Response of YPM x Ross 708 male broilers to diets containing varying inclusions of phytase, calcium butyrate, and bacitracin methylene disalicylate during the grower and finisher periods–part 2: Intestinal health and physiology

This study evaluated the effects of calcium butyrate (CB) and bacitracin methylene disalicylate 50 (BMD) combined with different phytase concentrations on broiler intestinal health and physiology. Day-old YPM x Ross 708 male broilers (2,880) were distributed in 72 floor pens and assigned to 1 of 9 t...

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Main Authors: Joseph P. Gulizia, Zubair Khalid, Maria T. Terra-Long, Jose I. Vargas, Jose R. Hernandez, Wilmer J. Pacheco, James T. Krehling, Kenneth S. Macklin, William A. Dozier, III, Klint W. McCafferty, Ruediger Hauck
Format: Article
Language:English
Published: Elsevier 2025-03-01
Series:Poultry Science
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Online Access:http://www.sciencedirect.com/science/article/pii/S0032579125000999
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author Joseph P. Gulizia
Zubair Khalid
Maria T. Terra-Long
Jose I. Vargas
Jose R. Hernandez
Wilmer J. Pacheco
James T. Krehling
Kenneth S. Macklin
William A. Dozier, III
Klint W. McCafferty
Ruediger Hauck
author_facet Joseph P. Gulizia
Zubair Khalid
Maria T. Terra-Long
Jose I. Vargas
Jose R. Hernandez
Wilmer J. Pacheco
James T. Krehling
Kenneth S. Macklin
William A. Dozier, III
Klint W. McCafferty
Ruediger Hauck
author_sort Joseph P. Gulizia
collection DOAJ
description This study evaluated the effects of calcium butyrate (CB) and bacitracin methylene disalicylate 50 (BMD) combined with different phytase concentrations on broiler intestinal health and physiology. Day-old YPM x Ross 708 male broilers (2,880) were distributed in 72 floor pens and assigned to 1 of 9 treatments (8 replicates/treatment). This experiment was a factorial arrangement including 2 phytase concentrations (500 or 1,500 FTU/kg) and 4 microbiota modulating feed additive levels (MMFA; (1) none, (2) only CB (0.5 g/kg of diet), (3) only BMD (55 mg/kg of diet), or (4) both CB and BMD). Additionally, a negative control without phytase and MMFA was included. Intestinal permeability was assessed on d 27. Jejunum wall and cecal content samples were collected on d 28 and 42 to assess jejunum villus height (VH), crypt depth, tight-junction and mucin gene expression, cecal microbiome diversity, and predicted bacterial metabolic pathways. Phytase and MMFA did not influence intestinal permeability (P > 0.05). Combining both CB and BMD with 1,500 FTU/kg of phytase compared to 500 FTU/kg lowered d 28 VH (P ≤ 0.05). Jejunal expression of CL-1, CL-4, CL-5, and ZO-2 on d 28 as well as CL-2 on d 42 changed between MMFA when combined with 1,500 FTU/kg of phytase but not 500 FTU/kg (P ≤ 0.05). Day 42 Pielou's evenness increased when 1,500 FTU/kg of phytase was combined with both CB and BMD compared to no MMFA (P ≤ 0.05). The cecal microbial beta diversity was not influenced by phytase, MMFA, or their interaction (P > 0.05). Overall, broiler intestinal health and physiology were influenced by CB and BMD depending on phytase concentration, demonstrating the complex interactions between these feed additives.
