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Review: A hierarchical research model to foster dialog between grazing ecology and beef cow energetics to support ecological intensification of native grassland.
Animal
November 2024
Centro Universitario de la Región Este, Universidad de la República, Uruguay.
Cow-calf systems grazing native grasslands must transition toward improved economic performance simultaneously with the conservation and improvement of ecosystem services they provide. We present an innovation model with this objective based on a hierarchical model that links functional relationships between state variables, grazing experiments and its validation, and co-innovation at the farm level. This paper describes the hypotheses, designs, and results of the studies, and the role of grazing ecology and herbivore nutrition to support the process of ecological intensification of livestock systems on native grasslands.
View Article and Find Full Text PDFControl Mechanisms of Sensorimotor System on Manipulation of Proprioceptive Inputs During Balance Maintenance.
J Mot Behav
January 2025
Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran.
Proprioceptive inputs have crucial roles in control of the posture. The aim of the present study was to assess the effect of interfering with these signals on postural stability by ice-induced anaesthesia and local calf muscle fatigue. Seventeen healthy young individuals participated in this study to stand quietly and on an unstable platform under normal, anaesthesia, and fatigue conditions.
View Article and Find Full Text PDFImpact of dairy calf management practices on the intestinal tract microbiome pre-weaning.
J Med Microbiol
January 2025
Animal and Agriculture Department, Hartpury University, Gloucester, GL19 3BE, UK.
Microbiota in the gastrointestinal tract (GIT) consisting of the rumen and hindgut (the small intestine, cecum and colon) in dairy calves play a vital role in their growth and development. This review discusses the development of dairy calf intestinal microbiomes with an emphasis on the impact that husbandry and rearing management have on microbiome development, health and growth of pre-weaned dairy calves. The diversity and composition of the microbes that colonize the lower GIT (small and large intestine) can have a significant impact on the growth and development of the calf, through influence on nutrient metabolism, immune modulation, resistance or susceptibility to infection, production outputs and behaviour modification in adult life.
View Article and Find Full Text PDFEffects of feeding different proportions of steam-flaked corn-based starter on growth performance, immunity and serum metabolism of pre-weaned Simmental calves.
Front Vet Sci
January 2025
College of Animal Science, Xinjiang Agricultural University, Urumqi, China.
Introduction: This study examines the effects of steam-flaked corn starter on pre-weaned Simmental calves' growth, immunity, and metabolism. Despite benefits shown in adult cattle, research on calves is limited. The goal is to optimize calf feeding for better growth, health, and nutrient use.
View Article and Find Full Text PDFEvaluating the impact of 3-nitrooxypropanol supplementation on enteric methane emissions in pregnant nonlactating dairy cows offered grass silage.
JDS Commun
January 2025
Teagasc, Animal and Grassland Research and Innovation Centre, Moorepark, Fermoy, Co. Cork, Ireland, P61 P302.
Although 3-nitrooxypropanol (3-NOP; Bovaer10) has been proven to reduce enteric methane (CH) by ∼30% in indoor systems of dairying when the additive is mixed throughout TMR and partial mixed ration (PMR) diets, there has been limited research to date on the CH abatement potential of 3-NOP when mixed within a diet based on perennial ryegrass silage only and fed to pregnant nonlactating dairy cows. To investigate the effect of 3-NOP supplementation on enteric CH emissions of pregnant nonlactating dairy cows, a 6-wk study was undertaken in which treatment cows were supplemented with 3-NOP mixed within grass silage, whereas control cows were offered grass silage without additive supplementation. Enteric CH, hydrogen (H), and carbon dioxide (CO) were measured using a GreenFeed machine.
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