University of Florida, Department of Animal Sciences

Mateescu's Animal Genetics and Genomics Lab

Beef Cattle Thermotolerance

Climatic stress is a major limiting factor of production efficiency in beef cattle in tropical and subtropical environments and in dairy cattle throughout most of the world. This stress is expected to increase due to climate change. More than half of the cattle in the world are maintained in hot and humid environments, including about 40% of beef cows in the US. Substantial differences in thermal tolerance exist among breeds and among animals within breeds indicative of opportunities for selective improvement. For example, Bos indicus cattle exhibit increased resistance to many environmental stressors relative to Bos taurus, but tend to have slower growth, lower fertility and poor meat quality as they have not been as intensively selected for these traits as specialized Bos taurus breeds.

 

Use of genomic tools to produce an animal with superior ability for both thermal adaptation and food production represents an energy-efficient sustainable approach to meet the challenge of global climate change.

Article published in the Journal of Animal Science, July 2019

Sarlo Davila K.M., H. Hamblen, P.J. Hansen, S. Dikmen, P.A. Oltenacu and R.G. Mateescu.

Genetic parameters for hair characteristics and core body temperature in a multibreed Brahman-Angus herd.

J. Anim. Sci. 97:3246–3252.

doi: 10.1093/jas/skz188

Article published in the Journal of Animal Science

Heather Hamblen first author.

J. Anim. Sci. 2018. 96:3131-3137

Article published in the Journal of Animal Science

Serdal Dikmen first author.

J. Anim. Sci. 2018.96:2175–2183

Interview with the romanian magazine "The farm" - December 2017 (in romanian)

Article published in the UF ANS Beef Research Report, 2017

Hamblen H., A. Zolini, M. Gobena, P.J. Hansen and R.G. Mateescu.

EDIS, UF/IFAS.

Article published in the 2017 Fall edition of the "FRONTLINE Beef Producer"

(pages 20 - 27)  https://gobrangus.com/brangus-publications/

or available here as text or here as pdf

Article based on an interview with the "Quo" - September 2017 (in spanish)

Article published in the Florida Cattlemen Journal, October 2017

Heather Hamblen and Raluca Mateescu

Department of Animal Sciences, University of Florida

Profile published in the North America Analysis August 2017 edition - publication focusing on a number of key areas within the US and Canada such as healthcare, the environment, and science. You can follow the link to the publication (page 36-37) or download a pdf copy here.

UF Scientists Work to Develop Heat-Resistant 'Cow of the Future'

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Story published by IFAS News and then picked up by many media outlets including Feedstuffs and Drovers. Additional interviews with Digital Trends and BBC 5 live.

USDA-NIFA grant - Use of genomic tools to produce an animal with superior ability for both thermal adaptation and food production represents an energy-efficient sustainable approach to meet the challenge of global climate change.

Article published in the Florida Cattlemen Journal, February 2017

Raluca Mateescu, Peter Hansen, Serdal Dikmen*

Department of Animal Sciences, University of Florida and *Department of Animal Science, Uludag University

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