Complutense University Library

Effect of dietary high-oleic acid and conventional sunflower seeds and their refined oils on fatty acid composition of adipose tissue and meat in broiler chickens

Ortiz Vera, Luis Tomás and Alzueta Lusarreta, Carmen and Rebolé Garrigós , Almudena and Rodríguez Membibre, María Luisa and Arija Martín, Ignacio and Brenes Paya, Agustín (2006) Effect of dietary high-oleic acid and conventional sunflower seeds and their refined oils on fatty acid composition of adipose tissue and meat in broiler chickens. Journal of Animal and Feed Science, 15 . pp. 83-95. ISSN 1230-1388

[img] PDF
136kB
View download statistics for this eprint

==>>> Export to other formats

Abstract

The influence of different dietary fat source on performance, tissue fatty acid composition (abdominal fat, thigh and breast muscles) and abdominal fat melting point was evaluated in femaJe broiler chickens. Birds were red diets containing 80 g/kg of added fat by the inclusion ofhigh-oJeic acid sunflower secd (HOASS) and conventionaJ sunflower seed (CSS), their respective refined oiJs (HOASO and CSO) and lard during three weeks (from 2\ to 42 d of agc). Feed efficiency was significantly impaired by the inclusion ofHOASS and CSS in diet when compared with HOASO, CSO and lard. The levcls of the majar fatty acids (palmitic, oleic and linoleic) in cach animal tissue reflectcd the fatty acid profilc of the dietary fat (r2 >0.83). The linear regression analysis between fatty acid content ami mclting point of abdominal fat gave the highest coefficient of determination for thc saturated fatty acid contcnt (r2=0.80). It is concluded that the seeds ofhigh-oleic acid and conventional varieties orsunflower might be used in poultry feeding in arder to increase, rcspectively, monounsaturated and polyunsaturatcd fatty acid contents in both abdominal adipose tissue and intramuscular fato The feeding ofboth types of seeds had similar effects to their respective refined oils on the unsaturated to saturatcd rally acid ratio ofthe chicken tissues and on the melting point of abdominal fato NevcrtheJess, thcy showed a ncgative influence on fat firmness when compared with the dietary inclusion of lard.

Item Type:Article
Uncontrolled Keywords:Carne de pollo; Semillas de girasol; Ácido oleico; Tejido adiposo; Ácidos grasos; Broiler; High-oleic acid Sunflower seed; Sunflower seed; IDeal; Adiposc tissue; Rally acids
Subjects:Medical sciences > Veterinary > Chemistry of food and nutrition
Medical sciences > Veterinary > Nutrition and care of the animals
ID Code:5548
Deposited On:24 May 2006
Last Modified:25 Aug 2010 11:25

Repository Staff Only: item control page