Synthesis and Evaluation of Nanoselenium in Broiler Chickens
KrishiKosh
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Title |
Synthesis and Evaluation of Nanoselenium in Broiler Chickens
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Creator |
Visha, P.
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Contributor |
Nanjappan, K.
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Description |
Trace minerals like selenium are added to the diet of broiler chickens to enhance the antioxidant, immune statues and overall growth performance. Regular selenium supplemental sources have the limitations of low safety margin and long term accumulative toxicity. Hence, an alternate selenium form – nanoselenium with higher efficacy, bioavailability and lesser toxicity was synthesized and its influence on production performance of broiler chickens assessed. Nanoselenium was prepared by four different methods, out of which the nanoselenium prepared by using ascorbic and starch had particle size of 15-40 nm and was used for the biological trial in broiler chickens owing to simplicity of preparation and easy adaptability for large scale production. A total of 180 numbers of day old broiler chickens divided into six treatment groups with three replicates each were used for the biological trial. The five treatment groups were – sodium selenite supplementation 0.3 mg/kg (T2), organic selenium 0.3 mg/kg (T3) and three graded levels of nanoselenium at 0.15, 0.3 and 0.6 mg/kg (T4, T5 and T6, respectively) along with control group (T1) maintained on only the basal diet with no additional supplementation of selenium. Weekly body weight and feed consumption were recorded. Blood was collected at fourth, fifth and sixth weeks to assess the antioxidant activity, immune status, levels of thyroid hormones, plasma biochemical constituents, aspartate amino transferase and alanine amino transferase enzymes. The selenium content of plasma, liver and breast muscle was estimated. Glutathione peroxidase activities in blood, erythrocyte and liver, meat characteristics of breast muscle, SelW gene expression in immune organs and histomorphological study of vital organs were carried out. The nanoselenium supplemented in the range of 0.15-0.6 mg/kg increased the body weight gain and improved the feed conversion significantly (p |
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Date |
2016-07-26T15:52:26Z
2016-07-26T15:52:26Z 2013 |
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Type |
Thesis
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Identifier |
http://krishikosh.egranth.ac.in/handle/1/69964
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Language |
en
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Format |
application/pdf
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Publisher |
Tamil Nadu Veterinary and Animal Sciences University
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