Thermal comfort evaluation of three genetic lines of nursery pigs using thermal images

Modern swine heat production is 6–41% higher than documented in engineering standards. This higher heat production indicates that the ideal thermal neutral temperature may have changed. Thermal comfort is critical to maximise production and well-being of modern swine. Measurements of posture, skin t...
Ausführliche Beschreibung

Gespeichert in:

Autor*in:	Brown-Brandl, Tami M. [verfasserIn] Hayes, Morgan D. [verfasserIn] Rohrer, Gary A. [verfasserIn] Eigenberg, Roger A. [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2022

Schlagwörter:	Genetics Nursery pig Surface temperature Thermal comfort

Übergeordnetes Werk:	Enthalten in: Biosystems engineering - Amsterdam : Elsevier, 2002, 225, Seite 1-12
Übergeordnetes Werk:	volume:225 ; pages:1-12

DOI / URN:	10.1016/j.biosystemseng.2022.11.002

Katalog-ID:	ELV00906141X

Internformat


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520			\|a Modern swine heat production is 6–41% higher than documented in engineering standards. This higher heat production indicates that the ideal thermal neutral temperature may have changed. Thermal comfort is critical to maximise production and well-being of modern swine. Measurements of posture, skin temperature, and ear temperature profile changes with air temperature were evaluated for three modern pig genetic lines. A total 180 nursery pigs (30 animal per sire – 3 breeds: Duroc, Landrace, and Yorkshire) were acutely exposed to each of seven temperatures (20 °C, 22.5 °C, 25 °C, 27.5 °C, 30 °C, 32.5 °C, 35 °C) over a 13-day period. Time-lapse images were taken every 5-min of 10 pens with 18 pigs each to document posture and floor space. Individual thermal images were captured on 12 pigs/sire-breed – 36 total at each temperature. Thermal images were used to assess trunk and ear surface temperatures. Temperatures along the centerline of the ear were also evaluated for each pig 12 pigs/sire line – 36 total. Changes in the average trunk surface temperature were fit to two separate linear regression equations – above and below the standard temperature of 27.5°C. The two regression lines were solved simultaneously to estimate the thermoneutral temperature. The threshold temperatures were determined to be 26.1°C for Duroc sired pigs, 27.9°C for Yorkshire sired pigs and 28.8°C for Landrace sired pigs. Based on the results of this study the standard set point of 27.5°C is appropriate for nursery pigs.
650		4	\|a Genetics
650		4	\|a Nursery pig
650		4	\|a Surface temperature
650		4	\|a Thermal comfort
700	1		\|a Hayes, Morgan D. \|e verfasserin \|4 aut
700	1		\|a Rohrer, Gary A. \|e verfasserin \|4 aut
700	1		\|a Eigenberg, Roger A. \|e verfasserin \|4 aut
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912			\|a GBV_ILN_2027
912			\|a GBV_ILN_2034
912			\|a GBV_ILN_2038
912			\|a GBV_ILN_2044
912			\|a GBV_ILN_2048
912			\|a GBV_ILN_2049
912			\|a GBV_ILN_2050
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912			\|a GBV_ILN_2059
912			\|a GBV_ILN_2061
912			\|a GBV_ILN_2064
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912			\|a GBV_ILN_2068
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912			\|a GBV_ILN_2112
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912			\|a GBV_ILN_4313
912			\|a GBV_ILN_4323
912			\|a GBV_ILN_4324
912			\|a GBV_ILN_4325
912			\|a GBV_ILN_4326
912			\|a GBV_ILN_4333
912			\|a GBV_ILN_4334
912			\|a GBV_ILN_4335
912			\|a GBV_ILN_4338
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936	b	k	\|a 48.20 \|j Landtechnik \|j Forsttechnik
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publishDate	2022
allfields	10.1016/j.biosystemseng.2022.11.002 doi (DE-627)ELV00906141X (ELSEVIER)S1537-5110(22)00255-0 DE-627 ger DE-627 rda eng 570 DE-600 BIODIV DE-30 fid 48.20 bkl Brown-Brandl, Tami M. verfasserin (orcid)0000-0002-0874-8035 aut Thermal comfort evaluation of three genetic lines of nursery pigs using thermal images 2022 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Modern swine heat production is 6–41% higher than documented in engineering standards. This higher heat production indicates that the ideal thermal neutral temperature may have changed. Thermal comfort is critical to maximise production and well-being of modern swine. Measurements of posture, skin temperature, and ear temperature profile changes with air temperature were evaluated for three modern pig genetic lines. A total 180 nursery pigs (30 animal per sire – 3 breeds: Duroc, Landrace, and