Jilin Nong Big White Goose Feather Quality And Characteristics

Three lines of J.A.U write geese and the heterosis were used to study the growth and physical and chemical characters of their downs in five parts of breast, abdomen, back, neck and legs. The heterosis of geese down and the relativity between the blood biochemical traits and the yield of down were also be analyzed.The experiment results of the growth and physical and chemical characters of downs in three lines may be summarized as follows:1. There were differences of the growth of down among there lines. The quality of down from line II was better than it from line I and. III2. The quality of down in chest and abdomen was better than other parts of body.3. There were differences of the growth and development of down in different lines. The growth of down in line I and II was stop after the age of fifteen week old but seventeen week old in line III.4. There was prominent positive correlation between the down length and kilo-down weight.The experiment results of the heterosis of geese down summarized as follow:The down's heterosis was very evidence. The hybridize make the best of the female parent's and father's choiceness character.The experiment results of the relativity between the blood biochemical traits and the yield of down may be summarized as follows:There was very evident curve variety rule between the serum-albumen and the yield of down. This curve regress relation accord with biology disciplinarian.