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

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Murata, LS
Ariki, J [UNESP]
Machado, CR [UNESP]
Silva, L da PG da
Rezende, MJM

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Fundação APINCO de Ciência e Tecnologia Avícolas


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.



Blood lipids, diet, Laying hens, oil source

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Revista Brasileira de Ciência Avícola. Fundação APINCO de Ciência e Tecnologia Avícolas, v. 5, n. 3, p. 203-206, 2003.