Effects of Different High-Selenium Diets on Performance, Egg Quality, Egg Selenium Content and Antioxidant Capacity of Beijing-You Laying Hens

  • QI Zhiguo ,
  • ZHANG Tieying ,
  • FU Yao ,
  • WEN Zhiguo ,
  • WANG Jun ,
  • BAI Yucen ,
  • DONG Jieli ,
  • WANG Liang ,
  • CHEN Yu ,
  • GUO Jiangpeng
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  • 1. Beijing General Station of Animal Husbandry, Beijing 100101, China;
    2. Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China;
    3. Feed Research Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100081, China;
    4. China Rural Technology Development Center, Beijing 100045, China;
    5. Beijing Kangmu Animal Health Products and Veterinary Apparatus Supply Center, Beijing 100085, China

Received date: 2019-03-13

  Online published: 2019-10-17

Abstract

This research was conducted to study the effects of different high-selenium diets on performance, egg quality, egg selenium content and antioxidant capacity of Beijing-You laying hens. A total of 216 healthy 22-week-old laying hens were randomly divided into 3 groups with 4 replicates per group and 18 chickens per replicate. Hens in the control group was fed a basal diet without additional selenium, and the others in sodium selenite group and selenium yeast group were fed the basal diet supplemented with 0.5 mg/kg (as selenium) sodium selenite and selenium yeast, respectively. The pre-experimental period lasted for 7 days, and the experimental period lasted for 56 days. The results showed as follows:1) the feed/egg of sodium selenite group was significantly higher than that of the control group (P<0.05). There were no significant differences in laying rate, average daily egg weight and average daily feed intake among all groups (P>0.05). 2) The egg weight on day 56 of sodium selenite group and selenium yeast group was significantly higher than that of the control group (P<0.05), the yolk color on day 28 of selenium yeast group was significantly higher than that of the control group (P<0.05). The yolk color and albumen height on day 28 of selenium yeast group were significantly higher than those of sodium selenite group (P<0.05). 3) The yolk selenium content on days 4, 7, 14, 21, 28 and 56 of sodium selenite group and selenium yeast group was significantly higher than that of the control group (P<0.05). The yolk selenium content on day 56 of selenium yeast group was significantly higher than that of sodium selenite group (P<0.05). 4) The contents of selenium in yolk and whole egg of sodium selenite group were significantly higher than those of the control group (P<0.05). The contents of selenium in yolk, albumen and whole egg of selenium yeast group were significantly higher than those of the control group (P<0.05). The contents of selenium in albumen and whole egg of selenium yeast group were significantly higher than those of sodium selenite group (P<0.05). 5) The serum glutathione peroxidase activity of sodium selenite group and selenium yeast group was significantly higher than that of the control group (P<0.05). In conclusion, dietary supplementation of yeast selenium is better than sodium selenite in the performance, egg quality and egg selenium content of Beijing-You laying hens, and the effect of yeast selenium supplementation on diet is better than that of yeast selenium supplementation under the condition of high selenium level.

Cite this article

QI Zhiguo , ZHANG Tieying , FU Yao , WEN Zhiguo , WANG Jun , BAI Yucen , DONG Jieli , WANG Liang , CHEN Yu , GUO Jiangpeng . Effects of Different High-Selenium Diets on Performance, Egg Quality, Egg Selenium Content and Antioxidant Capacity of Beijing-You Laying Hens[J]. Chinese Journal of Animal Nutrition, 2019 , 31(10) : 4537 -4544 . DOI: 10.3969/j.issn.1006-267x.2019.10.017

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