Morphology, membrane integrity, and mitochondrial function in sperm of crossbred beef bulls selected for residual feed intake

2019 ◽  
Vol 99 (3) ◽  
pp. 456-464
Author(s):  
T.C. Bruinjé ◽  
P. Ponce-Barajas ◽  
A. Dourey ◽  
M.G. Colazo ◽  
T. Caldwell ◽  
...  
Keyword(s):  
Mitochondrial Function ◽  
Feed Intake ◽  
Membrane Integrity ◽  
Residual Feed Intake ◽  
Beef Bulls

Genetic parameters and breed differences for feed efficiency, growth, and body composition traits of young beef bulls

2004 ◽  
Vol 84 (2) ◽  
pp. 177-185 ◽  
Author(s):  
F. S. Schenkel ◽  
S. P. Miller ◽  
J. W. Wilton
Keyword(s):  
Body Composition ◽  
Genetic Correlation ◽  
Feed Intake ◽  
Feed Efficiency ◽  
Fixed Effects ◽  
Residual Feed Intake ◽  
Backfat Thickness ◽  
Daily Weight Gain ◽  
Feed Conversion ◽  
Beef Bulls

Genetic associations between feed efficiency, growth, and live ultrasound measured body composition traits were studied in purebred beef bulls of six breeds in Ontario bull test stations from 1991 to 2000. Feed traits included average daily feed intake (FI), feed conversion ratio (FCR), and residual feed intake [feed intake adjusted for production alone (RFIp) or production and backfat thickness (RFIb)]. Growth traits were average daily weight gain (ADG), mid-test metabolic weight (MW), hip height (HH), and scrotal circumference (SC). Body composition traits included ultrasound backfat thickness (BF), longissimus muscle area (LMA), and predicted percentage of intramuscular fat (IFAT). Bulls were measured every 28 d for weight and individual feed intake, and at the end of test for ultrasound body composition traits. Number of records per trait ranged from 2284 (FI) to 13 319 (ADG). Fixed effects of test group, breed and end of test age (within breed), and random effects of animal and herd of origin were modeled using REML bivariate analyses for all traits. Heritability estimates were moderate for all traits (0.30 to 0.55), except for IFAT (0.14). The genetic correlation between RFIp and RFIb was high (0.99) within breeds, but breeds ranked differently with respect to RFIp and RFIb. Genetic correlations of RFIb with ADG and backfat thickness were essentially zero, which indicate that selection on residual feed intake could be implemented to reduce feed intake and improve feed conversion without compromising growth or changing levels of subcutaneous fat. Key words: Central test, genetic correlation, heritability, residual feed intake

scholarly journals Hepatic mitochondrial function in Hereford steers with divergent residual feed intake phenotypes1

2018 ◽  
Vol 96 (10) ◽  
pp. 4431-4443 ◽  
Author(s):  
Alberto Casal ◽  
Mercedes Garcia-Roche ◽  
Elly Ana Navajas ◽  
Adriana Cassina ◽  
Mariana Carriquiry
Keyword(s):  
Mitochondrial Function ◽  
Feed Intake ◽  
Residual Feed Intake

On the determination of residual feed intake and associations of infrared thermography with efficiency and ultrasound traits in beef bulls

2009 ◽  
Vol 125 (1) ◽  
pp. 22-30 ◽  
Author(s):  
Y.R. Montanholi ◽  
K.C. Swanson ◽  
F.S. Schenkel ◽  
B.W. McBride ◽  
T.R. Caldwell ◽  
...  
Keyword(s):  
Infrared Thermography ◽  
Feed Intake ◽  
Residual Feed Intake ◽  
Beef Bulls

Relationship between body measurements, metabolic hormones, metabolites and residual feed intake in performancetested pedigree beef bulls

2011 ◽  
Vol 135 (1) ◽  
pp. 8-16 ◽  
Author(s):  
A.K. Kelly ◽  
M. McGee ◽  
D.H. Crews ◽  
C.O. Lynch ◽  
A.R. Wylie ◽  
...  
Keyword(s):  
Feed Intake ◽  
Residual Feed Intake ◽  
Body Measurements ◽  
Metabolic Hormones ◽  
Beef Bulls

Relationship between residual feed intake and radiated heat loss using infrared thermography in young beef bulls

2018 ◽  
Vol 78 ◽  
pp. 304-311
Author(s):  
S. Thompson ◽  
A.L. Schaefer ◽  
G.H. Crow ◽  
J. Basarab ◽  
J. Colyn ◽  
...  
Keyword(s):  
Heat Loss ◽  
Infrared Thermography ◽  
Feed Intake ◽  
Residual Feed Intake ◽  
Beef Bulls

Expression of genes related to mitochondrial function in Nellore cattle divergently ranked on residual feed intake

2015 ◽  
Vol 42 (2) ◽  
pp. 559-565 ◽  
Author(s):  
Larissa Fernanda Simielli Fonseca ◽  
Daniele Fernanda Jovino Gimenez ◽  
Maria Eugênia Zerlotti Mercadante ◽  
Sarah Figueiredo Martins Bonilha ◽  
Jesus Aparecido Ferro ◽  
...  
Keyword(s):  
Mitochondrial Function ◽  
Feed Intake ◽  
Residual Feed Intake ◽  
Expression Of Genes ◽  
Nellore Cattle

The relationship between mitochondrial function and residual feed intake in Angus steers1

2006 ◽  
Vol 84 (4) ◽  
pp. 861-865 ◽  
Author(s):  
W. H. Kolath ◽  
M. S. Kerley ◽  
J. W. Golden ◽  
D. H. Keisler
Keyword(s):  
Mitochondrial Function ◽  
Feed Intake ◽  
Residual Feed Intake ◽  
The Relationship

157 Accounting for backfat thickness on the prediction of residual feed intake of young beef bulls influences its relationship to breeding soundness examination traits

2017 ◽  
Vol 95 (suppl_4) ◽  
pp. 77-77
Author(s):  
J. Antillon-Ruiz ◽  
J. J. Molina-Cardenas ◽  
F. A. Rodríguez-Almeida ◽  
M. E. Burrola-Barraza
Keyword(s):  
Feed Intake ◽  
Residual Feed Intake ◽  
Backfat Thickness ◽  
Beef Bulls ◽  
Breeding Soundness

Relationships between residual feed intake and hepatic mitochondrial function in growing beef cattle1

2014 ◽  
Vol 92 (7) ◽  
pp. 3134-3141 ◽  
Author(s):  
P. A. Lancaster ◽  
G. E. Carstens ◽  
J. J. Michal ◽  
K. M. Brennan ◽  
K. A. Johnson ◽  
...  
Keyword(s):  
Mitochondrial Function ◽  
Feed Intake ◽  
Residual Feed Intake
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