The effects of propolis and vitamin C supplemented feed on performance, nutrient utilization and carcass characteristics in broilers exposed to lead
Livestock Science, cilt.148, sa.1-2, ss.10-15, 2012 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 148 Sayı: 1-2
- Basım Tarihi: 2012
- Doi Numarası: 10.1016/j.livsci.2012.05.001
- Dergi Adı: Livestock Science
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.10-15
- Anahtar Kelimeler: Broiler, Lead, Performance, Propolis, Utilization, Vitamin c
- Hatay Mustafa Kemal Üniversitesi Adresli: Evet
Özet
The present study was conducted to determine the effects of vitamin C and propolis supplemented diets on nutrient utilization, carcass characteristics and performance in broilers exposed to oxidative stress by lead administration. 360 three-days-old broiler chicks (Ross 308) were randomly divided into four treatment groups each containing 90 animals, including six replicate groups for each treatment. The experimental groups were designed for a 3-42 days period as follows: no supplement to basal ration (Control; group I); supplement of 500. ppm vitamin C and 200. ppm lead (as lead acetate) to basal ration (Vitamin C+Pb; group II); supplement of 1. g/kg propolis and 200. ppm lead (as lead acetate) to basal ration (Propolis+Pb; group III); and supplement of 200. ppm lead (as lead acetate) to basal ration (Pb; group IV). Feed intake was reduced with lead inclusion in the diet (P<0.05). The presence of lead in the diet reduced the body weight gain (BWG) but vitamin C or propolis supplementation improved the BWG in comparison to lead administered group at 3-42 days (P<0.01). Feed conversion ratio of control, vitamin C+lead, and propolis+lead groups improved (P<0.05) in comparison to lead administrated group from 29 to 35 days. Utilization of crude protein improved with both vitamin C and propolis supplementation in comparison to the lead administrated group (P<0.05). Hot and cold carcass, leg and breast yields were higher (P<0.05) for the control than for the lead added groups (P<0.05). Except to breast yield, other carcass characteristics in the control group were similar with those of the vitamin C or propolis supplemented groups. The results suggested that lead inclusion in diet of birds had negative effects on the performance while propolis supplements improved the growth, nutrient utilization and carcass yield. © 2012 Elsevier B.V.