Impacts of Oxidative Stress on Cattle Physiology

A special issue of Agriculture (ISSN 2077-0472). This special issue belongs to the section "Farm Animal Production".

Deadline for manuscript submissions: 10 January 2025 | Viewed by 1451

Special Issue Editors


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Faculty of Engineering and Applied Technologies, University of Life Sciences King Mihai I from Timisoara, Timisoara, Romania
Interests: oxidative stress; bioactive compounds; phytopharmaceuticals; method validation; quality management
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Department Biochemistry, Faculty of Veterinary Medicine, University of Agricultural Sciences and Veterinary Medicine Cluj Napoca, 400372 Cluj Napoca, Romania
Interests: natural antioxidants; oxidative stress; reactive oxygen species; in vitro antioxidant tests; lipophilic compounds; chromatograph
Special Issues, Collections and Topics in MDPI journals

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Department of Preclinical Sciences, Faculty of Veterinary Medicine, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, 400372 Cluj-Napoca, Romania
Interests: oxidative stress; in vitro and in vivo antioxidant activity; antioxidant enzymes; natural antioxidants
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The field of oxidative stress in ruminant medicine is still in its early developmental stages. Although oxidative stress has been linked to various conditions, much remains to be uncovered about its role in ruminant health and production. Determining whether oxidative stress is a primary cause of pathologic changes or a consequence of disease processes is still a matter of investigation. Dairy cattle undergo significant physiological changes during their one-year life cycle after reaching adulthood. Various stages, including breeding, pregnancy, fetal growth and development, parturition, and lactation, expose dairy animals to substantial influences of metabolic changes. The considerable oxygen requirements during periods of increased metabolic demand lead to an augmented production of reactive oxygen species (ROS). An imbalance between increased ROS production and the availability of antioxidant defenses may expose cows to heightened oxidative stress.

The goal of this Special Issue is to provide new advances connecting alterations in the pattern of antioxidants and scavenger compounds, mitochondrial dysfunction, imbalance of energy metabolism, and oxidative stress with onset and/or progression of cattle production systems, also taking into consideration the impact of environmental conditions on cattle welfare in the context of a changing climate.

There is a link between oxidative stress and the epigenetic landscape of the cell due to the consequences of ROS accumulation on the methylome, so globally oxidative stress can influence the cell even on DNA or histone levels. The mitochondria, the main intracellular source of ROS through ATP production, can be affected by epigenetic modification, the so called mitoepigenetic modifications having a connection between oxidative stress and the mitochondrial function on somatic cells and on germinative cells.

Papers reporting data on metabolic changes interconnected with the oxidative process in critical life-stage periods (sexual maturity/cyclicity, pregnancy, parturition, puerperal period, lactation, service period), in vitro fertilization as well as thermal stress are highly welcome.

Prof. Dr. Camelia Tulcan
Prof. Dr. Adela Pintea
Prof. Dr. Sanda Andrei
Guest Editors

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Keywords

  • cattle
  • oxidative stress
  • ROS
  • epigenetics
  • dairy production
  • reproduction
  • heat stress

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Published Papers (1 paper)

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12 pages, 914 KiB  
Brief Report
Relationships of Circulating and Preovulatory Follicular Fluid Hydrogen Peroxide Levels with Body Condition Score and Metabolome Profiles of Lactating Beef Cows
by Kennedy S. Hill, J. Lannett Edwards, Rebecca R. Payton, F. Neal Schrick, Shawn R. Campagna, Emma A. Hessock and Sarah E. Moorey
Agriculture 2024, 14(8), 1406; https://doi.org/10.3390/agriculture14081406 - 20 Aug 2024
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Abstract
Nutrient requirements for lactation often lead to a negative energy balance accompanied by reduced body condition and fertility in cattle. A previous study identified an increased abundance of serum metabolites associated with tissue mobilization and reactive oxygen species (ROS) generation in postpartum beef [...] Read more.
Nutrient requirements for lactation often lead to a negative energy balance accompanied by reduced body condition and fertility in cattle. A previous study identified an increased abundance of serum metabolites associated with tissue mobilization and reactive oxygen species (ROS) generation in postpartum beef cows with a thin versus moderate body condition. No studies, however, have measured ROS levels in the serum and follicular fluid of postpartum beef cows for comparison with body condition. We hypothesized that beef cows with a thin body condition would have elevated levels of ROS, as indicated by hydrogen peroxide (H2O2), in serum and preovulatory follicular fluid. Serum and follicular fluid samples from thin (n = 12), moderate (n = 11), and obese (n = 16) cows underwent a H2O2 bioluminescence assay. Levels of H2O2 in each biofluid were then assessed to determine relationships with cow body condition and serum or follicular fluid metabolites. Levels of H2O2 did not differ among body condition categories. In thin cows, the serum H2O2 level was positively related to the abundance of 3 metabolites with antioxidant activity. Among all animals, the follicular fluid H2O2 level was positively associated with the abundance of 13 metabolites, many of which had antioxidant roles. The results suggest an impact of postpartum beef cow metabolism on ROS levels in preovulatory follicular fluid or serum and highlight the need for additional studies to further investigate this potential impactor of reproductive efficiency and sustainable beef production. Full article
(This article belongs to the Special Issue Impacts of Oxidative Stress on Cattle Physiology)
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