Yorkshire) were acutely exposed to each of seven temperatures (20 °C, 22.5 °C, 25 °C, 27.5 °C, 30 °C, 32.5 °C, 35 °C) over a 13-day period. Time-lapse images were taken every 5-min of 10 pens with 18 pigs each to document posture and floor space. Individual thermal images were captured on 12 pigs/sire-breed – 36 total at each temperature. Thermal images were used to assess trunk and ear surface temperatures. Temperatures along the centerline of the ear were also evaluated for each pig 12 pigs/sire line – 36 total. Changes in the average trunk surface temperature were fit to two separate linear regression equations – above and below the standard temperature of 27.5°C. The two regression lines were solved simultaneously to estimate the thermoneutral temperature. The threshold temperatures were determined to be 26.1°C for Duroc sired pigs, 27.9°C for Yorkshire sired pigs and 28.8°C for Landrace sired pigs. Based on the results of this study the standard set point of 27.5°C is appropriate for nursery pigs. Genetics Nursery pig Surface temperature Thermal comfort Hayes, Morgan D. verfasserin aut Rohrer, Gary A. verfasserin aut Eigenberg, Roger A. verfasserin aut Enthalten in Biosystems engineering Amsterdam : Elsevier, 2002 225, Seite 1-12 Online-Ressource (DE-627)342894803 (DE-600)2072707-0 (DE-576)109839277 1537-5129 nnns volume:225 pages:1-12 GBV_USEFLAG_U SYSFLAG_U GBV_ELV FID-BIODIV SSG-OLC-PHA SSG-OPC-FOR GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 48.20 Landtechnik Forsttechnik AR 225 1-12
spelling	10.1016/j.biosystemseng.2022.11.002 doi (DE-627)ELV00906141X (ELSEVIER)S1537-5110(22)00255-0 DE-627 ger DE-627 rda eng 570 DE-600 BIODIV DE-30 fid 48.20 bkl Brown-Brandl, Tami M. verfasserin (orcid)0000-0002-0874-8035 aut Thermal comfort evaluation of three genetic lines of nursery pigs using thermal images 2022 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Modern swine heat production is 6–41% higher than documented in engineering standards. This higher heat production indicates that the ideal thermal neutral temperature may have changed. Thermal comfort is critical to maximise production and well-being of modern swine. Measurements of posture, skin temperature, and ear temperature profile changes with air temperature were evaluated for three modern pig genetic lines. A total 180 nursery pigs (30 animal per sire – 3 breeds: Duroc, Landrace, and Yorkshire) were acutely exposed to each of seven temperatures (20 °C, 22.5 °C, 25 °C, 27.5 °C, 30 °C, 32.5 °C, 35 °C) over a 13-day period. Time-lapse images were taken every 5-min of 10 pens with 18 pigs each to document posture and floor space. Individual thermal images were captured on 12 pigs/sire-breed – 36 total at each temperature. Thermal images were used to assess trunk and ear surface temperatures. Temperatures along the centerline of the ear were also evaluated for each pig 12 pigs/sire line – 36 total. Changes in the average trunk surface temperature were fit to two separate linear regression equations – above and below the standard temperature of 27.5°C. The two regression lines were solved simultaneously to estimate the thermoneutral temperature. The threshold temperatures were determined to be 26.1°C for Duroc sired pigs, 27.9°C for Yorkshire sired pigs and 28.8°C for Landrace sired pigs. Based on the results of this study the standard set point of 27.5°C is appropriate for nursery pigs. Genetics Nursery pig Surface temperature Thermal comfort Hayes, Morgan D. verfasserin aut Rohrer, Gary A. verfasserin aut Eigenberg, Roger A. verfasserin aut Enthalten in Biosystems engineering Amsterdam : Elsevier, 2002 225, Seite 1-12 Online-Ressource (DE-627)342894803 (DE-600)2072707-0 (DE-576)109839277 1537-5129 nnns volume:225 pages:1-12 GBV_USEFLAG_U SYSFLAG_U GBV_ELV FID-BIODIV SSG-OLC-PHA SSG-OPC-FOR GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 48.20 Landtechnik Forsttechnik AR 225 1-12
