Investigating the Effects of Different Levels of Vitamin D3 on Egg Quality and the Amount of Yolk Cholecalcifrol and Biochemical Parameters | ||
| علوم و فنون دامپروری | ||
| Volume 9, Issue 36, December 2020, Pages 27-36 PDF (2.17 M) | ||
| DOI: 10.22092/aasrj.2020.342599.1198 | ||
| Authors | ||
| Mahzad Irandoust* 1; Hashem Nayeri,2; Hossein Irandoust | ||
| 1Department of Biochemistry, Falavarjan Branch, Islamic Azad University, Isfahan, Iran. | ||
| 2Department of Biochemistry,falavarjan Branch,Islamic Azad University,Isfahan ,Iran | ||
| Abstract | ||
| The aim of this study was to investigate the effect of different levels of vitamin D3 on egg production and egg quality, as well as the level of egg yolk cholecalcipherol by HPLC technique. The spectrophotometer was measured. In this experiment, 180 laying hens with a lifespan of 66 to 69 weeks were used in a completely randomized design with 3 treatments, 5 repetitions and 12 hens in repetition for 4 weeks. The experimental treatments included a basic diet with 3300, 16500 and 33000 international units of vitamin D3 per kilogram of feed. The Duncan statistical test method was used to evaluate the results. The results showed that none of the production performance indicators differed significantly from the control group. The results of egg quality attributes showed that egg quality, egg yolk percentage and shell strength were not affected by dietary parameters, but the highest concentration of vitamin D3 supplementation improved shell health and was significant compared to the control group (P <0.05). Also, the amount of egg yolk cholecalcipherol increased significantly compared to the control group (P <0.05). No significant changes were observed in the activity of paraoxonase and arylstrase enzymes compared to the control group and no significant difference was observed in the concentration of malondialdehyde serum compared to the control group. | ||
| Keywords | ||
| Cholecalcifrol; Egg yolk; Paraoxonase; arile esterase; Malondialdehyde | ||
| References | ||
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