title: Direct supplementation of diet is the most efficient way of enriching broiler meat with n-3 long-chain polyunsaturated fatty acids.
abstract: 1. Concentrations of beneficial omega-3 long-chain polyunsaturated fatty acids (n-3 LC-PUFAs) in poultry meat can be improved by increasing the concentration of n-3 PUFA in poultry diets. 2. A decrease in flavour quality is, however, usually associated with the dietary supplementation with n-3 PUFA, which is due to the susceptibility of PUFA to oxidation. 3. This experiment was conducted to study the effects of introducing two different n-3 fatty acid sources (extruded linseed and DHA Gold™, a proprietary algal product rich in docosahexaenoic acid), either separately or together, on broiler productive performance, and meat quality, oxidative stability, sensory traits and LC-PUFA profile. 4. Birds given the algal product displayed better productive performances than animals from other groups. 5. The data revealed an improvement in the fatty acid nutritional value of meat from birds receiving the algal product and an inefficient conversion of α-linolenic acid (LNA) into LC-PUFA. 6. Metabolisation of LNA in vivo is not sufficient to improve meat quality in n-3 LC-PUFA and direct supplementation of the diet with n-3 LC-PUFA is a better alternative to modulate an increase in beneficial fatty acids of broiler meat. 7. The overall acceptability of meat was negatively affected by the dietary supplementation with 7.4% of DHA, in contrast to the supplementation with 3.7% of DHA, which showed to be efficient in improving LC-PUFA meat content without affecting its sensory properties.
authors.affiliation: a CIISA, Faculdade de Medicina Veterinária , Universidade Técnica de Lisboa, Pólo Universitário do Alto da Ajuda , Lisboa , Portugal.
authors.forename: T
authors.initials: T
authors.lastname: Ribeiro
authors.forename: M M
authors.initials: MM
authors.lastname: Lordelo
authors.forename: S P
authors.initials: SP
authors.lastname: Alves
authors.forename: R J B
authors.initials: RJ
authors.lastname: Bessa
authors.forename: P
authors.initials: P
authors.lastname: Costa
authors.forename: J P C
authors.initials: JP
authors.lastname: Lemos
authors.forename: L M A
authors.initials: LM
authors.lastname: Ferreira
authors.forename: C M G A
authors.initials: CM
authors.lastname: Fontes
authors.forename: J A M
authors.initials: JA
authors.lastname: Prates
mesh_terms: D000821:Animal Feed / Q000032:analysis; D000818:Animals; D002645:Chickens / Q000378:metabolism*; D002849:Chromatography, Gas / Q000662:veterinary; D004032:Diet / Q000662:veterinary; D019587:Dietary Supplements / Q000032:analysis; D004281:Docosahexaenoic Acids / Q000008:administration & dosage / Q000378:metabolism*; D008043:Linseed Oil / Q000008:administration & dosage / Q000378:metabolism*; D008297:Male; D008460:Meat / Q000032:analysis*
chemical_list: D004281:Docosahexaenoic Acids; D008043:Linseed Oil