Back to Search
Start Over
Multiple Regression Analysis to Estimate the Unit Price of Hanwoo (Bos taurus coreanae) Beef
- Source :
- Korean Journal for Food Science of Animal Resources
- Publication Year :
- 2017
- Publisher :
- Korean Society for Food Science of Animal Resources, 2017.
-
Abstract
- This study were estimated the contribution of carcass traits to unit price, to analyze the marbling score as a categorical variable rather than a numerical variable, and to develop an optimal model that also includes the holiday effect and the raising period. The data for this study were acquired from the Quality Evaluation of the Korea Institute for Animal Products, and consisted of the trading records of 1,613,699 heads at 12 wholesale markets from 2010 to 2014. The unit price of a cow was estimated from the following parameters: −52.50 Won/mm, 8.93 Won/cm2, 7.20 Won/kg, and −1.04 Won/day for backfat thickness, eye muscle area, carcass weight, and raising period, respectively. Parameters for the dummy variables of marbling scores varied from 0 to 8328.74 Won/kg, which means that each marbling score grade had a different price value. The unit price of a steer was estimated from the following parameters: −92.12 Won/mm, 20.22 Won/cm2, 1.30 Won/kg, and −1.72 Won/day for backfat thickness, eye muscle area, carcass weights, and raising period, respectively. Parameters for dummy variables of marbling scores varied from 0 to 7338.80 Won/kg, which means that the grades of each marbling score had different price values. The unit price of sales during traditional holidays was significantly higher (827.71 Won/kg for cows, and 645.15 Won/kg for steers) than during non-holidays.We conclude that the use of categorical values for marbling scores would be needed to evaluate the price of Hanwoo beef using multiple regression analysis based on carcass traits and environmental factors.
- Subjects :
- multiple regression
Unit price
Marbled meat
0402 animal and dairy science
marbling score
Eye muscle
Regression analysis
unit price
04 agricultural and veterinary sciences
040401 food science
040201 dairy & animal science
Article
0404 agricultural biotechnology
Animal science
Carcass weight
Dummy variable
Hanwoo
Linear regression
Animal Science and Zoology
Food science
dummy variable
Food Science
Mathematics
Subjects
Details
- ISSN :
- 12258563
- Volume :
- 37
- Database :
- OpenAIRE
- Journal :
- Korean Journal for Food Science of Animal Resources
- Accession number :
- edsair.doi.dedup.....96b3cf72aa59615353482f37692b0b63