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- Title
Single and combined effects of zinc and cinnamon essential oil in diet on productive performance, egg quality traits, and blood parameters of laying hens reared under cold stress condition.
- Authors
Torki, Mehran; Akbari, Mohsen; Kaviani, Keyomars
- Abstract
This study was conducted to evaluate the effects of adding zinc (Zn), cinnamon essential oil (Ci), or their combination in diet on productive performance, egg quality, and blood parameters of laying hens reared under cold stress condition (8.8 ± 3 °C). Feed intake (FI), feed conversion ratio (FCR), egg weight (EW), egg production (EP), and egg mass (EM) were evaluated during the 56-day trial period using 120 Lohmann LSL-Lite laying hens. Significant interactions between Ci and Zn on FCR, EW, EP, or EM were observed ( P < 0.05). The EP, EM, and EW increased, whereas FCR decreased ( P < 0.05) in the hens fed the diets including Ci and Zn (as single or combined form) compared to those fed the basal diet. There were significant interactions between Ci and Zn on the serum level of glucose and triglycerides as well as plasma concentration of zinc ( P < 0.05), so that serum content of glucose and triglyceride decreased and the plasma content of zinc increased in the hens fed the diets including Ci and Zn (together) compared to those fed the basal diet. From the results of the present experiment, it can be concluded that diet supplementation by the combined form of Ci and Zn could have beneficial effects on performance and blood parameters of hens reared under cold stress condition.
- Subjects
POULTRY feeding; ZINC content of feeds; PHYSIOLOGICAL effects of essential oils; EGG quality; EFFECT of stress on livestock; LIVESTOCK productivity
- Publication
International Journal of Biometeorology, 2015, Vol 59, Issue 9, p1169
- ISSN
0020-7128
- Publication type
Article
- DOI
10.1007/s00484-014-0928-z