This paper makes an analysis of the phenotype tendencies of dam populations White Large （WL） and Landrace （L） over the years 2000-2009 after the introduction of Multivariate Best Linear Unbiased Prediction and ani...This paper makes an analysis of the phenotype tendencies of dam populations White Large （WL） and Landrace （L） over the years 2000-2009 after the introduction of Multivariate Best Linear Unbiased Prediction and animal model into the genetic evaluation of pigs in the Slovak Republic. The analysis of slaughter parameters over the years 2000-2009 showed a decreasing tendency concerning the fat thickness in WL from 18.30 （2000） to 12.40 mm （2009）, which represents the reduction by 5.9 mm; in L from 16.40 mm （2000） to 12.10 mm （2009）, which means the reduction by 4.30 mm. There was also observed a positive tendency in the percentage of carcass lean meat in a slaughter body. The overall population average for the years 2000-2009 was as follows： WL 54.36% and L 54.61%. The highest values of meatiness in 2000-2009 were achieved in WL ＋ 1.59% and L ＋ 2.92%. Apart from the daily gains in all parameters, there were also found both highly significant statistical differences and interactions between a period and a breed.展开更多
文摘This paper makes an analysis of the phenotype tendencies of dam populations White Large （WL） and Landrace （L） over the years 2000-2009 after the introduction of Multivariate Best Linear Unbiased Prediction and animal model into the genetic evaluation of pigs in the Slovak Republic. The analysis of slaughter parameters over the years 2000-2009 showed a decreasing tendency concerning the fat thickness in WL from 18.30 （2000） to 12.40 mm （2009）, which represents the reduction by 5.9 mm; in L from 16.40 mm （2000） to 12.10 mm （2009）, which means the reduction by 4.30 mm. There was also observed a positive tendency in the percentage of carcass lean meat in a slaughter body. The overall population average for the years 2000-2009 was as follows： WL 54.36% and L 54.61%. The highest values of meatiness in 2000-2009 were achieved in WL ＋ 1.59% and L ＋ 2.92%. Apart from the daily gains in all parameters, there were also found both highly significant statistical differences and interactions between a period and a breed.
