 99%

“…In this sense, the use of phytogenic compounds (e.g. essential oils, oleoresins and flavonoids) in poultry has gained momentum for their potential role as natural alternatives to AGP because of their beneficial effects in broiler performance and gut health (Giannenas et al, 2003;Brenes and Roura, 2010;Mountzouris et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

“…It has been previously shown that dietary administration of a phytogenic feed additive (PFA) affected broiler growth performance, nutrient utilization and cecal microflora composition (Mountzouris et al, 2011). The aim of this work was to further examine the effect of PFA dietary inclusion level on important elements of broiler gut ecology.…”

Section: Introductionmentioning

confidence: 99%

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Modulation of intestinal mucin composition and mucosal morphology by dietary phytogenic inclusion level in broilers

Tsirtsikos

Fegeros

Kominakis

et al. 2012

Animal

Self Cite

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The effect of a dietary phytogenic feed additive (PFA) inclusion level in mucin monosaccharide composition, mucosal morphometry and mucus histochemistry along the broiler intestinal tract was studied. Cobb male broilers (n 5 525) were allocated into five experimental treatments that, depending on the type of addition in the basal diet (BD), were labeled as follows: C (BD based on maize-soybean meal with no other additions), E1 (80 mg PFA/kg BD), E2 (125 mg PFA/kg BD), E3 (250 mg PFA/kg of BD) and A (2.5 mg avilamycin/kg BD). Samples from duodenum, ileum and cecum of 14-and 42-day-old broilers were collected and analyzed. In 14-day-old broilers, treatments E2 and E3 had higher (P , 0.01) duodenal mannose than treatments C, E1 and A. Ileal mannose was lower (P , 0.05) in treatment C compared with PFA treatments, and ileal galactose (Gal) was higher (P , 0.01) in treatments E2 and E3 compared with C and A. Polynomial contrast analysis with respect to PFA inclusion level showed that in 14-day-old broilers there was a linear increase (P 5 0.001) in duodenal mannose and a quadratic effect (P 5 0.038) in duodenal N-acetyl-galactosamine with increasing PFA level. Ileal Gal and mannose increased linearly (P 5 0.002 and P 5 0.012, respectively) with PFA inclusion level. There were no significant differences between treatments in mucin monosaccharide molar ratios of 42-day-old broilers. However, increasing PFA inclusion level resulted in a linear decrease of ileal fucose (P 5 0.021) and cecal N-acetylgalactosamine (P 5 0.036). Experimental treatments did not differ (P . 0.05) regarding duodenal villus height (Vh), crypt depth (Cd) and Vh/Cd ratio, irrespective of broiler age and the intestinal segment examined. However, increasing dietary PFA inclusion level showed a pattern of linear increase of duodenal Vh/Cd ratio in 14-day-old broilers and ileal Vh in 42-day-old broilers (P 5 0.039 and P 5 0.039, respectively). Alcian Blue-Periodic AcidSchiff (pH 2.5) staining of neutral and acidic mucins showed that the staining intensity of mucus layer in villi was fragment (i.e. tip, midsection and base) dependent, whereas in crypts it was dependent both on intestinal segment (i.e. duodenum, ileum and cecum) and fragment. Finally, mucus layer thickness did not differ (P . 0.05) between treatments, yet a pattern of linear increase (P , 0.05) with PFA inclusion level was observed in the duodenum of 42-day-old broilers. In conclusion, the dietary inclusion level of PFA modulated broiler intestinal mucin composition and morphology. Further studies are required to elucidate the physiological implications of such changes in host-microflora interactions.Keywords: phytogenic feed additive, essential oils, broiler, mucin, intestinal morphology ImplicationsThis study has shown that the inclusion level of a phytogenic feed additive in broiler diets has resulted in changes in the gut mucin monosaccharide composition and the intestinal mucosal architecture morphology. Given the fact that animal performance and disease prevention are prerequisite...

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Application of Aromatic Plants and Their Extracts in Livestock

Jin,

Panitsidis,

Vasilopoulos

et al. 2023

Sustainable Use of Feed Additives in Livestock

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Assessment of a phytogenic feed additive effect on broiler growth performance, nutrient digestibility and caecal microflora composition

Cited by 131 publications

References 34 publications

Performance, blood parameters, and carcass yield of broiler chickens supplemented with Mexican oregano oil

Performance, blood parameters, and carcass yield of broiler chickens supplemented with Mexican oregano oil

Modulation of intestinal mucin composition and mucosal morphology by dietary phytogenic inclusion level in broilers

Application of Aromatic Plants and Their Extracts in Livestock

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