Acute heat stress effects on total heat production, respiration rate, and core body temperature in growing-finishing swine

T. M. Brown-Brandl, R. A. Eigenberg, J. A. Nienaber, Stephen D Kachman

Research output: Contribution to conferencePaper

1 Citation (Scopus)

Abstract

Researchers and producers alike have noted the increased susceptibility to heat stress exhibited by the newer genetic lines of pigs. A study was conducted to gather baseline information on the effects of acute heat stress on total heat production (THP), respiratory quotient (RQ), respiration rate (RR), and core body temperature (CBT) and to investigate the dynamic interaction of these parameters in growing-finishing barrows. Sixteen high-lean-growth barrows were randomly assigned to a set of treatments as dictated by a 4 × 4 Latin square crossover design. Pigs were moved from an individual pen to an indirect calorimeter where one of four environmental treatments (TRT) (18, 24, 28, 32 C) were applied for 20 h. During the treatment exposure RR, THP, RQ and CBT were measured. For the two-week period between treatments, pigs were housed at thermoneutral (22 C). Total heat production was found to be 17-20% higher than the published standards but comparable with other contemporary studies. Respiration rate was found to be a leading indicator of stress.

Original languageEnglish (US)
Pages4305-4316
Number of pages12
StatePublished - Dec 1 2000
Event2000 ASAE Annual International Meeting, Technical Papers: Engineering Solutions for a New Century - Milwaukee, WI., United States
Duration: Jul 9 2000Jul 12 2000

Conference

Conference2000 ASAE Annual International Meeting, Technical Papers: Engineering Solutions for a New Century
CountryUnited States
CityMilwaukee, WI.
Period7/9/007/12/00

Fingerprint

Enthalpy
Calorimeters
Temperature
Hot Temperature

Keywords

  • Calorimetry
  • Pigs
  • Respiratory quotient
  • Temperature
  • Thermoregulation

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Brown-Brandl, T. M., Eigenberg, R. A., Nienaber, J. A., & Kachman, S. D. (2000). Acute heat stress effects on total heat production, respiration rate, and core body temperature in growing-finishing swine. 4305-4316. Paper presented at 2000 ASAE Annual International Meeting, Technical Papers: Engineering Solutions for a New Century, Milwaukee, WI., United States.

Acute heat stress effects on total heat production, respiration rate, and core body temperature in growing-finishing swine. / Brown-Brandl, T. M.; Eigenberg, R. A.; Nienaber, J. A.; Kachman, Stephen D.

2000. 4305-4316 Paper presented at 2000 ASAE Annual International Meeting, Technical Papers: Engineering Solutions for a New Century, Milwaukee, WI., United States.

