caa a22 4500 397568339 CHVBK 20180308164834.0 cr unu---uuuuu 161202e199608 xx s 000 0 eng 10.3382/ps.0751003 doi (NATIONALLICENCE)oxford-10.3382/ps.0751003 Inclusion of Oxidized Vegetable Oil in Broiler Diets. Its Influence on Nutrient Balance and on the Antioxidative Status of Broilers [Elektronische Daten] [RICARDA M. ENGBERG, CHARLOTTE LAURIDSEN, SØREN KROGH JENSEN, KIRSTEN JAKOBSEN] Over a period of 4 wk, 24 10-d-old broiler hens were fed diets containing 11% vegetable oil (9% rapeseed oil, 2% soybean oil), which was added either fresh (1 meq O2/kg oil) or oxidized (156 meq O2/kg oil). The effects of the dietary treatments on nutrient digestibility were examined in a balance experiment. The antioxidative status of the animals was evaluated using plasma concentrations of thiobarbituric acid-reactive substances (TBARS), erythrocyte hemolysis in vitro, selenium-dependent and selenium-independent activity of glutathione peroxidase in liver cell cytosolic fractions, and concentrations of tocopherols and other fat-soluble compounds with antioxidative properties (lutein, β-carotene, and retinol) in plasma and various tissues (skeletal muscle, cardiac muscle, liver, and abdominal fat). Compared to the fresh oil, the concentrations of linoleic and linolenic acid were slightly lower in oxidized oil. The concentration of α-tocopherol in the diet with fresh oil was an average of 80.8 mg/kg diet, whereas the diet with oxidized oil only provided 44 mg/kg. The dietary selenium content averaged 0.48 mg/kg in both diets. During the experiment, none of the animals showed symptoms of diarrhea or vitamin E deficiency. The intake of oxidized oil caused a growth depression after 2 wk. The retention of fat (P = 0.07), energy (P = 0.09), and α-tocopherol (P < 0.01) was lower in the group fed oxidized fat. Furthermore, these animals showed significantly higher plasma concentrations of TBARS (P < 0.01), and lower concentrations of tocopherols, lutein, β-carotene, and retinol in plasma and tissues. © 1996 Poultry Science Association, Inc. Metabolism and Nutrition nationallicence dietary oxidized fat nationallicence broiler nationallicence nutrient balance nationallicence antioxidative status nationallicence ENGBERG RICARDA M. Department of Nutrition and aut LAURIDSEN CHARLOTTE Department of Product Quality, Danish Institute of Animal Science, Research Centre Foulum, DK-8830 Tjele, Denmark aut JENSEN SØREN KROGH Department of Nutrition and aut JAKOBSEN KIRSTEN Department of Nutrition and aut Poultry Science Oxford University Press 75/8(1996-08), 1003-1011 0032-5791 75:8<1003 1996 75 ps https://doi.org/10.3382/ps.0751003 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.3382/ps.0751003 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- ENGBERG RICARDA M. Department of Nutrition and aut NATIONALLICENCE 700 1- LAURIDSEN CHARLOTTE Department of Product Quality, Danish Institute of Animal Science, Research Centre Foulum, DK-8830 Tjele, Denmark aut NATIONALLICENCE 700 1- JENSEN SØREN KROGH Department of Nutrition and aut NATIONALLICENCE 700 1- JAKOBSEN KIRSTEN Department of Nutrition and aut NATIONALLICENCE 773 0- Poultry Science Oxford University Press 75/8(1996-08), 1003-1011 0032-5791 75:8<1003 1996 75 ps Metadata rights reserved CC BY-NC-4.0 http://creativecommons.org/licenses/by-nc/4.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-oxford