Effect of vitamin A restriction on carcass traits and blood metabolites in Korean native steers

DOI PDF 被引用文献4件
  • Dong-Qiao Peng
    ADepartment of Animal Science and Technology, College of Animal Bioscience and Technology, Konkuk University, Seoul 05029, Korea.
  • Jae-Sung Lee
    ADepartment of Animal Science and Technology, College of Animal Bioscience and Technology, Konkuk University, Seoul 05029, Korea.
  • Won-Seob Kim
    ADepartment of Animal Science and Technology, College of Animal Bioscience and Technology, Konkuk University, Seoul 05029, Korea.
  • Young-Shin Kim
    ADepartment of Animal Science and Technology, College of Animal Bioscience and Technology, Konkuk University, Seoul 05029, Korea.
  • Mun-Hee Bae
    ADepartment of Animal Science and Technology, College of Animal Bioscience and Technology, Konkuk University, Seoul 05029, Korea.
  • Yong-Ho Jo
    ADepartment of Animal Science and Technology, College of Animal Bioscience and Technology, Konkuk University, Seoul 05029, Korea.
  • Young-Kun Oh
    CAnimal Nutrition and Physiology Team, Department of Animal Biotechnology and Environment, National Institute of Animal Science RDA, Jeollabuk-do 54875, Korea.
  • Youl-Chang Baek
    CAnimal Nutrition and Physiology Team, Department of Animal Biotechnology and Environment, National Institute of Animal Science RDA, Jeollabuk-do 54875, Korea.
  • Seong-Gu Hwang
    DDepartment of Animal Life and Environment Science, Hankyong National University, Kyonggi-do 17579, Korea.
  • Hong-Gu Lee
    ADepartment of Animal Science and Technology, College of Animal Bioscience and Technology, Konkuk University, Seoul 05029, Korea.

書誌事項

公開日
2018-06-05
権利情報
  • https://doi.org/10.1071/journalslicense
DOI
  • 10.1071/an17733
公開者
CSIRO Publishing

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説明

<jats:p>The objective of the present study was to determine the effect of vitamin A restriction on serum metabolites and carcass performance in Korean native steers during a fattening period. In Study 1, 61 steers were divided into three groups and supplied diets with concentrate and roughage containing 890 IU/kg of provitamin A and then supplemented with either 8000 IU (control), 3000 IU (T1) or 0 IU (T2) of premix vitamin A per kilogram of dry matter. In Study 2, 19 steers were divided into two groups and provided with the same basic diets then supplemented with 8000 IU (control) or 0 IU (T) of premix vitamin A per kilogram of dry matter. In Study 1, we found that serum vitamin A concentrations were significantly (P &lt; 0.05) lower in the T2 group, along with significant (P &lt; 0.05) increases in blood urea nitrogen, albumin, creatinine and non-esterified fatty acid concentrations. In Study 2, the T group had a higher (P &lt; 0.05) skeletal muscle mRNA expression levels of myogenic factor 6 and a trend for the greater yield grade (P = 0.095). However, marbling scores in the study showed no significant. Therefore, vitamin A restriction with vitamin premix during the fattening period was associated with a trend for a higher yield grade, but marbling scores that were not significantly higher. Metabolic parameters in this stage could be used as indicators in future metabolic studies and as early health status markers in Korean native steers.</jats:p>

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