allfields_unstemmed	10.1016/j.biosystemseng.2022.11.002 doi (DE-627)ELV00906141X (ELSEVIER)S1537-5110(22)00255-0 DE-627 ger DE-627 rda eng 570 DE-600 BIODIV DE-30 fid 48.20 bkl Brown-Brandl, Tami M. verfasserin (orcid)0000-0002-0874-8035 aut Thermal comfort evaluation of three genetic lines of nursery pigs using thermal images 2022 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Modern swine heat production is 6–41% higher than documented in engineering standards. This higher heat production indicates that the ideal thermal neutral temperature may have changed. Thermal comfort is critical to maximise production and well-being of modern swine. Measurements of posture, skin temperature, and ear temperature profile changes with air temperature were evaluated for three modern pig genetic lines. A total 180 nursery pigs (30 animal per sire – 3 breeds: Duroc, Landrace, and Yorkshire) were acutely exposed to each of seven temperatures (20 °C, 22.5 °C, 25 °C, 27.5 °C, 30 °C, 32.5 °C, 35 °C) over a 13-day period. Time-lapse images were taken every 5-min of 10 pens with 18 pigs each to document posture and floor space. Individual thermal images were captured on 12 pigs/sire-breed – 36 total at each temperature. Thermal images were used to assess trunk and ear surface temperatures. Temperatures along the centerline of the ear were also evaluated for each pig 12 pigs/sire line – 36 total. Changes in the average trunk surface temperature were fit to two separate linear regression equations – above and below the standard temperature of 27.5°C. The two regression lines were solved simultaneously to estimate the thermoneutral temperature. The threshold temperatures were determined to be 26.1°C for Duroc sired pigs, 27.9°C for Yorkshire sired pigs and 28.8°C for Landrace sired pigs. Based on the results of this study the standard set point of 27.5°C is appropriate for nursery pigs. Genetics Nursery pig Surface temperature Thermal comfort Hayes, Morgan D. verfasserin aut Rohrer, Gary A. verfasserin aut Eigenberg, Roger A. verfasserin aut Enthalten in Biosystems engineering Amsterdam : Elsevier, 2002 225, Seite 1-12 Online-Ressource (DE-627)342894803 (DE-600)2072707-0 (DE-576)109839277 1537-5129 nnns volume:225 pages:1-12 GBV_USEFLAG_U SYSFLAG_U GBV_ELV FID-BIODIV SSG-OLC-PHA SSG-OPC-FOR GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 48.20 Landtechnik Forsttechnik AR 225 1-12
allfieldsGer	10.1016/j.biosystemseng.2022.11.002 doi (DE-627)ELV00906141X (ELSEVIER)S1537-5110(22)00255-0 DE-627 ger DE-627 rda eng 570 DE-600 BIODIV DE-30 fid 48.20 bkl Brown-Brandl, Tami M. verfasserin (orcid)0000-0002-0874-8035 aut Thermal comfort evaluation of three genetic lines of nursery pigs using thermal images 2022 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Modern swine heat production is 6–41% higher than documented in engineering standards. This higher heat production indicates that the ideal thermal neutral temperature may have changed. Thermal comfort is critical to maximise production and well-being of modern swine. Measurements of posture, skin temperature, and ear temperature profile changes with air temperature were evaluated for three modern pig genetic lines. A total 180 nursery pigs (30 animal per sire – 3 breeds: Duroc, Landrace, and Yorkshire) were acutely exposed to each of seven temperatures (20 °C, 22.5 °C, 25 °C, 27.5 °C, 30 °C, 32.5 °C, 35 °C) over a 13-day period. Time-lapse images were taken every 5-min of 10 pens with 18 pigs each to document posture and floor space. Individual thermal images were captured on 12 pigs/sire-breed – 36 total at each temperature. Thermal images were used to assess trunk and ear surface temperatures. Temperatures along the centerline of the ear were also evaluated for each pig 12 pigs/sire line – 36 total. Changes in the average trunk surface temperature were fit to two separate linear regression equations – above and below the standard temperature of 27.5°C. The two regression lines were solved simultaneously to estimate the thermoneutral temperature. The threshold temperatures were determined to be 26.1°C for Duroc sired pigs, 27.9°C for Yorkshire sired pigs and 28.8°C for Landrace sired pigs. Based on the results of this study the standard set point of 27.5°C is appropriate for nursery pigs. Genetics Nursery pig Surface temperature Thermal comfort Hayes, Morgan D. verfasserin aut Rohrer, Gary A. verfasserin aut Eigenberg, Roger A. verfasserin aut Enthalten in Biosystems engineering Amsterdam : Elsevier, 2002 225, Seite 1-12 Online-Ressource (DE-627)342894803 (DE-600)2072707-0 (DE-576)109839277 1537-5129 nnns volume:225 pages:1-12 GBV_USEFLAG_U SYSFLAG_U GBV_ELV FID-BIODIV SSG-OLC-PHA SSG-OPC-FOR GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 48.20 Landtechnik Forsttechnik AR 225 1-12
