A study on effect of preparation of barium selenate for sow

TANG Weng hong 1 ,SUN Chun lin 2,YANG De ji 3,HUANG Ke he 3,WANG Xiao long 3 (1.Shanghai Municipal Husbandary and Veterinary Station, Shanghai 201103,China; 2.Zhumadian Animal Quarantine Station of Henan Province,Henan 463000,China; 3.College

long acting Se preparation; blood Se; sow; piglet

Preparation of long acting selenium was tested by two experiments. 16 pregnant sows(30 days gestation)were divided into four groups. Three were subcutaneous injected with the preparation equivalent to Se 0.5,1 and 1.5 mg/kg.BW respectively. Blood samples were collected from sows on days 30(before injection),70,and 110 of first gestation and 110 of second gestation, and from piglets in each litter at 45 days first and second farrowing. There were no difference in blood Se between treated groups whether sows or their piglets(P>0.05). Blood Se from treated sows and their piglets was higher significantly than that from untreated groups(P<0.01);Pigs(20kg) with the preparation by Se 5mg/kg·BW maintained blood Se at normal level although a transient peak showed at the first month (0.286±0.013mg/L), untreated group blood Se decreased monthly to deficient status. In conclusion, the long acting Se preparation is safe and effective to prevent piglets Selenium deficiency by given dose of Se 0.5 mg/kg.BW to sows.