摘要
采用双抗体夹心型ELISA测定二花脸猪不同日龄血浆转铁蛋白(Tf)含量,呈现出哺乳仔猪高于后备猪,后备猪高于成年猪,成年后趋于基本稳定的规律,性别间差异不明显,Tf含量与体重和日增重间呈显著或极显著水平正相关,与血浆含铁量有近乎平行变化的关系,且二者相关程度较高,初步认为,Tf含量可望成为猪育种选种中一项重要指标。
Plasma transferrin (Tf) concentration in Er-Hua-lian pigs at various stageswere measured by the sandwich enzyme-linked immunosorbent assay(ELISA). The relation-ship of Tf concentration to body weight, daily gain and plasma iron(PI) concentration wereassessed. The results showed that Tf concentration of nursing piglets was higher than those ofboth growing pigs and adults, and Tf concentration of growing pigs was higher than that ofadults. PI concentration variation coincided well with that of Tf concentration. Heritabilitiesof Tf at various stages ranged from 0.338 to 0.528. There were signinficant positive correla-tions(P<0.05 or P<0.01) between Tf concentration and body weight, daily gain, PI con-centration at each stages. There were some significant genetic and phenotypic corrrelationsbetween Tf concentration at 30 days of age and daily gain at 60 days of age, and betweenTf concentrations at 45, 60, 120, 150 days of age and daily gain at 180 days of age. It issuggested that Tf should be an important index in pig breeding.
