Studies On Landaise Breed Character And Its Genetic Marker

The purpose of this experiment was to observe the growth and development regularity of grand Landaise from birth to 30 week age .And also view the correlation among egg numbers,fatty liver property of market Landaise and their protein(enzyme) content respectively. The result showed:The growth intensity of grand Landaise which included A,B,C and D was the strongest in four week age and the weight gaining speed was the most fastest. The paternal line A and C was highly significantly (P<0.01) or significantly (P<0.05) more than maternal line B and D in body weight and size. But the body weight and size between paternal line A and C had no significant.Egg numbers of grand B landaise correlated to first egg day and AKP activity and their coefficient were -0.470(P<0.05) and -0.6000(P<0.01) respectively. First egg day correlated to first egg weight and AKP activity and their coefficient were 0.476(P<0.05) and 0.484(P<0.05) respectively. Fatty liver weight correlated to GOT,GPT,Amy and total lipid content, their coefficient were 0.707(P<0.01), 0.570 (P<0.05), -0.589(P<0.05) and -0.636(P<0.05) respectively. The coefficient that fatty liver weight correlated to slaughtering weight, carcass weight and increasing weight was 0.808(P<0.01), 0.435(P<0.05), and 0.357(P<0.05) respectively.AKP isoenzyme of grand B and market Landaise appeared FF and SS types. Egg numbers of grand B' s SS type was significantly higher than FF type's(P<0.05).Fatty liver weight in SS type was highly significant more than FF type's . There were AA ,BB and AB types in grand B Tf and AA ,AB types in market Landaise Tf .BB type's egg numbers in grand B was the highest .Fatty liver weight of Tf BB type was more than AB type's ( P<0. 01 ) . There were AA, AC ,BB and CC in grand B Es-1 type . BB type's egg numbers was significant to AB type's ( P<0. 05) . The best regression equation of egg numbers in grand B Landaise was : y,=-0.150Xi-0.00334X2-0.061X3+ 61.122 RI =0.6550 (P<0. 01)(y1:egg numbers , x1: first egg day ,x2:first egg weight x3: AKP activity 360 day )The best regression equation of fatty liver weight in market Landaise was:y2=9.655x1 +3.848x2-0.065X3-0.243x4+995.14 R2 =0.8790 ( P<0. 01 ) (y:: fatty liver weight ,x1: GPT activity ,x2 : GOT activity ,x3: Amy activity ,3d: total lipid content blood biochemical index was 100 day )...