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Effect of oils sources on blood lipid parameters of commercial laying hens

Author(s): Murata LS | Ariki J | Machado CR | Silva L da PG da | Rezende MJM

Journal: Revista Brasileira de Ciência Avícola
ISSN 1516-635X

Volume: 5;
Issue: 3;
Start page: 203;
Date: 2003;
Original page

Keywords: Blood lipids | diet | laying hens | oil source

The experiment was carried out to verify if total cholesterol, HDL-cholesterol and triacylglicerol plasma levels are affected when laying hens are fed rations containing different dietary oil sources. One hundred sixty 50 week-old hens, assigned to four treatments with five replicates using 8 hens per replicate were used. The experimental period was of 84 days divided in 3 cycles of 28 days each. In the last day of each cycle, blood samples of 2 hens per replicate were randomly choose and blood samples were collected. On the other hand, blood was also collected at 7 am, 11 am and 3 pm aiming to study the daily changes of these lipids. Blood lipid parameters were not affected by different dietary oil sources (p > 0.05); however, HDL-cholesterol did change during the day, giving evidence that this lipid is indeed involved in the egg yolk formation.
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