Effect of phenotypic residual feed intake and dietary forage content on the rumen microbial community of beef cattle

CA Carberry, DA Kenny, S Han… - Applied and …, 2012 - Am Soc Microbiol
Feed-efficient animals have lower production costs and reduced environmental impact.
Given that rumen microbial fermentation plays a pivotal role in host nutrition, the premise …

Effect of divergence in residual feed intake on feeding behavior, blood metabolic variables, and body composition traits in growing beef heifers

AK Kelly, M McGee, DH Crews Jr… - Journal of animal …, 2010 - academic.oup.com
This study examined the relationship of feed efficiency and performance with feeding
behavior, blood metabolic variables, and various body composition measurements in …

Molecular physiology of feed efficiency in beef cattle

C Fitzsimons, M McGee, K Keogh… - Biology of domestic …, 2017 - taylorfrancis.com
This chapter reviews the molecular physiology of feed efficiency in beef cattle and highlights
significant variation across a variety of metabolic organs and constituent biochemical …

Joint Alpharma-Beef Species Symposium: interactions of feed efficiency with beef heifer reproductive development

RD Randel, TH Welsh Jr - Journal of Animal Science, 2013 - academic.oup.com
The influence of nutrition on puberty in beef heifers is complex and under neuroendocrine
control. The stores of body fat in mammals are a determinant of the onset and maintenance …

Repeatability of feed efficiency, carcass ultrasound, feeding behavior, and blood metabolic variables in finishing heifers divergently selected for residual feed intake

AK Kelly, M McGee, DH Crews Jr… - Journal of animal …, 2010 - academic.oup.com
This study examined the relationship between feed efficiency and performance, and feeding
behavior, blood metabolic variables, and various ultrasonic measurements in finishing beef …

Association of residual feed intake with growth and slaughtering performance, blood metabolism, and body composition in growing lambs

X Zhang, W Wang, F Mo, Y La, C Li, F Li - Scientific reports, 2017 - nature.com
The aim of this study was to determine the association of residual feed intake (RFI) with
growth performance, blood metabolic parameters, and body composition factors in growing …

Use of residual feed intake in Holsteins during early lactation shows potential to improve feed efficiency through genetic selection

EE Connor, JL Hutchison, HD Norman… - Journal of animal …, 2013 - academic.oup.com
Improved feed efficiency is a primary goal in dairy production to reduce feed costs and
negative impacts of production on the environment. Estimates for efficiency of feed …

Muscle characteristics and meat quality traits are affected by divergent selection on residual feed intake in pigs

L Lefaucheur, B Lebret, P Ecolan… - Journal of animal …, 2011 - academic.oup.com
Residual feed intake (RFI) is defined as the difference between the observed feed intake
and that expected based on requirements for maintenance and production. A divergent …

Grass silage intake, rumen and blood variables, ultrasonic and body measurements, feeding behavior, and activity in pregnant beef heifers differing in phenotypic …

P Lawrence, DA Kenny, B Earley… - Journal of animal …, 2011 - academic.oup.com
The objectives of this study were to quantify the phenotypic variation in residual feed intake
(RFI) in pregnant beef heifers offered a grass silage diet and to characterize their …

[HTML][HTML] Feedlot performance, feed efficiency reranking, carcass traits, body composition, energy requirements, meat quality and calpain system activity in Nellore …

RC Gomes, RD Sainz, SL Silva, MC César, MN Bonin… - Livestock Science, 2012 - Elsevier
The aim was to evaluate growth, carcass traits, feed efficiency reranking, body composition,
calpain system activity and meat quality in Nellore steers that were phenotypically ranked for …