Research output: Contribution to conferencePaper

Brown-Brandl, TM, Eigenberg, RA, Nienaber, JA & Kachman, SD 2000, 'Acute heat stress effects on total heat production, respiration rate, and core body temperature in growing-finishing swine' Paper presented at 2000 ASAE Annual International Meeting, Technical Papers: Engineering Solutions for a New Century, Milwaukee, WI., United States, 7/9/00 - 7/12/00, pp. 4305-4316.
Brown-Brandl TM, Eigenberg RA, Nienaber JA, Kachman SD. Acute heat stress effects on total heat production, respiration rate, and core body temperature in growing-finishing swine. 2000. Paper presented at 2000 ASAE Annual International Meeting, Technical Papers: Engineering Solutions for a New Century, Milwaukee, WI., United States.
Brown-Brandl, T. M. ; Eigenberg, R. A. ; Nienaber, J. A. ; Kachman, Stephen D. / Acute heat stress effects on total heat production, respiration rate, and core body temperature in growing-finishing swine. Paper presented at 2000 ASAE Annual International Meeting, Technical Papers: Engineering Solutions for a New Century, Milwaukee, WI., United States.12 p.
@conference{d7d50e81643844f4b929240a66beb6f3,
title = "Acute heat stress effects on total heat production, respiration rate, and core body temperature in growing-finishing swine",
abstract = "Researchers and producers alike have noted the increased susceptibility to heat stress exhibited by the newer genetic lines of pigs. A study was conducted to gather baseline information on the effects of acute heat stress on total heat production (THP), respiratory quotient (RQ), respiration rate (RR), and core body temperature (CBT) and to investigate the dynamic interaction of these parameters in growing-finishing barrows. Sixteen high-lean-growth barrows were randomly assigned to a set of treatments as dictated by a 4 × 4 Latin square crossover design. Pigs were moved from an individual pen to an indirect calorimeter where one of four environmental treatments (TRT) (18, 24, 28, 32 C) were applied for 20 h. During the treatment exposure RR, THP, RQ and CBT were measured. For the two-week period between treatments, pigs were housed at thermoneutral (22 C). Total heat production was found to be 17-20{\%} higher than the published standards but comparable with other contemporary studies. Respiration rate was found to be a leading indicator of stress.",
keywords = "Calorimetry, Pigs, Respiratory quotient, Temperature, Thermoregulation",
author = "Brown-Brandl, {T. M.} and Eigenberg, {R. A.} and Nienaber, {J. A.} and Kachman, {Stephen D}",
year = "2000",
month = "12",
day = "1",
language = "English (US)",
pages = "4305--4316",
note = "2000 ASAE Annual International Meeting, Technical Papers: Engineering Solutions for a New Century ; Conference date: 09-07-2000 Through 12-07-2000",

}

TY - CONF

T1 - Acute heat stress effects on total heat production, respiration rate, and core body temperature in growing-finishing swine

AU - Brown-Brandl, T. M.

AU - Eigenberg, R. A.

AU - Nienaber, J. A.

AU - Kachman, Stephen D

PY - 2000/12/1

Y1 - 2000/12/1

N2 - Researchers and producers alike have noted the increased susceptibility to heat stress exhibited by the newer genetic lines of pigs. A study was conducted to gather baseline information on the effects of acute heat stress on total heat production (THP), respiratory quotient (RQ), respiration rate (RR), and core body temperature (CBT) and to investigate the dynamic interaction of these parameters in growing-finishing barrows. Sixteen high-lean-growth barrows were randomly assigned to a set of treatments as dictated by a 4 × 4 Latin square crossover design. Pigs were moved from an individual pen to an indirect calorimeter where one of four environmental treatments (TRT) (18, 24, 28, 32 C) were applied for 20 h. During the treatment exposure RR, THP, RQ and CBT were measured. For the two-week period between treatments, pigs were housed at thermoneutral (22 C). Total heat production was found to be 17-20% higher than the published standards but comparable with other contemporary studies. Respiration rate was found to be a leading indicator of stress.

AB - Researchers and producers alike have noted the increased susceptibility to heat stress exhibited by the newer genetic lines of pigs. A study was conducted to gather baseline information on the effects of acute heat stress on total heat production (THP), respiratory quotient (RQ), respiration rate (RR), and core body temperature (CBT) and to investigate the dynamic interaction of these parameters in growing-finishing barrows. Sixteen high-lean-growth barrows were randomly assigned to a set of treatments as dictated by a 4 × 4 Latin square crossover design. Pigs were moved from an individual pen to an indirect calorimeter where one of four environmental treatments (TRT) (18, 24, 28, 32 C) were applied for 20 h. During the treatment exposure RR, THP, RQ and CBT were measured. For the two-week period between treatments, pigs were housed at thermoneutral (22 C). Total heat production was found to be 17-20% higher than the published standards but comparable with other contemporary studies. Respiration rate was found to be a leading indicator of stress.

KW - Calorimetry

KW - Pigs

KW - Respiratory quotient

KW - Temperature

KW - Thermoregulation

UR - http://www.scopus.com/inward/record.url?scp=2342644892&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=2342644892&partnerID=8YFLogxK

M3 - Paper

SP - 4305

EP - 4316

ER -