Effect of feed bioadditives containing citric acid and phyto extracts on storage of minerals in bones of broiler chickens | Vplyv kŕmneho bioaditíva s obsahom kyseliny citrónovej a rastlinných výťažkov na ukladanie minerálnych látok do kostí brojlerových kurčiat
2010
Ruzsíková, E, Slovak Agricultural Univ. in Nitra (Slovak Republic) | Horniakova, E. | Cabaj, M. | Michálková, J.
The effect of feed additives (citric acid and phyto extract supplements) on minerals in broiler bones was investigated on ROSS Hybrid 308. The chickens 1,212) were divided into three groups with four replications. The feedmixture of the trial group 1 (PS 1, without citric acid) contained also the extract from echinacea, origanum, salvia, and chamomilla. The trial group 2 (PS 2) was fed by the feed mixture containing citric acid, and from the phyto extracts only origanum was added. The feed experiment was conducted with 6 animals for each group (3 males and 3 females) for a determination of the mineral content in the chicken shin. All samples were evaluated seperatly for males and females due to their difference of hormonal profiles. The tested additives had a positive effect on Ca storage in the bones in both sexes with statistically significant effect (P lt 0.05) in the PS 2 group (12.32 and 19.28 g/kg). The negative effect of tested additives was observed in the P content. Significant difference (6.36-12.51 g/kg) was observed (P lt 0.05) in each group without males in PS 2. Negative effect could be induced by interaction of active compounds, which are presented in the tested plants. We found also statistically negative effect (P lt 0.05) on the Zn concentration in the females of PS 1 (10.32 mg/kg) and PS 2 (13.92 mg/kg). The same tendency (negative effect, P lt 0.05) was determined in the Fe content (females) between the trial groups (mutually) and the control group (K: 230.9 mg/kg, PS1: 213.9 mg/kg, PS2: 205.9 mg/kg). The opposite tendency in the amount of Fe was observed in the bones of the experimental male groups (PS1: 254.1 mg/kg, 290.8 mg/kg) in comparison with the control group (K: 198 mg/kg).
Показать больше [+] Меньше [-]