Experimental Cyclic Heat Stress on Intestinal Permeability, Bone Mineralization, Leukocyte Proportions and Meat Quality in Broiler Chickens

The goal of this research was to assess cyclic heat stress on gut permeability, bone mineralization, and meat quality in chickens. Two separate trials were directed. 320 day-of-hatch Cobb 500 male chicks were randomly assigned to four thermoneutral (TN) and four cyclic heat stress (HS) chambers with...

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Main Authors: Alessandro Rocchi, Jared Ruff, Clay J. Maynard, Aaron J. Forga, Roberto Señas-Cuesta, Elizabeth S. Greene, Juan D. Latorre, Christine N. Vuong, Brittany D. Graham, Xochitl Hernandez-Velasco, Guillermo Tellez, Victor M. Petrone-Garcia, Lauren Laverty, Billy M. Hargis, Gisela F. Erf, Casey M. Owens, Guillermo Tellez-Isaias
Format: Article
Language:English
Published: MDPI AG 2022-05-01
Series:Animals
Subjects:
Online Access:https://www.mdpi.com/2076-2615/12/10/1273
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author Alessandro Rocchi
Jared Ruff
Clay J. Maynard
Aaron J. Forga
Roberto Señas-Cuesta
Elizabeth S. Greene
Juan D. Latorre
Christine N. Vuong
Brittany D. Graham
Xochitl Hernandez-Velasco
Guillermo Tellez
Victor M. Petrone-Garcia
Lauren Laverty
Billy M. Hargis
Gisela F. Erf
Casey M. Owens
Guillermo Tellez-Isaias
author_facet Alessandro Rocchi
Jared Ruff
Clay J. Maynard
Aaron J. Forga
Roberto Señas-Cuesta
Elizabeth S. Greene
Juan D. Latorre
Christine N. Vuong
Brittany D. Graham
Xochitl Hernandez-Velasco
Guillermo Tellez
Victor M. Petrone-Garcia
Lauren Laverty
Billy M. Hargis
Gisela F. Erf
Casey M. Owens
Guillermo Tellez-Isaias
author_sort Alessandro Rocchi
collection DOAJ
description The goal of this research was to assess cyclic heat stress on gut permeability, bone mineralization, and meat quality in chickens. Two separate trials were directed. 320 day-of-hatch Cobb 500 male chicks were randomly assigned to four thermoneutral (TN) and four cyclic heat stress (HS) chambers with two pens each, providing eight replicates per treatment in each trial (<i>n</i> = 20 chicks/replicate). Environmental conditions in the TN group were established to simulate commercial production settings. Heat stress chickens were exposed to cyclic HS at 35 °C for 12 h/day from days 7–42. Performance parameters, intestinal permeability, bone parameters, meat quality, and leukocyte proportions were estimated. There was a significant (<i>p</i> < 0.05) reduction in body weight (BW), BW gain, and feed intake, but the feed conversion ratio increased in chickens under cyclic HS. Moreover, HS chickens had a significantly higher gut permeability, monocyte and basophil levels, but less bone mineralization than TN chickens. Nevertheless, the TN group had significant increases in breast yield, woody breast, and white striping in breast fillets compared to HS. These results present an alternative model to our previously published continuous HS model to better reflect commercial conditions to evaluate commercially available nutraceuticals or products with claims of reducing the severity of heat stress.
