Evaluation of heat stress threshold and impacts on milk yield in dairy cattle crossbreds in a hot and humid climate
Abstract Heat stress is a major challenge in dairy cattle farming and leads to economic losses. This study aims to determine the impact of heat stress on dairy cattle under a hot and humid climate. Milk yield test records between 2015 to 2019 were collected from 532 first lactating Friesian crossbre...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Michael, Predith [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2023 |
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| Anmerkung: |
© The Author(s), under exclusive licence to Springer-Verlag GmbH Austria, part of Springer Nature 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. |
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| Übergeordnetes Werk: |
Enthalten in: Theoretical and applied climatology - Wien [u.a.] : Springer, 1948, 154(2023), 1-2 vom: 13. Juli, Seite 235-244 |
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| Übergeordnetes Werk: |
volume:154 ; year:2023 ; number:1-2 ; day:13 ; month:07 ; pages:235-244 |
| Links: |
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| DOI / URN: |
10.1007/s00704-023-04549-3 |
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SPR053323807 |
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| 520 | |a Abstract Heat stress is a major challenge in dairy cattle farming and leads to economic losses. This study aims to determine the impact of heat stress on dairy cattle under a hot and humid climate. Milk yield test records between 2015 to 2019 were collected from 532 first lactating Friesian crossbred cows. Hourly values of temperature (dry bulb), relative humidity, surface wind speed, and solar radiation over 24 h collected from the national weather station in Malaysia were averaged and computed into four temperature indexes (TI). The heat stress threshold was identified using a two-slope broken line regression and the magnitude of milk loss was determined by the degree of decline fitted to a Legendre polynomial regression. Environmental parameters and TI values were observed to be influenced by the dry and monsoon season. Thresholds reported ranged between 73 ($ TI_{4} $) to 79 ($ TI_{3} $) according to the respective TI measured. The index values were higher than the reported studies in temperate, semi-arid and mediterranean climates. The largest milk decline was determined as 0.181 kg in mild, 0.267 kg in moderate, and 0.523 kg in extreme heat stress conditions, respectively, when using the conventional $ TI_{1} $. Thresholds determined in the current study can be used for annual forecasting and targeted heat stress mitigation efforts. | ||
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10.1007/s00704-023-04549-3 doi (DE-627)SPR053323807 (SPR)s00704-023-04549-3-e DE-627 ger DE-627 rakwb eng Michael, Predith verfasserin (orcid)0000-0001-9866-2245 aut Evaluation of heat stress threshold and impacts on milk yield in dairy cattle crossbreds in a hot and humid climate 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Author(s), under exclusive licence to Springer-Verlag GmbH Austria, part of Springer Nature 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. Abstract Heat stress is a major challenge in dairy cattle farming and leads to economic losses. This study aims to determine the impact of heat stress on dairy cattle under a hot and humid climate. Milk yield test records between 2015 to 2019 were collected from 532 first lactating Friesian crossbred cows. Hourly values of temperature (dry bulb), relative humidity, surface wind speed, and solar radiation over 24 h collected from the national weather station in Malaysia were averaged and computed into four temperature indexes (TI). The heat stress threshold was identified using a two-slope broken line regression and the magnitude of milk loss was determined by the degree of decline fitted to a Legendre polynomial regression. Environmental parameters and TI values were observed to be influenced by the dry and monsoon season. Thresholds reported ranged between 73 ($ TI_{4} $) to 79 ($ TI_{3} $) according to the respective TI measured. The index values were higher than the reported studies in temperate, semi-arid and mediterranean climates. The largest milk decline was determined as 0.181 kg in mild, 0.267 kg in moderate, and 0.523 kg in extreme heat stress conditions, respectively, when using the conventional $ TI_{1} $. Thresholds determined in the current study can be used for annual forecasting and targeted heat stress mitigation efforts. de Cruz, Clement Roy (orcid)0000-0002-5645-1084 aut Mohd Nor, Norhariani (orcid)0000-0001-8577-0634 aut Jamli, Saadiah (orcid)0000-0001-6345-151X aut Goh, Yong Meng (orcid)0000-0003-1237-2170 aut Enthalten in Theoretical and applied climatology Wien [u.a.] : Springer, 1948 154(2023), 1-2 vom: 13. Juli, Seite 235-244 (DE-627)25490968X (DE-600)1463177-5 1434-4483 nnns volume:154 year:2023 number:1-2 day:13 month:07 pages:235-244 https://dx.doi.org/10.1007/s00704-023-04549-3 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_267 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 154 2023 1-2 13 07 235-244 |
