ACTA VETERINARIA ET ZOOTECHNICA SINICA ›› 2012, Vol. 43 ›› Issue (8): 1177-1185.doi:

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Research for Marginal Profits of Growth and Reproduction Traits of Pigs in Beijing Area

SHI Xiaoming1,2, DING Xiangdong1*, ZHANG Qin1, XIAO Wei3     

  1. 1. College of Animal Science and Technology, China Agricultural University, Beijing 100193, China; 2. Center for National Swine Genetics Evaluation, Beijing 100193, China; 3. Animal Husbandry and Veterinary Central Station, Beijing 100107, China
  • Received:2011-12-07 Revised:1900-01-01 Online:2012-08-24 Published:2012-08-24
  • Contact: DING Xiangdong

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Abstract: This study was conducted to estimate the marginal profits of growth and reproduction traits of pigs in Beijing area. A farm model was constructed using balancing method and system analysis. The production of commercial pigs was simulated, and the related data was obtained from farms. The results showed that the marginal profits of production and reproduction traits were 20.5 RMB for litter size born alive(pig/litter), -0.3 RMB for days at body weight 100 kg(day), 0.04 RMB for average daily gain(g·d-1), -186.4 RMB for feed conversion efficiency(kg·kg-1),-15 RMB for carcass backfat thickness(mm), and 1.8 RMB for sow reproductive longevity(litter). These results indicate that changes of the market prices affect the marginal profits of the traits investigated greatly.