绍兴蛋鸭血清淀粉酶同功酶与生产性能关系的研究

测定并比较１６０日龄绍兴产蛋鸭和非产蛋鸭血清淀粉酶的多态性表现型的差异。结果表明：１６０日龄绍鸭血清淀粉酶主要包括：Ａｍｙ－１，Ａｍｙ－２和Ａｍｙ－３三个区域，均表现明显的多态性。Ａｍｙ－１区为鸭血清淀粉酶的主信号区，产蛋绍鸭血清淀粉酶Ａｍｙ－１区以Ｂ型为主，Ａｍｙ－３区为无带型；未产蛋绍鸭Ａｍｙ－１区以Ａ型居多，Ａｍｙ－３区为２条带型的频率为３７％，二者之间差异显著。１６０日龄绍兴蛋鸭血清淀粉酶表现型和体重无显著相关。

Comparative studies on the serum amylase polymorphisms of Shaoxing female duck and relations with production traits

Serum samples of 160 days shaoxing female ducks were analyzed using vertical polyacrylamide gel for their amylase(Amy) isozymes The results were as follows:(1)serum amylase isozymes of shaoxing female ducks hed 3 regions,the main signal region was amy 1 region,polymorphic evidence was presented in 3 regions (2)serum amylase phenotype of laying ducks were mainly B in region Amy 1 and no stripe type in region Amy 3;The frequency of A type in region Amy 1 of no laying ducks was relatively high,up to 56% The significantly difference phenotypes were showed between laying and no laying ducks (3)serum amylase phenotypes of 160 days shaoxing ducks were no relations with body weigh