Short Communications

Effects of Selenium Yeast and Nano-Selenium on Performance, Egg Quality, Egg Selenium Content and Serum Antioxidant Indices of Quails During the Late Laying Period

  • QU Xiangyong ,
  • CAI Chao ,
  • HE Jun ,
  • WEI Yanhong ,
  • MAO Linfeng ,
  • YUAN Xiaoping ,
  • LI Xuecheng ,
  • SUN Anquan
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  • 1. College of Animal Science and Technology, Hunan Agricultural University, Changsha 410128, China;
    2. Changsha Yanghang Agricultural Science and Technology Limited Liability Company, Changsha 410000, China;
    3. Omega Biotech Shanghai Co., Ltd., Shanghai 201203, China

Received date: 2013-10-28

  Online published: 2014-03-04

Abstract

This experiment was conducted to study the effects of yeast selenium and nano-selenium on performance, egg quality, egg selenium content and serum antioxidant indices of quails during the late laying period. A total of 300 healthy quails (300 days of age) were randomly divided into 5 groups with 6 replicates per group and 12 quails per replicate. Quails in the control group were fed a basal diet, and quails in experimental groups were fed the basal diet supplemented with 0.2, 0.4 mg/kg yeast selenium and 0.2, 0.4 mg/kg nano-selenium, respcitively. The adjustment period lasted for 7 days, and the experimental period lasted for 42 days. The results showed as follows: 1) compared with the control group, the feed to egg ratio in 0.2 mg/kg selenium yeast group was significantly decreased (P<0.05), and the laying rate in 0.4 mg/kg selenium yeast group was significantly increased (P<0.05); the laying rate and average egg weight in 0.2 mg/kg nano-selenium group were significantly increased (P<0.05), and the feed to egg ratio was significantly decreased (P<0.05); the laying rate in 0.4 mg/kg nano-selenium group was significantly increased (P<0.05). 2) Two kinds of selenium sources had no significant effects on shape index, yolk index and shell thickness during the late laying period (P>0.05), but it could significantly delay the decrease of Haugh units during storage (P<0.01). The yolk color and Haugh unit in 0.4 mg/kg yeast selenium and nano-selenium groups were significantly increased compared with the control group (P<0.01). 3) At the 14th, 28th and 42nd days, the egg selenium content in nano-selenium and selenium yeast groups was significantly increased (P<0.01). 4) The serum glutathione peroxidase, total superoxide disumutase activⅡes and total antioxidative capacity in nano-selenium and selenium yeast groups were significantly increased (P<0.01), but the malondialdehyde content was significantly decreased compared with the control group (P<0.01). The antioxidant effect of nano-selenium was better than that of selenium yeast. In conclusion, feeding effect of nano-selenium is better than selenium yeast of quails during the late laying period, and the optimal supplemental level of nano-selenium is 0.2 mg/kg.

Cite this article

QU Xiangyong , CAI Chao , HE Jun , WEI Yanhong , MAO Linfeng , YUAN Xiaoping , LI Xuecheng , SUN Anquan . Effects of Selenium Yeast and Nano-Selenium on Performance, Egg Quality, Egg Selenium Content and Serum Antioxidant Indices of Quails During the Late Laying Period[J]. Chinese Journal of Animal Nutrition, 2014 , 26(3) : 732 -738 . DOI: 10.3969/j.issn.1006-267x.2014.03.024

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