Effects of Heat Stress in Dairy Cows Raised in the Confined System: A Scientometric Review

Abstract

Due to climate change, heat stress is a growing problem for the dairy industry. Based on this, annual economic losses in the dairy sector are verified mainly on a large scale. Despite several publications on thermal stress in lactating dairy cows in confinement systems, there need to be published reviews addressing this issue systematically. Our objective was to scientometrically analyze the effects of heat stress in dairy cows managed in a confinement system. Based on PRISMA guidelines, research articles were identified, screened, and summarized based on inclusion criteria for heat stress in a confinement system. Data was obtained from the Web of Science. A total of 604 scientific articles published between 2000 and April 2022 were considered. Data was then analyzed using Microsoft Excel and CiteSpace. The results pointed to a significant increase in studies on heat stress in lactating cows housed in confinement systems. The main research areas were Agriculture, Dairy Animal Science and Veterinary Sciences. The USA showed the highest concentration of studies (31.12%), followed by China (14.90%). Emerging themes included heat stress and behavior. The most influential journals were the Journal of Dairy Science and the Journal of Animal Science. The top authors were L. H. Baumgard and R. J. Collier. The leading institutions were the Chinese Academy of Agricultural Sciences, followed by the State University System of Florida and the University of Florida. The study maps the significant research domains on heat stress of lactating cows in confinement systems, discusses implications and explanations and highlights emerging trends.

Digital and Precision Technologies in Dairy Cattle Farming: A Bibliometric Analysis

“…The effects of publications are strongly associated with the number of times an article from a given journal is cited [ 34 ]. Thus, for this study, the ten most relevant articles were ranked according to the number of citations, as shown in Table 1 .…”

Effects of rumen-protective γ-aminobutyric acid additive on lactation performance and serum biochemistry in heat-stressed cows

“…In summer, cows begin to experience the negative effects of severe heat stress when rectal temperatures exceed 38.9°C ( 22 , 27 ). In addition, cows begin to experience heat stress when THI > 72 ( 27 , 28 ). In our study, the maximum THI averaged 81.84 and the minimum THI averaged 79.48, and the majority of the time cows had rectal temperatures above 38.9°C.…”

Heat Stress in Dairy Cattle

“…The increase in global temperature (by approximately 1.2 °C) decreased by an hour, during which the great horned thinness is lost in thermal comfort zones. The deep core temperature for European lactating cows, which should be thermoneutral, ranges from -0.5 °C to 20 °C6 , that is, the vologicity of the temperature is obvious from 40 % to 60 % 7,8 .…”

“…2019. 4 (1), 01-05 8 Frigeri, Karen Dal' Magro, Kariane Donatti Kachinski, Nédia de Castilhos Ghisi, Matheus Deniz, Flávio Alves Damasceno, Matteo Barbari, Piotr Herbut, and Frederico Márcio Corrêa Vieira. "Effects of Heat Stress in Dairy Cows 9 Visha, P., Das, P. K., Mukherjee, J., Banerjee, D. (2023).…”

“…Heat dissipation in the environment by cattle occurs through a number of physiological mechanisms: conduction, convection, radiation; evaporation 13 . Radiation is the transfer of energy in the form of electromagnetic waves.…”