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spelling doaj.art-126fe6206ff64b72a2d0ae07b924d3792023-11-23T09:46:31ZengMDPI AGAnimals2076-26152022-05-011210127310.3390/ani12101273Experimental Cyclic Heat Stress on Intestinal Permeability, Bone Mineralization, Leukocyte Proportions and Meat Quality in Broiler ChickensAlessandro Rocchi0Jared Ruff1Clay J. Maynard2Aaron J. Forga3Roberto Señas-Cuesta4Elizabeth S. Greene5Juan D. Latorre6Christine N. Vuong7Brittany D. Graham8Xochitl Hernandez-Velasco9Guillermo Tellez10Victor M. Petrone-Garcia11Lauren Laverty12Billy M. Hargis13Gisela F. Erf14Casey M. Owens15Guillermo Tellez-Isaias16Department of Poultry Science, University of Arkansas, Fayetteville, AR 72701, USADepartment of Poultry Science, University of Arkansas, Fayetteville, AR 72701, USADepartment of Poultry Science, University of Arkansas, Fayetteville, AR 72701, USADepartment of Poultry Science, University of Arkansas, Fayetteville, AR 72701, USADepartment of Poultry Science, University of Arkansas, Fayetteville, AR 72701, USADepartment of Poultry Science, University of Arkansas, Fayetteville, AR 72701, USADepartment of Poultry Science, University of Arkansas, Fayetteville, AR 72701, USADepartment of Poultry Science, University of Arkansas, Fayetteville, AR 72701, USADepartment of Poultry Science, University of Arkansas, Fayetteville, AR 72701, USADepartamento de Medicina y Zootecnia de Aves, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autonoma de Mexico, Mexico City 04510, MexicoDepartment of Poultry Science, University of Arkansas, Fayetteville, AR 72701, USAFacultad de Estudios Superiores Cuautitlan, Universidad Nacional Autonoma de Mexico, Cuautitlan Izcalli 54121, MexicoDepartment of Poultry Science, University of Arkansas, Fayetteville, AR 72701, USADepartment of Poultry Science, University of Arkansas, Fayetteville, AR 72701, USADepartment of Poultry Science, University of Arkansas, Fayetteville, AR 72701, USADepartment of Poultry Science, University of Arkansas, Fayetteville, AR 72701, USADepartment of Poultry Science, University of Arkansas, Fayetteville, AR 72701, USAThe goal of this research was to assess cyclic heat stress on gut permeability, bone mineralization, and meat quality in chickens. Two separate trials were directed. 320 day-of-hatch Cobb 500 male chicks were randomly assigned to four thermoneutral (TN) and four cyclic heat stress (HS) chambers with two pens each, providing eight replicates per treatment in each trial (<i>n</i> = 20 chicks/replicate). Environmental conditions in the TN group were established to simulate commercial production settings. Heat stress chickens were exposed to cyclic HS at 35 °C for 12 h/day from days 7–42. Performance parameters, intestinal permeability, bone parameters, meat quality, and leukocyte proportions were estimated. There was a significant (<i>p</i> < 0.05) reduction in body weight (BW), BW gain, and feed intake, but the feed conversion ratio increased in chickens under cyclic HS. Moreover, HS chickens had a significantly higher gut permeability, monocyte and basophil levels, but less bone mineralization than TN chickens. Nevertheless, the TN group had significant increases in breast yield, woody breast, and white striping in breast fillets compared to HS. These results present an alternative model to our previously published continuous HS model to better reflect commercial conditions to evaluate commercially available nutraceuticals or products with claims of reducing the severity of heat stress.https://www.mdpi.com/2076-2615/12/10/1273bone mineralizationchickensenteric inflammationheat stressparts weight
spellingShingle Alessandro Rocchi
Jared Ruff
Clay J. Maynard
Aaron J. Forga
Roberto Señas-Cuesta
Elizabeth S. Greene
Juan D. Latorre
Christine N. Vuong
Brittany D. Graham
Xochitl Hernandez-Velasco
Guillermo Tellez
Victor M. Petrone-Garcia
Lauren Laverty
Billy M. Hargis
Gisela F. Erf
Casey M. Owens
Guillermo Tellez-Isaias
Experimental Cyclic Heat Stress on Intestinal Permeability, Bone Mineralization, Leukocyte Proportions and Meat Quality in Broiler Chickens
Animals
bone mineralization
chickens
enteric inflammation
heat stress
parts weight
title Experimental Cyclic Heat Stress on Intestinal Permeability, Bone Mineralization, Leukocyte Proportions and Meat Quality in Broiler Chickens
title_full Experimental Cyclic Heat Stress on Intestinal Permeability, Bone Mineralization, Leukocyte Proportions and Meat Quality in Broiler Chickens
title_fullStr Experimental Cyclic Heat Stress on Intestinal Permeability, Bone Mineralization, Leukocyte Proportions and Meat Quality in Broiler Chickens
title_full_unstemmed Experimental Cyclic Heat Stress on Intestinal Permeability, Bone Mineralization, Leukocyte Proportions and Meat Quality in Broiler Chickens
title_short Experimental Cyclic Heat Stress on Intestinal Permeability, Bone Mineralization, Leukocyte Proportions and Meat Quality in Broiler Chickens
title_sort experimental cyclic heat stress on intestinal permeability bone mineralization leukocyte proportions and meat quality in broiler chickens
topic bone mineralization
chickens
enteric inflammation
heat stress
parts weight
url https://www.mdpi.com/2076-2615/12/10/1273
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