Influence of Dietary Nanoselenium Supplementation on the Meat Characteristics of Broiler Chickens
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Date
2017
Journal Title
Journal ISSN
Volume Title
Publisher
Int. J. Curr. Microbiology and Applied Sciences
Abstract
Dietary selenium supplementation in the poultry has been regularly practiced using the
inorganic and organic forms to enhance the growth and antioxidant defence system. These
forms have the limitations of having narrow margin of safety and non specific binding to
tissue proteins, hence an alternate form of selenium i.e. nano selenium having greater
potential as poultry and livestock feed supplement with higher bioavailability, higher
margin of safety and seven fold lower acute toxicity was prepared using starch, ascorbic
acid and bovine serum albumin. The nanoselenium (15-40 nm) synthesized were
characterized for purity, morphology and size by XRD analysis, transmission electron
microscopy and UV spectrophotometry. To investigate the role of selenium forms and
levels on the meat characteristics of broiler chickens, a biological trial was conducted in
one hundred and eighty day old straight run chickens, divided into six treatment groups
each having three replicates. The treatment groups were supplemented with 0.3 mg sodium
selenite /kg (T2), 0.3 mg organic selenium /kg (T3), nanoselenium at three levels viz.0.15
(T4), and 0.3 (T5) and 0.6 mg/kg (T6) and T1 group was the control, fed with the basal
diet alone. The birds were slaughtered at the end of 42nd day and breast meat
characteristics - pH, drip loss and lipid peroxidation were estimated. The results of the
study indicated that the nanoselenium supplemented chickens had significant (p<0.05)
reduction in breast muscle drip loss and lipid peroxidation as compared with the control.
The selenium levels and forms did not influence the pH of breast muscle both at 24 and 48
hrs. Thus nanoselenium (0.3 – 0.6mg /kg diet) can be fed to the broiler chickens to reduce
the drip loss and lipid peroxidation and thereby enhance the meat properties.
Description
Keywords
Veterinary Science, Veterinary Physiology