Changes in the pattern of heat waves and the impacts on Holstein cows in a subtropical region

Manica, Emanuel; Coltri, Priscila Pereira; Pacheco, Verônica Madeira; Martello, Luciane Silva

doi:10.1007/s00484-022-02374-3

Cited by 10 publications

(9 citation statements)

References 38 publications

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“…As reported by Yameogo et al (2021), RT can be used as an indicator to determine the heat stress start in cows which is generated by the microenvironment and nutrition. It is clear to note that, the performance of most livestock species reduced is associated with an increase in the RT by 1°C or less (Manica et al, 2022). Buckin and Bary (1998) observed a decrease of 0.4° C in the RT of cows treated to water sprinkling when compared with the control group.…”

Section: Thermoregulatory Parametersmentioning

confidence: 99%

Relief of The Impact of Heat Stress on Friesian and Cross-Bred Friesian Dairy Cows by Water Showering under Egyptian Hot Humid Summer Conditions in Nile Delta

Shaarawy,

Wafa,

Mehany

et al. 2024

Journal of Animal and Poultry Production

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The present study aimed to evaluate the response of lactating purebred Friesian cows and crossbred Friesian with Baladi cows during hot-humid Egyptian summer conditions to showering. The experimental work was carried out during June -August. Ten Friesian and ten crossbred Friesian × Baladi dairy cows were used and assigned randomly into four treatment groups: two control groups of cows had access only to shade (Friesian cows and crossbred Friesian cows; S), and two groups were provided showers (Friesian cows and crossbred Friesian cows; S + S). The maximum THI throughout the experimental work was 80.43 to 85.22. Showered cows were taken to a holding pen daily to be cooled. Concentrations of TSH, T3, T4, IGF-1, glucose, cholesterol, triglyceride, total protein, albumin, ALP, Na, K, and milk production were significantly (P<0.01) increased, while, serum cortisol, prolactin, creatinine, AST, ALT and thermoregulatory traits (rectal temperature; RT, respiration and pulse rate (RR; PR), and skin temperature; ST were significantly decreased (P<0.01) in showering than shaded only Friesian and crossbred Friesian cows. Despite crossbred Friesian-Baladi dairy cows displaying more tolerance for heat through attained better parameters for thermoregulatory, endocrinal, and biochemistry and milk production, the amount of improvement of purebred Friesian dairy cows by showering enables cows to express some of their genetic potentials which impeded by the heat stress. Thus, showering can be used to lessen the impact of hot-humid Egyptian summer conditions in the Nile Delta on heat-sensitive exotic purebred dairy cows.

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Section: Thermoregulatory Parametersmentioning

confidence: 99%

Relief of The Impact of Heat Stress on Friesian and Cross-Bred Friesian Dairy Cows by Water Showering under Egyptian Hot Humid Summer Conditions in Nile Delta

Shaarawy,

Wafa,

Mehany

et al. 2024

Journal of Animal and Poultry Production

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“…Respiration and heart rate regulation are techniques used by livestock bodies to decrease or release heat received externally. They can be used to determine how dairy cows react to changes in external temperature and humidity [24]. Rectal temperature (body temperature) in dairy cows typically ranges from 38.2°C to 39.10°C.…”

Section: Heat Stress Indicators In Dairy Cattlementioning

confidence: 99%

“…It can be used to evaluate the challenges that the thermal environment may have on the impact of dairy cow growth, lactation, and reproduction. Most livestock species have lower performance with an increase in rectal temperature of 1°C or less, making body temperature a sensitive marker of physiological response to heat stress in cattle [24]. Because lactating dairy cows are more thermolabile than non-lactating cows.…”

Section: Heat Stress Indicators In Dairy Cattlementioning

confidence: 99%

A review of dairy cattle heat stress mitigation in Indonesia

Asmarasari

Azizah

Sutikno³

et al. 2023

Vet World

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Indonesia is a tropical country with a hot climate. In tropical nations such as Indonesia, heat stress is a key reason for the reduced productivity of dairy cattle. Heat stress is a combination of internal and external stimuli that affects an animal, raises its body temperature, and causes it to react physiologically. Most Indonesian dairy cattle are Friesian Holstein (FH), imported from European nations with a temperate environment with low temperatures in the range of 5°C–25°C. Indonesia has a tropical climate with a high ambient temperature that can reach 34°C during the day and the local relative humidity varies between 70% and 90%. Temperature and humidity are two microenvironment factors that may impact the production and heat release in FH cattle. More than 98% of the entire dairy cattle population in Indonesia is found on Java Island. On Java Island, there are between 534.22 and 543.55 thousand heads of cattle, while the dairy cattle population outside Java Island is just 6.59 thousand heads of cattle. The milk output climbs by an average of 3.34% per year, or approximately 909.64 thousand tons and the average annual growth in whole milk consumption was 0.19 L/capita. Indonesian cow milk output has been unable to keep pace with the country’s increasing demand. This study aimed to review the strategies to mitigate heat stress in FH dairy cattle in Indonesia. Keywords: dairy cattle, heat stress, Indonesia, tropical country.

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“…A regulação da respiração e da frequência cardíaca são técnicas utilizadas pelos bovinos para diminuir ou liberar o calor recebido externamente e, deste modo, as frequências cardíaca e respiratória podem ser usadas para determinar como esses animais reagem às mudanças na temperatura e umidade externas (Manica et al, 2022). Em vacas leiteiras, as estratégias fisiológicas de enfrentamento ao estresse térmico por calor incluem aumento da frequência respiratória, respiração ofegante e sudorese, redução da produção de leite e desempenho reprodutivo (West, 2003).…”

Section: Avaliação De Parâmetros Fisiológicos E De Desempenho Animalunclassified

Bezerros leiteiros: Bem-estar e ambiência nas instalações de abrigo

Maria Vitória Bazzo dos Santos,

Melo,

Melo

et al. 2023

VIECIT

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O bem-estar dos bezerros é uma questão central na produção de bovinos leiteiros, com implicações tanto para a saúde dos animais quanto para a futura eficiência da produção de leite. Este artigo de revisão de literatura examina a pesquisa recente relacionada ao bem-estar de bezerros e à influência da ambiência das instalações em que são abrigados, além das técnicas de avaliação que podem ser usadas. Inicialmente, foi realizada a abordagem das principais preocupações em relação ao bem-estar dos bezerros, incluindo aspectos como alimentação, conforto, saúde e comportamento. A segunda parte deste artigo se concentra na influência da ambiência das instalações nas condições de vida dos bezerros. Discutiu-se a importância da ventilação, temperatura, umidade e qualidade do ar nas instalações, bem como os impactos desses fatores no bem-estar e na saúde dos bezerros. Por fim, este artigo destacou a pesquisa existente tão como áreas promissoras para futuras investigações, visando aprimorar o bem-estar de bezerros e a ambiência das instalações de abrigo.

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Changes in the pattern of heat waves and the impacts on Holstein cows in a subtropical region

Cited by 10 publications

References 38 publications

Relief of The Impact of Heat Stress on Friesian and Cross-Bred Friesian Dairy Cows by Water Showering under Egyptian Hot Humid Summer Conditions in Nile Delta

Relief of The Impact of Heat Stress on Friesian and Cross-Bred Friesian Dairy Cows by Water Showering under Egyptian Hot Humid Summer Conditions in Nile Delta

A review of dairy cattle heat stress mitigation in Indonesia

Bezerros leiteiros: Bem-estar e ambiência nas instalações de abrigo

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