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Abstract

Heat stress in dairy cattle is recognized to compromise fertility by altering the functions of ovarian follicle-enclosed cells, e.g., oocyte and granulosa cells (GCs). Catalase is an antioxidant enzyme that plays a significant role in cellular protection against oxidative damage by the degradation...

Author(s)
Khan, A.; Khan, M. Z.; Dou JinHuan; Umer, S.; Xu HuiTao; Sammad, A.; Zhu HuaBin; Wang YaChun
Publisher
MDPI AG, Basel, Switzerland
Citation
Animals, 2020, 10, 6,
Abstract

Producers in the western United States commonly use spray water at the feed bunk and fans in the lying area to mitigate heat stress in dairy cows. Often, spray water cycles on and off with fans turning on when a preset air temperature is reached. Although this method can be effective, innovative...

Author(s)
Drwencke, A. M.; Tresoldi, G.; Stevens, M. M.; Narayanan, V.; Carrazco, A. V.; Mitloehner, F. M.; Pistochini, T. E.; Tucker, C. B.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2020, 103, 6, pp 5440-5454
Abstract

Heat-stressed dairy cows on pasture will compete for resources that aid cooling, but it is not known how heat stress affects the competition for water by indoor-housed cows. The aim of this observational study was to evaluate how heat stress affects the behavior of indoor-housed cows at the drinker ...

Author(s)
McDonald, P. V.; Keyserlingk, M. A. G. von; Weary, D. M.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2020, 103, 4, pp 3447-3458
Abstract

Northeastern China is one of the dominating areas of dairy production. In 2016, a total of 2.375 million dairy cows were kept within Heilongjiang, Liaoning and Jilin Provinces, annually producing over 7.42 million tons fresh milk. Northeastern China is characterized by an extremely cold climate in...

Author(s)
Lu YuJian; Wang ChaoYuan; Zhao HaoXiang; Dong Li; Shi ZhengXiang; Li BaoMing
Publisher
Chinese Society of Agricultural Engineering, Beijing, China
Citation
Transactions of the Chinese Society of Agricultural Engineering, 2018, 34, 16, pp 225-231
Abstract

Heat stress negatively affects cow performance, compromises immune function, and increases susceptibility to metabolic disorders, particularly during the dry period and as cows transition from gestation to lactation. Metabolic adaptations of the liver are critical for successful transition, yet it...

Author(s)
Skibiel, A. L.; Zachut, M.; Amaral, B. C. do; Levin, Y.; Dahl, G. E.
Publisher
Elsevier Inc., Philadelphia, USA
Citation
Journal of Dairy Science, 2018, 101, 1, pp 705-716
Abstract

To reduce heat stress that contributes to complications in milk production and breeding, dairy cows are typically cooled by intermittent water sprays coupled with fan-induced air flow. Industry currently utilises fixed duration on and off-cycles; however, water efficiency may be improved by...

Author(s)
Chen, E.; Narayanan, V.; Pistochini, T.; Rasouli, E.
Publisher
Elsevier Ltd, Oxford, UK
Citation
Biosystems Engineering, 2020, 195, pp 116-135
AbstractFull Text

Heat stress in dairy cows is an increasing problem because of climate change. Even though South Africa has a warm to hot climate, little research on this topic has been done locally. Currently, while intensive housing is increasing being used in large dairy production systems, a shade structure...

Author(s)
Muller, C. J. C.; Botha, J. A.
Publisher
South African Society for Animal Science, Hatfield, South Africa
Citation
Applied Animal Husbandry & Rural Development, 2018, 11, 1, pp 1-4
AbstractFull Text

This experiment was conducted in Iraq at alkhal is Dairy Cattle Station In the Diayla governorate During the months July, August and September for the period from 1/7 to 1/10/2017. The experiment aimed to reducing Effect of heat stress on physiological performance of Holstein dairy cows by adding...

Author(s)
Shwayel, M. A.; Al-Mafraji, R. H. H.
Publisher
Dr R.S. Yadav, Etawah, India
Citation
Plant Archives, 2018, 18, 2, pp 2398-2402
Abstract

The objective of the present research was to describe the physiological and production responses of lactating dairy cows during and after sudden exposure to temperate-climate heat-wave conditions, compared with cows in thermoneutral conditions. Twelve lactating multiparous Holstein-Friesian dairy ...

Author(s)
Garner, J. B.; Douglas, M.; Williams, S. R. O.; Wales, W. J.; Marett, L. C.; DiGiacomo, K.; Leury, B. J.; Hayes, B. J.
Publisher
CSIRO, Collingwood, Australia
Citation
Animal Production Science, 2017, 57, 7, pp 1233-1241
AbstractFull Text

Reduction or removal of heat stress due to the hot and humid environment in dairy cattle is very important to improve productivity and quality of cow milk production. On the other hand, technical action against heat stress requires additional costs such as water and electricity supply. Therefore...

Author(s)
Sugiarto, S.; Sugiono, S.; Andriyani, D. P.
Publisher
University of Brawijaya, Malang, Indonesia
Citation
Journal of Innovation and Applied Technology, 2018, 4, 1, pp 713-722

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