Invited review: Improving feed efficiency of beef cattle - the current state of the art and future challenges

Animal : an International Journal of Animal Bioscience
D A KennyM McGee

Abstract

Improvements in feed efficiency of beef cattle have the potential to increase producer profitability and simultaneously lower the environmental footprint of beef production. Although there are many different approaches to measuring feed efficiency, residual feed intake (RFI) has increasingly become the measure of choice. Defined as the difference between an animal's actual and predicted feed intake (based on weight and growth), RFI is conceptually independent of growth and body size. In addition, other measurable traits related to energy expenditure such as estimates of body composition can be included in the calculation of RFI to also force independence from these traits. Feed efficiency is a multifactorial and complex trait in beef cattle and inter-animal variation stems from the interaction of many biological processes influenced, in turn, by physiological status and management regimen. Thus, the purpose of this review was to summarise and interpret current published knowledge and provide insight into research areas worthy of further investigation. Indeed, where sufficient suitable reports exist, meta-analyses were conducted in order to mitigate ambiguity between studies in particular. We have identified a paucity of informa...Continue Reading

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Citations

Jun 15, 2019·Animal : an International Journal of Animal Bioscience·A De La TorreP Nozière
Jan 24, 2019·Korean journal of anesthesiology·Marta Ines Berrio Valencia, Abigayel Joschko
Aug 25, 2018·Animal : an International Journal of Animal Bioscience·G Cantalapiedra-HijarI Ortigues-Marty
Feb 7, 2020·Animal : an International Journal of Animal Bioscience·K A BeaucheminM Wang
Mar 17, 2020·Animal : an International Journal of Animal Bioscience·C McKennaD A Kenny
Oct 24, 2019·Animal : an International Journal of Animal Bioscience·F TortereauD François
Jun 4, 2020·PloS One·Danielly Fernanda BrolezeMaria Eugênia Zerlotti Mercadante
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Jul 7, 2020·Animal : an International Journal of Animal Bioscience·T Soleimani, H Gilbert
Aug 3, 2019·Physiological Genomics·Miri Cohen-ZinderAriel Shabtay
May 10, 2019·Tropical Animal Health and Production·Luana Lelis SouzaMaria Eugênia Zerlotti Mercadante
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Jul 16, 2021·Journal of Animal Science and Biotechnology·Déborah Romaskevis Gomes LopesHilário Cuquetto Mantovani
Aug 28, 2021·Animals : an Open Access Journal From MDPI·Silvia GrossiCarlo Angelo Sgoifo Rossi
Oct 12, 2021·Animal : an International Journal of Animal Bioscience·G PulinaS P G Rassu
Oct 15, 2021·PloS One·Leandro Sannomiya SakamotoMaria Eugênia Zerlotti Mercadante

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