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10.1007/s00704-023-04549-3 doi (DE-627)SPR053323807 (SPR)s00704-023-04549-3-e DE-627 ger DE-627 rakwb eng Michael, Predith verfasserin (orcid)0000-0001-9866-2245 aut Evaluation of heat stress threshold and impacts on milk yield in dairy cattle crossbreds in a hot and humid climate 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Author(s), under exclusive licence to Springer-Verlag GmbH Austria, part of Springer Nature 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. Abstract Heat stress is a major challenge in dairy cattle farming and leads to economic losses. This study aims to determine the impact of heat stress on dairy cattle under a hot and humid climate. Milk yield test records between 2015 to 2019 were collected from 532 first lactating Friesian crossbred cows. Hourly values of temperature (dry bulb), relative humidity, surface wind speed, and solar radiation over 24 h collected from the national weather station in Malaysia were averaged and computed into four temperature indexes (TI). The heat stress threshold was identified using a two-slope broken line regression and the magnitude of milk loss was determined by the degree of decline fitted to a Legendre polynomial regression. Environmental parameters and TI values were observed to be influenced by the dry and monsoon season. Thresholds reported ranged between 73 ($ TI_{4} $) to 79 ($ TI_{3} $) according to the respective TI measured. The index values were higher than the reported studies in temperate, semi-arid and mediterranean climates. The largest milk decline was determined as 0.181 kg in mild, 0.267 kg in moderate, and 0.523 kg in extreme heat stress conditions, respectively, when using the conventional $ TI_{1} $. Thresholds determined in the current study can be used for annual forecasting and targeted heat stress mitigation efforts. de Cruz, Clement Roy (orcid)0000-0002-5645-1084 aut Mohd Nor, Norhariani (orcid)0000-0001-8577-0634 aut Jamli, Saadiah (orcid)0000-0001-6345-151X aut Goh, Yong Meng (orcid)0000-0003-1237-2170 aut Enthalten in Theoretical and applied climatology Wien [u.a.] : Springer, 1948 154(2023), 1-2 vom: 13. Juli, Seite 235-244 (DE-627)25490968X (DE-600)1463177-5 1434-4483 nnns volume:154 year:2023 number:1-2 day:13 month:07 pages:235-244 https://dx.doi.org/10.1007/s00704-023-04549-3 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_267 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 154 2023 1-2 13 07 235-244 |
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10.1007/s00704-023-04549-3 doi (DE-627)SPR053323807 (SPR)s00704-023-04549-3-e DE-627 ger DE-627 rakwb eng Michael, Predith verfasserin (orcid)0000-0001-9866-2245 aut Evaluation of heat stress threshold and impacts on milk yield in dairy cattle crossbreds in a hot and humid climate 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Author(s), under exclusive licence to Springer-Verlag GmbH Austria, part of Springer Nature 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. Abstract Heat stress is a major challenge in dairy cattle farming and leads to economic losses. This study aims to determine the impact of heat stress on dairy cattle under a hot and humid climate. Milk yield test records between 2015 to 2019 were collected from 532 first lactating Friesian crossbred cows. Hourly values of temperature (dry bulb), relative humidity, surface wind speed, and solar radiation over 24 h collected from the national weather station in Malaysia were averaged and computed into four temperature indexes (TI). The heat stress threshold was identified using a two-slope broken line regression and the magnitude of milk loss was determined by the degree of decline fitted to a Legendre polynomial regression. Environmental parameters and TI values were observed to be influenced by the dry and monsoon season. Thresholds reported ranged between 73 ($ TI_{4} $) to 79 ($ TI_{3} $) according to the respective TI measured. The index values were higher than the reported studies in temperate, semi-arid and mediterranean climates. The largest milk decline was determined as 0.181 kg in mild, 0.267 kg in moderate, and 0.523 kg in extreme heat stress conditions, respectively, when using the conventional $ TI_{1} $. Thresholds determined in the current study can be used for annual forecasting and targeted heat stress mitigation efforts. de Cruz, Clement Roy (orcid)0000-0002-5645-1084 aut Mohd Nor, Norhariani (orcid)0000-0001-8577-0634 aut Jamli, Saadiah (orcid)0000-0001-6345-151X aut Goh, Yong Meng (orcid)0000-0003-1237-2170 aut Enthalten in Theoretical and applied climatology Wien [u.a.] : Springer, 1948 154(2023), 1-2 vom: 13. Juli, Seite 235-244 (DE-627)25490968X (DE-600)1463177-5 1434-4483 nnns volume:154 year:2023 number:1-2 day:13 month:07 pages:235-244 https://dx.doi.org/10.1007/s00704-023-04549-3 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_267 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 154 2023 1-2 13 07 235-244 |
