Daejung Yu

ORCID: 0009-0008-9870-9734
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About
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Research Areas
  • Reproductive Physiology in Livestock
  • Genetic and phenotypic traits in livestock
  • Reproductive Biology and Fertility
  • Trace Elements in Health
  • Animal Nutrition and Physiology
  • Animal Disease Management and Epidemiology
  • GABA and Rice Research
  • Effects of Environmental Stressors on Livestock
  • Natural product bioactivities and synthesis
  • Fish Biology and Ecology Studies
  • Aquaculture Nutrition and Growth
  • Selenium in Biological Systems
  • Phytoestrogen effects and research
  • Moringa oleifera research and applications
  • Traditional and Medicinal Uses of Annonaceae
  • Microbial Natural Products and Biosynthesis
  • Ovarian function and disorders
  • Aquaculture disease management and microbiota
  • Sperm and Testicular Function

Jiangxi University of Traditional Chinese Medicine
2025

Gyeongsangnam-do Agricultural Research and Extension Services
2023-2024

Kyungpook National University
2023

Chonnam National University
2023

Taiwan Livestock Research Institute
2023

Hankyong National University
2023

Guangdong Academy of Agricultural Sciences
1994-2015

Animal Science Research Institute
1994

To investigate the effects of a synthetic soybean isoflavone (ISF) on growth performance, meat quality, and antioxidation in male broilers, 1,500 birds that were 42 d old allotted to 5 treatments with 6 replicates per treatment (50 replicate). Birds fed diets supplemented 0, 10, 20, 40, or 80 mg ISF/kg, respectively, for period 3 wk ad libitum. The results showed dietary supplementations 10 20 ISF/kg increased weight gain by 13.6 16.2% (P < 0.01) elevated feed intake 7.37% 0.05) 11.2% 0.01),...

10.1093/ps/86.7.1356 article EN cc-by-nc-nd Poultry Science 2007-07-01

The purpose of this study was to estimate the selenium (Se) requirement egg-laying ducks based on daily egg production and selenoprotein glutathione peroxidase (Gpx). Five-hundred forty laying were divided into six treatments, each containing replicates 15 ducks. birds caged individually received a Se-deficient basal diet (0.04 mg/kg) or diets supplemented with 0.08, 0.16, 0.24, 0.32, 0.40 mg/kg Se (as sodium selenite) for 6 months. experiment consisted two periods: an early-laying period 2...

10.1071/an13447 article EN Animal Production Science 2015-01-01

The size and location of the corpus luteum presence coexistent follicles are crucial factors in synchronizing recipients determining suitability for embryo transfer. However, there has been a recent decline conception rates after transfer, which is attributed to environmental pollution, uterine inflammation, ovarian cysts, other factors. Therefore, we conducted experiments establish novel criterion successful transfer assessment. To assess one day before ultrasound examinations equipped with...

10.5187/jast.2024.e31 article EN cc-by-nc Journal of Animal Science and Technology 2024-03-21

Abstract The authors have requested that this preprint be removed from Research Square.

10.21203/rs.3.rs-3617672/v1 preprint EN cc-by Research Square (Research Square) 2023-11-30

Background: Estrus in cows can be detected through vaginal electrical resistance or conductivity.However, there are no studies measuring Hanwoo cows.This study aims to measure the value and compare it with estrus ovulation.Methods: Vaginal values of 73 were measured before after at Gyeongsangbuk-do Livestock Research Institute.Measurements taken on days -6, -3, -2, -1, 0, 1, 2, 3, 6 artificial insemination.Large follicles ovulation confirmed using transvaginal ultrasonography.Results: The...

10.12750/jarb.38.4.263 article EN cc-by-nc Journal of Animal Reproduciton and Biotechnology 2023-12-31
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