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spelling doaj-art-de2514ee8b0048b0af749d0baff5af2d2025-02-09T04:59:34ZengElsevierPoultry Science0032-57912025-03-011043104862Response of YPM x Ross 708 male broilers to diets containing varying inclusions of phytase, calcium butyrate, and bacitracin methylene disalicylate during the grower and finisher periods–part 2: Intestinal health and physiologyJoseph P. Gulizia0Zubair Khalid1Maria T. Terra-Long2Jose I. Vargas3Jose R. Hernandez4Wilmer J. Pacheco5James T. Krehling6Kenneth S. Macklin7William A. Dozier, III8Klint W. McCafferty9Ruediger Hauck10Department of Poultry Science, Auburn University, Auburn, AL 36849, United StatesDepartment of Pathobiology, Auburn University, Auburn, AL 36849, United StatesDepartment of Poultry Science, Auburn University, Auburn, AL 36849, United StatesDepartment of Poultry Science, Auburn University, Auburn, AL 36849, United StatesDepartment of Poultry Science, Auburn University, Auburn, AL 36849, United StatesDepartment of Poultry Science, Auburn University, Auburn, AL 36849, United StatesDepartment of Poultry Science, Auburn University, Auburn, AL 36849, United StatesDepartment of Poultry Science, Auburn University, Auburn, AL 36849, United StatesDepartment of Poultry Science, Auburn University, Auburn, AL 36849, United StatesUSDA-ARS Poultry Research Unit, Mississippi State, MS 39762, United StatesDepartment of Poultry Science, Auburn University, Auburn, AL 36849, United States; Department of Pathobiology, Auburn University, Auburn, AL 36849, United States; Corresponding author at: 260 Lem Morrison Dr., Auburn, AL 36849, United StatesThis study evaluated the effects of calcium butyrate (CB) and bacitracin methylene disalicylate 50 (BMD) combined with different phytase concentrations on broiler intestinal health and physiology. Day-old YPM x Ross 708 male broilers (2,880) were distributed in 72 floor pens and assigned to 1 of 9 treatments (8 replicates/treatment). This experiment was a factorial arrangement including 2 phytase concentrations (500 or 1,500 FTU/kg) and 4 microbiota modulating feed additive levels (MMFA; (1) none, (2) only CB (0.5 g/kg of diet), (3) only BMD (55 mg/kg of diet), or (4) both CB and BMD). Additionally, a negative control without phytase and MMFA was included. Intestinal permeability was assessed on d 27. Jejunum wall and cecal content samples were collected on d 28 and 42 to assess jejunum villus height (VH), crypt depth, tight-junction and mucin gene expression, cecal microbiome diversity, and predicted bacterial metabolic pathways. Phytase and MMFA did not influence intestinal permeability (P > 0.05). Combining both CB and BMD with 1,500 FTU/kg of phytase compared to 500 FTU/kg lowered d 28 VH (P ≤ 0.05). Jejunal expression of CL-1, CL-4, CL-5, and ZO-2 on d 28 as well as CL-2 on d 42 changed between MMFA when combined with 1,500 FTU/kg of phytase but not 500 FTU/kg (P ≤ 0.05). Day 42 Pielou's evenness increased when 1,500 FTU/kg of phytase was combined with both CB and BMD compared to no MMFA (P ≤ 0.05). The cecal microbial beta diversity was not influenced by phytase, MMFA, or their interaction (P > 0.05). Overall, broiler intestinal health and physiology were influenced by CB and BMD depending on phytase concentration, demonstrating the complex interactions between these feed additives.http://www.sciencedirect.com/science/article/pii/S0032579125000999PhytaseCalcium butyrateBacitracin methylene disalicylateBroilerHealth
spellingShingle Joseph P. Gulizia
Zubair Khalid
Maria T. Terra-Long
Jose I. Vargas
Jose R. Hernandez
Wilmer J. Pacheco
James T. Krehling
Kenneth S. Macklin
William A. Dozier, III
Klint W. McCafferty
Ruediger Hauck
Response of YPM x Ross 708 male broilers to diets containing varying inclusions of phytase, calcium butyrate, and bacitracin methylene disalicylate during the grower and finisher periods–part 2: Intestinal health and physiology
Poultry Science
Phytase
Calcium butyrate
Bacitracin methylene disalicylate
Broiler
Health
title Response of YPM x Ross 708 male broilers to diets containing varying inclusions of phytase, calcium butyrate, and bacitracin methylene disalicylate during the grower and finisher periods–part 2: Intestinal health and physiology
title_full Response of YPM x Ross 708 male broilers to diets containing varying inclusions of phytase, calcium butyrate, and bacitracin methylene disalicylate during the grower and finisher periods–part 2: Intestinal health and physiology
title_fullStr Response of YPM x Ross 708 male broilers to diets containing varying inclusions of phytase, calcium butyrate, and bacitracin methylene disalicylate during the grower and finisher periods–part 2: Intestinal health and physiology
title_full_unstemmed Response of YPM x Ross 708 male broilers to diets containing varying inclusions of phytase, calcium butyrate, and bacitracin methylene disalicylate during the grower and finisher periods–part 2: Intestinal health and physiology
title_short Response of YPM x Ross 708 male broilers to diets containing varying inclusions of phytase, calcium butyrate, and bacitracin methylene disalicylate during the grower and finisher periods–part 2: Intestinal health and physiology
title_sort response of ypm x ross 708 male broilers to diets containing varying inclusions of phytase calcium butyrate and bacitracin methylene disalicylate during the grower and finisher periods part 2 intestinal health and physiology
topic Phytase
Calcium butyrate
Bacitracin methylene disalicylate
Broiler
Health
url http://www.sciencedirect.com/science/article/pii/S0032579125000999
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