Abstract
This study conducts an analysis to improve the income of lower farms, to strengthen the competitiveness of Korean pig farms. The first way for high income is to improve the productivity of farms, and the other is to get good carcass grades of finishing pigs. As a way to improve the productivity of farms, we analyzed PSY, MSY, the appearance rate of 1+ grade, farrowing cycle per sow for year. We also analyzed the relationship with carcass grades and defective factors, and sow factors increasing the grade because the settlement price of the pig carcass grade can increase profitability. As a result, it is confirmed that the numbers of weaned piglet per sow and farrowing cycle per sow for year have the most influence on PSY, and the growing rate of suckling piglets and the numbers of weaned piglet per sow have the most influence on MSY. In addition, a statistically significant difference (p<0.001) between the final grade and gender was found, and among the defective factors pork belly status and fat attachment have the most influence on downgrading. It is expected that these analysis results help effective farm management and farmers' long-term and short-term income improvement.
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