摘要
对淳安花猪保种群体(公猪13头、母猪126头)的体貌、体重、体尺和繁殖性能进行了测定,并采用9个微卫星座位检测群体遗传多态,所得数据与历史数据进行分析比较。结果表明:现有保种群体符合传统的外貌描述,7个血统的主要毛色有"乌云盖雪""银项圈""小散花",其中以"乌云盖雪"居多;主要头型有"狮头""寿头""鼠头",其中以"寿头"居多。成年母猪平均体重98.2 kg,平均体长128.3 cm,分别比1980年增加10.7%和10.5%。一、二、三胎母猪的平均窝产仔数分别为9.67,11.87,13.04头,分别比1980年提高45.0%,39.8%,15.9%。期望杂合度、观察杂合度与2008年产区群体相比有所下降,但多态信息含量(PIC)基本不变。研究表明淳安花猪现有保种群体符合品种特征,多样性丰富,且保存较好。
In the present study, Chun＇an spotted pig conservation population including 7 lineages （13 boars and 126 sows） were studied. Their physical appearance, shape size, body weight and reproductive performance were meas- ured, and the genetic polymorphism was detected using 9 microsatellite markers. The acquired data were compared with the historical data. The results showed that the physical appearance of present conservation population was the same as traditional description. The coat colors of 7 lineages contained ＂dark cloud covered snow＂, ＂silver collar＂ and ＂scattered spots＂, and the major coat color was ＂dark cloud covered snow＂. The head shapes contained ＂lion head＂, ＂Shou head＂ and ＂mouse head＂, and the main type was ＂Shou head＂. The average weight of adult sows was 98.2 kg, and the average body length was 128.3 cm, which increased 10. 7% and 10. 5% , respectively, com- pared with the recorded data in 1980. The average litter sizes of the first, second and third parity were 9. 67, 11.87 and 13.04 heads per litter, which increased 45.0% , 39. 8% and 15.9% , respectively, compared with the recorded data in 1980. Microsatellite analysis showed that the expected and observed heterozygosity decreased compared with the conservation groups in Chun＇an in 2008, but the polymorphism information content （PIC） remained unchanged.According to the research, it appeared that the presented conservation population of Chun＇an spotted pigs conserved the breed characteristics, and the germplasm diversity was rich and well preserved.
出处
《浙江农业学报》
CSCD
北大核心
2015年第7期1154-1159,共6页
Acta Agriculturae Zhejiangensis
基金
杭州市重大科技创新专项(20122512A03)
关键词
淳安花猪
保种
种质结构
Chun＇an spotted pigs
breed conservation
germplasm structure
