We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Effects of Phytosterols on Growth Performance and Fat Metabolism in Broilers.
- Authors
Li Bo; Hussain, Ahmad; Yang Xue; Wang Jian Jun; Wang Tian
- Abstract
The purpose of this study was to investigate the effects of diet supplemented with different levels of phytosterols (PS) on growth performance and lipid metabolism in broilers. A total of four hundred 1-day-old chicks (female: male =1:1) were randomly assigned into 4 treatments, each of which replicated 5 times with 20 chicks per replicate. Birds were fed with a basal diet without any additive (control), or supplemented with PS at 30, 40, or 50mg/kg for 42 d. The results showed that PS had no significant (P>0.05) effect on growth performance during the whole experimental period of 1 to 42d of age. The highest levels of serum free fatty acid were found in diets supplemented with PS at 40mg/kg and 50 mg/kg in female and male chickens, respectively (P< 0.05). PS had no significant influence (P<0.05) on the serum triglycerides compared with the controls in chickens. Serum fatty acid synthetase was significantly decreased (P<0.05) in all chickens supplemented with PS compared with the control. In addition, hepatic fatty acid synthase and sterol regulatory element-binding transcription factor lc mRNA expressions in the 40 mg/kg and 50mg/kg PS treatments were found to be lower (P<0.05) than those in other treatments. It is concluded that PS, as feed additives, had a positive effect on lipolysis by inhibiting the enzymes related to lipolysis. Diets supplemented with 40mg/kg and 50mg/kg of PS had a better effect in female than in male chickens, respectively.
- Subjects
PHYTOSTEROLS; BROILER chickens; LIGASES; DIETARY supplements; LIPID metabolism; FATTY acids
- Publication
Pakistan Journal of Zoology, 2015, Vol 47, Issue 1, p111
- ISSN
0030-9923
- Publication type
Article