Effect of physical feed form, phytase super dosing, and/or citric acid on growth performance, phosphorus digestibility, and intestinal microbial population of broiler chickens

ABSTRACT We investigated the effects of feed form, phytase super dosing, and citric acid on growth performance, phosphorus digestibility, and intestinal microbial population of broiler chickens. For this purpose, 1000 newly hatched, straight-run Cobb 500 broiler chicks were assigned to 8 experimenta...

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Main Authors: M.M. Reihani, S.N. Mousavi, F. Froudi, K. Karimi
Format: Article
Language:English
Published: Universidade Federal de Minas Gerais 2025-01-01
Series:Arquivo Brasileiro de Medicina Veterinária e Zootecnia
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Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352025000100501&lng=en&tlng=en
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author M.M. Reihani
S.N. Mousavi
F. Froudi
K. Karimi
author_facet M.M. Reihani
S.N. Mousavi
F. Froudi
K. Karimi
author_sort M.M. Reihani
collection DOAJ
description ABSTRACT We investigated the effects of feed form, phytase super dosing, and citric acid on growth performance, phosphorus digestibility, and intestinal microbial population of broiler chickens. For this purpose, 1000 newly hatched, straight-run Cobb 500 broiler chicks were assigned to 8 experimental treatments with five replicate pens each and 25 broiler chickens per replicate in a 2x2x2 factorial arrangement with two forms of feed (pellets or mash), two phytase concentrations (0 or 2000 FTU per kg), and two citric acid levels (0 or 0.4% of diet) for 42 days. Birds fed pelleted feed showed higher weight gain and feed intake than those fed mash form (p<0.05). Adding citric acid and phytase to the pelleted diets compared to the mash diets resulted in elevated body weight gain in chickens (p<0.05). Compared to the mash diets, the addition of phytase to the pelleted diet reduced the cecal aerobic bacterial population (p<0.05). The addition of both phytase and citric acid to the pelleted diets enhanced the phosphorus and calcium digestibility (P<0.05). In general, the use of pellet form with a mixture of citric acid and phytase was better than other treatments to improve performance and digestibility of phosphorus and calcium.
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issn 1678-4162
language English
publishDate 2025-01-01
publisher Universidade Federal de Minas Gerais
record_format Article
series Arquivo Brasileiro de Medicina Veterinária e Zootecnia
spelling doaj-art-699e6a3971ae4dc19d012fa9f375e4342025-01-21T07:37:07ZengUniversidade Federal de Minas GeraisArquivo Brasileiro de Medicina Veterinária e Zootecnia1678-41622025-01-0177110.1590/1678-4162-13255Effect of physical feed form, phytase super dosing, and/or citric acid on growth performance, phosphorus digestibility, and intestinal microbial population of broiler chickensM.M. ReihaniS.N. Mousavihttps://orcid.org/0000-0001-9244-9494F. Froudihttps://orcid.org/0000-0002-8926-6766K. KarimiABSTRACT We investigated the effects of feed form, phytase super dosing, and citric acid on growth performance, phosphorus digestibility, and intestinal microbial population of broiler chickens. For this purpose, 1000 newly hatched, straight-run Cobb 500 broiler chicks were assigned to 8 experimental treatments with five replicate pens each and 25 broiler chickens per replicate in a 2x2x2 factorial arrangement with two forms of feed (pellets or mash), two phytase concentrations (0 or 2000 FTU per kg), and two citric acid levels (0 or 0.4% of diet) for 42 days. Birds fed pelleted feed showed higher weight gain and feed intake than those fed mash form (p<0.05). Adding citric acid and phytase to the pelleted diets compared to the mash diets resulted in elevated body weight gain in chickens (p<0.05). Compared to the mash diets, the addition of phytase to the pelleted diet reduced the cecal aerobic bacterial population (p<0.05). The addition of both phytase and citric acid to the pelleted diets enhanced the phosphorus and calcium digestibility (P<0.05). In general, the use of pellet form with a mixture of citric acid and phytase was better than other treatments to improve performance and digestibility of phosphorus and calcium.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352025000100501&lng=en&tlng=enbroiler chickenscitric acidfeed formphytase
spellingShingle M.M. Reihani
S.N. Mousavi
F. Froudi
K. Karimi
Effect of physical feed form, phytase super dosing, and/or citric acid on growth performance, phosphorus digestibility, and intestinal microbial population of broiler chickens
Arquivo Brasileiro de Medicina Veterinária e Zootecnia
broiler chickens
citric acid
feed form
phytase
title Effect of physical feed form, phytase super dosing, and/or citric acid on growth performance, phosphorus digestibility, and intestinal microbial population of broiler chickens
title_full Effect of physical feed form, phytase super dosing, and/or citric acid on growth performance, phosphorus digestibility, and intestinal microbial population of broiler chickens
title_fullStr Effect of physical feed form, phytase super dosing, and/or citric acid on growth performance, phosphorus digestibility, and intestinal microbial population of broiler chickens
title_full_unstemmed Effect of physical feed form, phytase super dosing, and/or citric acid on growth performance, phosphorus digestibility, and intestinal microbial population of broiler chickens
title_short Effect of physical feed form, phytase super dosing, and/or citric acid on growth performance, phosphorus digestibility, and intestinal microbial population of broiler chickens
title_sort effect of physical feed form phytase super dosing and or citric acid on growth performance phosphorus digestibility and intestinal microbial population of broiler chickens
topic broiler chickens
citric acid
feed form
phytase
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352025000100501&lng=en&tlng=en
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