allfieldsSound	10.1016/j.biosystemseng.2022.11.002 doi (DE-627)ELV00906141X (ELSEVIER)S1537-5110(22)00255-0 DE-627 ger DE-627 rda eng 570 DE-600 BIODIV DE-30 fid 48.20 bkl Brown-Brandl, Tami M. verfasserin (orcid)0000-0002-0874-8035 aut Thermal comfort evaluation of three genetic lines of nursery pigs using thermal images 2022 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Modern swine heat production is 6–41% higher than documented in engineering standards. This higher heat production indicates that the ideal thermal neutral temperature may have changed. Thermal comfort is critical to maximise production and well-being of modern swine. Measurements of posture, skin temperature, and ear temperature profile changes with air temperature were evaluated for three modern pig genetic lines. A total 180 nursery pigs (30 animal per sire – 3 breeds: Duroc, Landrace, and Yorkshire) were acutely exposed to each of seven temperatures (20 °C, 22.5 °C, 25 °C, 27.5 °C, 30 °C, 32.5 °C, 35 °C) over a 13-day period. Time-lapse images were taken every 5-min of 10 pens with 18 pigs each to document posture and floor space. Individual thermal images were captured on 12 pigs/sire-breed – 36 total at each temperature. Thermal images were used to assess trunk and ear surface temperatures. Temperatures along the centerline of the ear were also evaluated for each pig 12 pigs/sire line – 36 total. Changes in the average trunk surface temperature were fit to two separate linear regression equations – above and below the standard temperature of 27.5°C. The two regression lines were solved simultaneously to estimate the thermoneutral temperature. The threshold temperatures were determined to be 26.1°C for Duroc sired pigs, 27.9°C for Yorkshire sired pigs and 28.8°C for Landrace sired pigs. Based on the results of this study the standard set point of 27.5°C is appropriate for nursery pigs. Genetics Nursery pig Surface temperature Thermal comfort Hayes, Morgan D. verfasserin aut Rohrer, Gary A. verfasserin aut Eigenberg, Roger A. verfasserin aut Enthalten in Biosystems engineering Amsterdam : Elsevier, 2002 225, Seite 1-12 Online-Ressource (DE-627)342894803 (DE-600)2072707-0 (DE-576)109839277 1537-5129 nnns volume:225 pages:1-12 GBV_USEFLAG_U SYSFLAG_U GBV_ELV FID-BIODIV SSG-OLC-PHA SSG-OPC-FOR GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 48.20 Landtechnik Forsttechnik AR 225 1-12
language	English
source	Enthalten in Biosystems engineering 225, Seite 1-12 volume:225 pages:1-12
sourceStr	Enthalten in Biosystems engineering 225, Seite 1-12 volume:225 pages:1-12
format_phy_str_mv	Article
bklname	Landtechnik Forsttechnik
institution	findex.gbv.de
topic_facet	Genetics Nursery pig Surface temperature Thermal comfort
dewey-raw	570
isfreeaccess_bool	false
container_title	Biosystems engineering
authorswithroles_txt_mv	Brown-Brandl, Tami M. @@aut@@ Hayes, Morgan D. @@aut@@ Rohrer, Gary A. @@aut@@ Eigenberg, Roger A. @@aut@@
publishDateDaySort_date	2022-01-01T00:00:00Z
hierarchy_top_id	342894803
dewey-sort	3570
id	ELV00906141X
language_de	englisch
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author	Brown-Brandl, Tami M.
spellingShingle	Brown-Brandl, Tami M. ddc 570 fid BIODIV bkl 48.20 misc Genetics misc Nursery pig misc Surface temperature misc Thermal comfort Thermal comfort evaluation of three genetic lines of nursery pigs using thermal images
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topic_title	570 DE-600 BIODIV DE-30 fid 48.20 bkl Thermal comfort evaluation of three genetic lines of nursery pigs using thermal images Genetics Nursery pig Surface temperature Thermal comfort
topic	ddc 570 fid BIODIV bkl 48.20 misc Genetics misc Nursery pig misc Surface temperature misc Thermal comfort
topic_unstemmed	ddc 570 fid BIODIV bkl 48.20 misc Genetics misc Nursery pig misc Surface temperature misc Thermal comfort
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title	Thermal comfort evaluation of three genetic lines of nursery pigs using thermal images
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title_full	Thermal comfort evaluation of three genetic lines of nursery pigs using thermal images
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title_sort	thermal comfort evaluation of three genetic lines of nursery pigs using thermal images
title_auth	Thermal comfort evaluation of three genetic lines of nursery pigs using thermal images
