Selenomethionine: an Effective Selenium Source for Sow to Improve Se Distribution,Antioxidant Status,and Growth Performance of Pig Offspring |
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Authors: | Xiuan Zhan Yanzhao Qie Min Wang Xing Li RuQian Zhao |
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Institution: | (1) Feed Science Institute, College of Animal Science, Zhejiang University, Hangzhou, 310029, People’s Republic of China;(2) Laboratory of Animal Nutrition and Health, Institute of Subtropical Agriculture, The Chinese Academy of Sciences, Changsha, 410125, People’s Republic of China;(3) Key Laboratory of Animal Physiology and Biochemistry, Ministry of Agriculture, Nanjing Agricultural University, Nanjing, 210095, People’s Republic of China |
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Abstract: | The present study was to investigate the efficiency of maternal selenomethionine intake on growth performance, Se distribution,
and antioxidant status of pig offspring by comparing with sodium selenite. A total of 12 sows (Landrace × Yorkshire) with
same pregnancy were randomly divided into two groups; each group was replicated six times. These two groups received the same
basal gestation and lactation diets containing 0.04 mg Se/kg, supplemented with 0.3 mg Se/kg sodium selenite and selenomethionine
(i.e., seneno-dl-methylseleno), respectively. The feeding trial lasted for 60 days, with 32 and 28 days for gestation and lactation period,
respectively. Compared with sodium selenite, maternal selenomethionine intake significantly (p < 0.05) increased the daily weight gain of piglet from birth to weaning. The Se concentration in the colostrum and milk and
tissue Se content of piglets were significantly higher (p < 0.05) in the selenomethionine-treated group. The antioxidant status was greatly improved in piglets of selenomethionine-treated
group and was illuminated by the increased total antioxidant capability, glutathione peroxidase, superoxide dismutase, and
glutathione, and decreased the malondialdehyde level in the organs of piglets. The increased (p < 0.05) triiodothyronine (T3) and decreased (p < 0.05) thyroxine (T4) concentration indicated the improved protein synthesis and energy production in the selenomethionine-treated group. The
increased (p < 0.05) pancreatic digestive enzymes of protease, amylase, and lipase activities indicated that maternal selenomethionine
intake may have a positive effect on the degradation and absorption of nutrients in its piglets. In summary, we concluded
that maternal selenomethionine intake increased Se deposition, antioxidant status, and nutrient use efficiency, thus providing
an effective way to improve the growth performance of piglets from birth to weaning. |
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