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The effects of different levels of yellow grease and vitamin E on performance of laying hens | ||
| علوم و فنون دامپروری | ||
| Article 8, Volume 5, Issue 19, September 2016, Pages 71-80 PDF (834.5 K) | ||
| Document Type: Research Paper | ||
| DOI: 10.22092/aasrj.2016.107589 | ||
| Author | ||
| A. Naobakht* | ||
| Abstract | ||
| This experiment was conducted to evaluate the effects of different levels of yellow grease and vitamin E on performance and egg traits of laying hens. Experiment carried out as(2×3) factorial arrangement included 2 levels of vitamin E (0 and 150 mg/kg) and 3 levels of yellow grease (0, 2.5 and 5%) with 288 Hi-line(W36) laying hens from 46 until 58 weeks of their ages in 6 treatments and 3 replicates (12 birds per replicate) in a completely randomized design. The results showed that using different levels of vitamin E and yellow grease did not have any significant effects on performance and egg traits of laying hens(P>0.05). The overall results indicated that in laying hens using yellow grease until 5% of their diets without having any significant effects on their performance and egg traits is possible and using 150 mg/kg vitamin E could not have positive effects on the laying hens performance and egg traits. | ||
| Keywords | ||
| : Laying hens; performance; Vitamin E; Yellow grease | ||
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