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10.1007/s00704-023-04549-3 doi (DE-627)SPR053323807 (SPR)s00704-023-04549-3-e DE-627 ger DE-627 rakwb eng Michael, Predith verfasserin (orcid)0000-0001-9866-2245 aut Evaluation of heat stress threshold and impacts on milk yield in dairy cattle crossbreds in a hot and humid climate 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Author(s), under exclusive licence to Springer-Verlag GmbH Austria, part of Springer Nature 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. Abstract Heat stress is a major challenge in dairy cattle farming and leads to economic losses. This study aims to determine the impact of heat stress on dairy cattle under a hot and humid climate. Milk yield test records between 2015 to 2019 were collected from 532 first lactating Friesian crossbred cows. Hourly values of temperature (dry bulb), relative humidity, surface wind speed, and solar radiation over 24 h collected from the national weather station in Malaysia were averaged and computed into four temperature indexes (TI). The heat stress threshold was identified using a two-slope broken line regression and the magnitude of milk loss was determined by the degree of decline fitted to a Legendre polynomial regression. Environmental parameters and TI values were observed to be influenced by the dry and monsoon season. Thresholds reported ranged between 73 ($ TI_{4} $) to 79 ($ TI_{3} $) according to the respective TI measured. The index values were higher than the reported studies in temperate, semi-arid and mediterranean climates. The largest milk decline was determined as 0.181 kg in mild, 0.267 kg in moderate, and 0.523 kg in extreme heat stress conditions, respectively, when using the conventional $ TI_{1} $. Thresholds determined in the current study can be used for annual forecasting and targeted heat stress mitigation efforts. de Cruz, Clement Roy (orcid)0000-0002-5645-1084 aut Mohd Nor, Norhariani (orcid)0000-0001-8577-0634 aut Jamli, Saadiah (orcid)0000-0001-6345-151X aut Goh, Yong Meng (orcid)0000-0003-1237-2170 aut Enthalten in Theoretical and applied climatology Wien [u.a.] : Springer, 1948 154(2023), 1-2 vom: 13. Juli, Seite 235-244 (DE-627)25490968X (DE-600)1463177-5 1434-4483 nnns volume:154 year:2023 number:1-2 day:13 month:07 pages:235-244 https://dx.doi.org/10.1007/s00704-023-04549-3 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_267 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 154 2023 1-2 13 07 235-244 |
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10.1007/s00704-023-04549-3 doi (DE-627)SPR053323807 (SPR)s00704-023-04549-3-e DE-627 ger DE-627 rakwb eng Michael, Predith verfasserin (orcid)0000-0001-9866-2245 aut Evaluation of heat stress threshold and impacts on milk yield in dairy cattle crossbreds in a hot and humid climate 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Author(s), under exclusive licence to Springer-Verlag GmbH Austria, part of Springer Nature 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. Abstract Heat stress is a major challenge in dairy cattle farming and leads to economic losses. This study aims to determine the impact of heat stress on dairy cattle under a hot and humid climate. Milk yield test records between 2015 to 2019 were collected from 532 first lactating Friesian crossbred cows. Hourly values of temperature (dry bulb), relative humidity, surface wind speed, and solar radiation over 24 h collected from the national weather station in Malaysia were averaged and computed into four temperature indexes (TI). The heat stress threshold was identified using a two-slope broken line regression and the magnitude of milk loss was determined by the degree of decline fitted to a Legendre polynomial regression. Environmental parameters and TI values were observed to be influenced by the dry and monsoon season. Thresholds reported ranged between 73 ($ TI_{4} $) to 79 ($ TI_{3} $) according to the respective TI measured. The index values were higher than the reported studies in temperate, semi-arid and mediterranean climates. The largest milk decline was determined as 0.181 kg in mild, 0.267 kg in moderate, and 0.523 kg in extreme heat stress conditions, respectively, when using the conventional $ TI_{1} $. Thresholds determined in the current study can be used for annual forecasting and targeted heat stress mitigation efforts. de Cruz, Clement Roy (orcid)0000-0002-5645-1084 aut Mohd Nor, Norhariani (orcid)0000-0001-8577-0634 aut Jamli, Saadiah (orcid)0000-0001-6345-151X aut Goh, Yong Meng (orcid)0000-0003-1237-2170 aut Enthalten in Theoretical and applied climatology Wien [u.a.] : Springer, 1948 154(2023), 1-2 vom: 13. Juli, Seite 235-244 (DE-627)25490968X (DE-600)1463177-5 1434-4483 nnns volume:154 year:2023 number:1-2 day:13 month:07 pages:235-244 https://dx.doi.org/10.1007/s00704-023-04549-3 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_267 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 154 2023 1-2 13 07 235-244 |
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Michael, Predith @@aut@@ de Cruz, Clement Roy @@aut@@ Mohd Nor, Norhariani @@aut@@ Jamli, Saadiah @@aut@@ Goh, Yong Meng @@aut@@ |
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evaluation of heat stress threshold and impacts on milk yield in dairy cattle crossbreds in a hot and humid climate |
