Estimating milk production losses by heat stress and its impacts on greenhouse gas emissions in Korean dairy farms.
Estimating milk production losses by heat stress and its impacts on greenhouse gas emissions in Korean dairy farms.
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热应激对韩国奶牛场牛奶产量损失的估计及其对温室气体排放的影响。
DOI：
10.5187/jast.2022.e134
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发表时间：
2022-07
影响因子：
2.3
通讯作者：
Park, Kyu Hyun
中科院分区：
文献类型：
--
作者：
Park, Geun-woo;Ataallahi, Mohammad;Ham, Seon Yong;Oh, Se Jong;Kim, Ki-Youn;Park, Kyu Hyun
关键词：
气候变化引起的气象灾害，如高温、寒潮和异常长的雨季，都会影响奶牛的产奶量。已经进行了关于产奶量和乳成分如何由于热应激（HS）而变化的研究。然而，韩国奶牛场尚未评估HS造成的牛奶生产损失以及温室气体排放对环境的影响。使用韩国乳制品委员会（KDC）提供的2018年3月至10月的牛奶产量和牛奶成分数据，将区域牛奶产量与温度-湿度指数（THI）进行比较。2018年每日温度和相对湿度的原始数据来自韩国气象局（KMA）。利用该数据计算THI和最高与最低温度变化率之差作为日平均温度范围，以显示温度差距对产奶量的影响程度。牛奶的量是根据KDC的926韩元/kg的价格计算的。结果显示，5月份，在THI范围60-73内，三个地区的平均产奶率最高：Chulwon（北方地区）、Hwasung（中部地区）和Gunwi（南部地区）。与5月相比，北方、中部和南部地区6 ~ 8月平均产奶量分别下降4.96 ± 1.48%、7.12 ± 2.36%和7.94 ± 2.57%，三个地区的THI值均在73以上。根据结果，THI的水平应该保持在5月的水平。如果是这样，农民在北方地区可以赚取9，128，730韩元/农场的利润，在中部地区可以赚取9，967，880韩元/农场的利润，在南部地区可以赚取12，245，300韩元/农场的利润。此外，平均每农场可减少2. 41 ± 0. 35头奶牛，从而平均每天减少29. 61 ± 4. 36千克二氧化碳当量的温室气体排放。总的来说，结论表明，在夏季保持类似于5月的环境条件是必要的。这些知识可以用于基础研究，以说服农民改变农场设施，以增加经济效益和改善动物福利。
Meteorological disasters caused by climate change like heat, cold waves, and unusually long rainy seasons affect the milk productivity of cows. Studies have been conducted on how milk productivity and milk compositions change due to heat stress (HS). However, the estimation of losses in milk production due to HS and hereby environmental impacts of greenhouse gas (GHG) emissions are yet to be evaluated in Korean dairy farms. Dairy milk production and milk compositions data from March to October 2018, provided by the Korea Dairy Committee (KDC), were used to compare regional milk production with the temperature-humidity index (THI). Raw data for the daily temperature and relative humidity in 2018 were obtained from the Korea Meteorological Administration (KMA). This data was used to calculate the THI and the difference between the maximum and minimum temperature changing rate, as the average daily temperature range, to show the extent to which the temperature gap can affect milk productivity. The amount of milk was calculated based on the price of 926 won/kg from KDC. The results showed that the average milk production rate was the highest within the THI range 60–73 in three regions in May: Chulwon (northern region), Hwasung (central region), and Gunwi (southern region). The average milk production decreased by 4.96 ± 1.48% in northern region, 7.12 ± 2.36% in central region, and 7.94 ± 2.57% in southern region from June to August, which had a THI range of 73 or more, when compared to May. Based on the results, the level of THI should be maintained like May. If so, the farmers can earn a profit of 9,128,730 won/farm in northern region, 9,967,880 won/farm in central region, and 12,245,300 won/farm in southern region. Additionally, the average number of cows raised can be reduced by 2.41 ± 0.35 heads/farm, thereby reducing GHG emissions by 29.61 ± 4.36 kg CO2eq/day on average. Overall, the conclusion suggests that maintaining environmental conditions in the summer that are similar to those in May is necessary. This knowledge can be used for basic research to persuade farmers to change farm facilities to increase the economic benefits and improve animal welfare.
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影响因子：
2.2
作者：
Lim DH;Mayakrishnan V;Ki KS;Kim Y;Kim TI
通讯作者：
Kim TI
影响因子：
4.2
作者：
Key, Nigel;Sneeringer, Stacy
通讯作者：
Sneeringer, Stacy
DOI：
10.4025/actascianimsci.v41i1.42568
发表时间：
2019-01-01
期刊：
Acta Scientiarum. Animal Sciences
影响因子：
--
作者：
Botton, Fernanda Scolari;Alessio, Dileta Regina Moro;Haygert-Velho, Ione Maria Pereira
通讯作者：
Haygert-Velho, Ione Maria Pereira
影响因子：
1.4
作者：
Garner, J. B.;Douglas, M.;Hayes, B. J.
通讯作者：
Hayes, B. J.
DOI：
10.14397/jals.2013.47.6.155
发表时间：
2013-01-01
期刊：
Journal of Agriculture & Life Science
影响因子：
--
作者：
Lee, Joon-Hee;Lee, Won-Jae;Gon, Jeon Sang
通讯作者：
Gon, Jeon Sang