TITLE:
Effects of Organic Selenium on Growth Properties, Selenium Absorption and Utilization, Antioxidant Activity and Immunity in Weaning Piglets
AUTHORS:
Weixian Zhang, Yong Li, Hongyu Deng, Zheng Li, Ruiping Xiang, Jianlai Guo, Chunmei Pan
KEYWORDS:
Se Absorption and Utilization, Growth Properties, Antioxidant Activity and Immunity, Weaning Piglets
JOURNAL NAME:
Food and Nutrition Sciences,
Vol.11 No.5,
May
18,
2020
ABSTRACT: This experiment was conducted to determine the influences of adding
organic selenium (Se) on growth properties, Se absorption and utilization,
immunity and antioxidant activity in diets of Duroc weaning piglets. This study
was performed on 36 (average weight 7.6 kg) weaning piglets. The weaning
piglets were randomly allocated to 1 of 4 homogeneous treatments (A, control
treatment, no added Se; B, Sodium selenite, 0.3 mg Se/kg feed; C, yeast Se, 0.3
mg Se/kg; D, DL-methionine Se 0.3 mg Se/kg). Every treatment had 3 replicates,
every replicate had 3 piglets. The experiment lasted for 35 d, with the first 7
d for adaptation. Feed intake, residual and contaminated feed were recorded every
day. Every piglet weight was weighted respectively at beginning and end of experiment.
Daily intake, gain weight and feed conversion rates of every replicate were
calculated finally. Se concentrations of serum, blood antioxidant and immunity
index were analyzed in the 36th d of experiment. The results showed average
daily gain of treatment C was significant higher (P 0.05) and D had higher trend than that of treatment A and B (P = 0.06) respectively. And feed and gain ratio of C and D had trends to lower than
them of A and B (P = 0.14). However, all the intake of every week and whole period had no
significant differences among treatments (P > 0.05). At same time, except for the Immunoglobulin M of treatment D
and C was higher than that of treatment A and B significantly (P P > 0.05). But they took on some obvious trends. For example, the Se
contents and glutathione peroxidase activities increased successively in order
of treatment A, B, C and D; the blood urea nitrogen and total bilirubin of
treatment A had higher trend than that of other treatments (P = 0.06). All in all, adding to organic Se in basal diets could improve
the animal’s healthy levels, growth properties and Se utilization to some
extent. Relatively speaking, the DL-methionine Se had more advantages compared
to yeast Se.