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Evaluation of heat stress threshold and impacts on milk yield in dairy cattle crossbreds in a hot and humid climate |
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Abstract Heat stress is a major challenge in dairy cattle farming and leads to economic losses. This study aims to determine the impact of heat stress on dairy cattle under a hot and humid climate. Milk yield test records between 2015 to 2019 were collected from 532 first lactating Friesian crossbred cows. Hourly values of temperature (dry bulb), relative humidity, surface wind speed, and solar radiation over 24 h collected from the national weather station in Malaysia were averaged and computed into four temperature indexes (TI). The heat stress threshold was identified using a two-slope broken line regression and the magnitude of milk loss was determined by the degree of decline fitted to a Legendre polynomial regression. Environmental parameters and TI values were observed to be influenced by the dry and monsoon season. Thresholds reported ranged between 73 ($ TI_{4} $) to 79 ($ TI_{3} $) according to the respective TI measured. The index values were higher than the reported studies in temperate, semi-arid and mediterranean climates. The largest milk decline was determined as 0.181 kg in mild, 0.267 kg in moderate, and 0.523 kg in extreme heat stress conditions, respectively, when using the conventional $ TI_{1} $. Thresholds determined in the current study can be used for annual forecasting and targeted heat stress mitigation efforts. © The Author(s), under exclusive licence to Springer-Verlag GmbH Austria, part of Springer Nature 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. |
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Abstract Heat stress is a major challenge in dairy cattle farming and leads to economic losses. This study aims to determine the impact of heat stress on dairy cattle under a hot and humid climate. Milk yield test records between 2015 to 2019 were collected from 532 first lactating Friesian crossbred cows. Hourly values of temperature (dry bulb), relative humidity, surface wind speed, and solar radiation over 24 h collected from the national weather station in Malaysia were averaged and computed into four temperature indexes (TI). The heat stress threshold was identified using a two-slope broken line regression and the magnitude of milk loss was determined by the degree of decline fitted to a Legendre polynomial regression. Environmental parameters and TI values were observed to be influenced by the dry and monsoon season. Thresholds reported ranged between 73 ($ TI_{4} $) to 79 ($ TI_{3} $) according to the respective TI measured. The index values were higher than the reported studies in temperate, semi-arid and mediterranean climates. The largest milk decline was determined as 0.181 kg in mild, 0.267 kg in moderate, and 0.523 kg in extreme heat stress conditions, respectively, when using the conventional $ TI_{1} $. Thresholds determined in the current study can be used for annual forecasting and targeted heat stress mitigation efforts. © The Author(s), under exclusive licence to Springer-Verlag GmbH Austria, part of Springer Nature 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. |
| abstract_unstemmed |
Abstract Heat stress is a major challenge in dairy cattle farming and leads to economic losses. This study aims to determine the impact of heat stress on dairy cattle under a hot and humid climate. Milk yield test records between 2015 to 2019 were collected from 532 first lactating Friesian crossbred cows. Hourly values of temperature (dry bulb), relative humidity, surface wind speed, and solar radiation over 24 h collected from the national weather station in Malaysia were averaged and computed into four temperature indexes (TI). The heat stress threshold was identified using a two-slope broken line regression and the magnitude of milk loss was determined by the degree of decline fitted to a Legendre polynomial regression. Environmental parameters and TI values were observed to be influenced by the dry and monsoon season. Thresholds reported ranged between 73 ($ TI_{4} $) to 79 ($ TI_{3} $) according to the respective TI measured. The index values were higher than the reported studies in temperate, semi-arid and mediterranean climates. The largest milk decline was determined as 0.181 kg in mild, 0.267 kg in moderate, and 0.523 kg in extreme heat stress conditions, respectively, when using the conventional $ TI_{1} $. Thresholds determined in the current study can be used for annual forecasting and targeted heat stress mitigation efforts. © The Author(s), under exclusive licence to Springer-Verlag GmbH Austria, part of Springer Nature 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law. |
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Evaluation of heat stress threshold and impacts on milk yield in dairy cattle crossbreds in a hot and humid climate |
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de Cruz, Clement Roy Mohd Nor, Norhariani Jamli, Saadiah Goh, Yong Meng |
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2024-07-03T18:41:21.467Z |
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| score |
7.399761 |