Season effects on the composition of milk produced by a Holstein herd managed under semi-confinement followed by compost bedded dairy barn management

Weber, Carol Thaís; Schneider, Catia Letícia Corrêa; Busanello, Marcos; Calgaro, Júlia Laize Bandeira; Fioresi, Júnior; Gehrke, C. R.; Conceição, Jardel Menegazzi da; Haygert-Velho, Ione Maria Pereira

doi:10.5433/1679-0359.2020v41n5p1667

Cited by 6 publications

(2 citation statements)

References 20 publications

(20 reference statements)

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“…In particular, in March, TBC was higher than in any other month. This may be because the winter season in the South Korea is cold enough to crystalize the cows' bedding and litter, thus this may have wounded the nipples of the cows, increasing the number of germs [36]. Mohebbi-Fani et al [37] mentioned that MP and MF are the two major milk compositions affecting milk price.…”

Section: A B Cmentioning

confidence: 99%

Estimating milk production losses by heat stress and its impacts on greenhouse gas emissions in Korean dairy farms

Park¹,

Ataallahi²,

Ham³

et al. 2022

J Anim Sci Technol

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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 CO 2 eq/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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Section: A B Cmentioning

confidence: 99%

Estimating milk production losses by heat stress and its impacts on greenhouse gas emissions in Korean dairy farms

Park¹,

Ataallahi²,

Ham³

et al. 2022

J Anim Sci Technol

View full text Add to dashboard Cite

show abstract

“…3 In particular, in March, TBC was higher than in any other month. This may be because the winter season in the South Korea is cold enough to crystalize the cows' bedding and litter, thus this may have wounded the nipples of the cows, increasing the number of germs [34].…”

Section: A C C E T E Dmentioning

confidence: 99%

Estimating losses in milk production by heat stress and environmental impacts of greenhouse gas emissions in Korean dairy farms

Park¹,

Ataallahi²,

Ham³

et al. 2021

J Anim Sci Technol

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The Effect of Age of Cows on Variability in Mastitis Prevalence Risk and its Concomitant Impacts on the Successive Daily Milk Yield

Gantner,

Jožef,

Popović

et al. 2023

Contemporary Agriculture

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Summary The purpose of this study is to determine the effect of age of cows on variability in mastitis prevalence risk and its concomitant impacts on their successive daily milk yield by analyzing test-day records of dairy cows collected in the period 2005–2022. The results obtained indicate a correlation between the age and breed of cows enrolled in the study and mastitis prevalence risk alongside its concomitant impacts on their successive daily milk yield. The findings demonstrate a progressive increase in mastitis prevalence risk with the advancing age of cows, notably more pronounced in the Holstein breed than in the Simmental breed. The Simmental cows exhibited a lower increase in daily milk yield, experiencing a substantial decrease in overall yields (namely milk, fat, and protein) in contrast to the Holstein cows. The primiparous cows of both breeds displayed the highest total increase in daily milk yield. This study underscores the significance of monitoring dairy herd health as a pivotal component of successful dairy herd management. Moreover, the daily lactose content was found a valuable and cost-effective indicator for ensuring the economically and environmentally sustainable operations of dairy farms.

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Season effects on the composition of milk produced by a Holstein herd managed under semi-confinement followed by compost bedded dairy barn management

Abstract: Somatic cell count and total bacterial count increased under the CBDB system. No differences were found for other milk variables between the two systems. Milk was of a higher quality in winter and spring compared with summer and autumn.

Cited by 6 publications

References 20 publications

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

Estimating losses in milk production by heat stress and environmental impacts of greenhouse gas emissions in Korean dairy farms

The Effect of Age of Cows on Variability in Mastitis Prevalence Risk and its Concomitant Impacts on the Successive Daily Milk Yield

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