Results 1 to 10 of about 224,181 (271)

Review: Role of early life nutrition in regulating sexual development in bulls

open access: yesAnimal, 2023
The availability of high-quality semen from genetically elite bulls is essential to support continued genetic gain and the sustainability of cattle production worldwide.
C.J. Byrne, K. Keogh, D.A. Kenny
doaj   +1 more source

Animal welfare index: an animal welfare evaluation of beef production farms in Ireland

open access: yesJournal of Applied Animal Research, 2022
The study objective was to examine the animal welfare status of Irish beef production farms using an animal welfare index (AWI). Beef production farms (n = 105) including suckler calf-to-beef (n = 30), suckler calf/weaning/finishing (n = 63), dairy calf ...
Peter Lawrence   +2 more
doaj   +1 more source

Effect of Post-Grazing Sward Height, Sire Genotype and Indoor Finishing Diet on Steer Intake, Growth and Production in Grass-Based Suckler Weanling-to-Beef Systems

open access: yesAnimals, 2021
This study evaluated the effects of post-grazing sward height (PGSH, 4 or 6 cm) on herbage production, its nutritive value, dry matter (DM) intake, grazing behaviour and growth of early- (EM) and late-maturing (LM) breed suckler steers (n = 72), and the ...
Peter R. Doyle   +4 more
doaj   +1 more source

Intake, Growth and Carcass Traits of Steers Offered Grass Silage and Concentrates Based on Contrasting Cereal Grain Types Supplemented with Field Beans, Peas or Maize By-Products

open access: yesAnimals, 2023
The study objective was to determine intake and performance of beef cattle individually offered perennial ryegrass-dominant grass silage ad libitum supplemented with 4 kg dry matter daily of, rolled barley or maize meal-based concentrate rations ...
Rian Kennedy   +4 more
doaj   +1 more source

Enhancing early life nutrition alters the hepatic transcriptome of Angus × Holstein-Friesian heifer calves

open access: yesAnimal, 2022
Early life nutrition has a major influence on subsequent lifetime performance in cattle. The aim of this experiment was to investigate the effect of plane of nutrition from 3 to 21 weeks of age on the liver transcriptome. Holstein-Friesian × Angus heifer
C.J. Byrne   +3 more
doaj   +1 more source

Expected and unexpected products of reactions of 2-hydrazinylbenzothiazole with 3-nitrobenzenesulfonyl chloride in different solvents [PDF]

open access: yes, 2018
Acknowledgements We thank the EPSRC National Crystallography Service (University of Southampton) for the X-ray data collections.
de Souza, Marcus V. N.   +3 more
core   +8 more sources

Genome-wide association study of economically important traits in Charolais and Limousin beef cows

open access: yesAnimal, 2021
Genomic selection has proven effective for advancing genetic gain for key profit traits in dairy cattle production systems. However, its impact to-date on genetic improvement programs for beef cattle has been less effective.
K. Keogh   +4 more
doaj   +1 more source

Mitochondrial abundance and function in skeletal muscle and liver from Simmental beef cattle divergent for residual feed intake

open access: yesAnimal, 2020
Cellular mitochondrial function has been suggested to contribute to variation in feed efficiency (FE) among animals. The objective of this study was to determine mitochondrial abundance and activities of various mitochondrial respiratory chain complexes (
C. McKenna   +5 more
doaj   +1 more source

DivIVA Controls Progeny Morphology and Diverse ParA Proteins Regulate Cell Division or Gliding Motility in Bdellovibrio bacteriovorus

open access: yesFrontiers in Microbiology, 2020
The predatory bacterium B. bacteriovorus grows and divides inside the periplasm of Gram-negative bacteria, forming a structure known as a bdelloplast.
David S. Milner   +6 more
doaj   +1 more source

Fracture of complex metallic alloys: An atomistic study of model systems [PDF]

open access: yes, 2006
Molecular dynamics simulations of crack propagation are performed for two extreme cases of complex metallic alloys (CMAs): In a model quasicrystal the structure is determined by clusters of atoms, whereas the model C15 Laves phase is a simple periodic ...
Abraham FF   +16 more
core   +4 more sources

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