abstract	Modern swine heat production is 6–41% higher than documented in engineering standards. This higher heat production indicates that the ideal thermal neutral temperature may have changed. Thermal comfort is critical to maximise production and well-being of modern swine. Measurements of posture, skin temperature, and ear temperature profile changes with air temperature were evaluated for three modern pig genetic lines. A total 180 nursery pigs (30 animal per sire – 3 breeds: Duroc, Landrace, and Yorkshire) were acutely exposed to each of seven temperatures (20 °C, 22.5 °C, 25 °C, 27.5 °C, 30 °C, 32.5 °C, 35 °C) over a 13-day period. Time-lapse images were taken every 5-min of 10 pens with 18 pigs each to document posture and floor space. Individual thermal images were captured on 12 pigs/sire-breed – 36 total at each temperature. Thermal images were used to assess trunk and ear surface temperatures. Temperatures along the centerline of the ear were also evaluated for each pig 12 pigs/sire line – 36 total. Changes in the average trunk surface temperature were fit to two separate linear regression equations – above and below the standard temperature of 27.5°C. The two regression lines were solved simultaneously to estimate the thermoneutral temperature. The threshold temperatures were determined to be 26.1°C for Duroc sired pigs, 27.9°C for Yorkshire sired pigs and 28.8°C for Landrace sired pigs. Based on the results of this study the standard set point of 27.5°C is appropriate for nursery pigs.
abstractGer	Modern swine heat production is 6–41% higher than documented in engineering standards. This higher heat production indicates that the ideal thermal neutral temperature may have changed. Thermal comfort is critical to maximise production and well-being of modern swine. Measurements of posture, skin temperature, and ear temperature profile changes with air temperature were evaluated for three modern pig genetic lines. A total 180 nursery pigs (30 animal per sire – 3 breeds: Duroc, Landrace, and Yorkshire) were acutely exposed to each of seven temperatures (20 °C, 22.5 °C, 25 °C, 27.5 °C, 30 °C, 32.5 °C, 35 °C) over a 13-day period. Time-lapse images were taken every 5-min of 10 pens with 18 pigs each to document posture and floor space. Individual thermal images were captured on 12 pigs/sire-breed – 36 total at each temperature. Thermal images were used to assess trunk and ear surface temperatures. Temperatures along the centerline of the ear were also evaluated for each pig 12 pigs/sire line – 36 total. Changes in the average trunk surface temperature were fit to two separate linear regression equations – above and below the standard temperature of 27.5°C. The two regression lines were solved simultaneously to estimate the thermoneutral temperature. The threshold temperatures were determined to be 26.1°C for Duroc sired pigs, 27.9°C for Yorkshire sired pigs and 28.8°C for Landrace sired pigs. Based on the results of this study the standard set point of 27.5°C is appropriate for nursery pigs.
abstract_unstemmed	Modern swine heat production is 6–41% higher than documented in engineering standards. This higher heat production indicates that the ideal thermal neutral temperature may have changed. Thermal comfort is critical to maximise production and well-being of modern swine. Measurements of posture, skin temperature, and ear temperature profile changes with air temperature were evaluated for three modern pig genetic lines. A total 180 nursery pigs (30 animal per sire – 3 breeds: Duroc, Landrace, and Yorkshire) were acutely exposed to each of seven temperatures (20 °C, 22.5 °C, 25 °C, 27.5 °C, 30 °C, 32.5 °C, 35 °C) over a 13-day period. Time-lapse images were taken every 5-min of 10 pens with 18 pigs each to document posture and floor space. Individual thermal images were captured on 12 pigs/sire-breed – 36 total at each temperature. Thermal images were used to assess trunk and ear surface temperatures. Temperatures along the centerline of the ear were also evaluated for each pig 12 pigs/sire line – 36 total. Changes in the average trunk surface temperature were fit to two separate linear regression equations – above and below the standard temperature of 27.5°C. The two regression lines were solved simultaneously to estimate the thermoneutral temperature. The threshold temperatures were determined to be 26.1°C for Duroc sired pigs, 27.9°C for Yorkshire sired pigs and 28.8°C for Landrace sired pigs. Based on the results of this study the standard set point of 27.5°C is appropriate for nursery pigs.
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title_short	Thermal comfort evaluation of three genetic lines of nursery pigs using thermal images
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author2	Hayes, Morgan D. Rohrer, Gary A. Eigenberg, Roger A.
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up_date	2024-07-06T21:51:15.369Z
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Thermal comfort evaluation of three genetic lines of nursery pigs using thermal images

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