title: Growth performance, carcass traits, meat chemical composition and blood serum metabolites of broiler chicken fed on diets containing flaxseed oil.
abstract: 1. This study evaluated the effects of diets with partial and total substitution of soya bean oil (SO) with flaxseed (linseed) oil (FO) on broiler chicken performance, carcass traits, meat chemical composition and blood serum metabolites. 2. A total of 448 one-d-old Cobb 500 broiler chicken were used. They were allotted among 4 treatments with 8 replications, using a completely randomised design, for 35 d. Four diets were compared: T1 = 100% SO (3%, 1-7 d; 4%, 8-21 d; and 5%, 22-35 d); T2 = 50% SO + 50% FO; T3 = 25% SO + 75% FO and T4 = 100% FO. 3. No significant differences were observed in body weight (BW), body weight gain (BWG), feed intake (FI), feed conversion ratio (FCR) and blood serum metabolites (total triglycerides, TRI; total cholesterol, CHO; high-density lipoprotein, HDL; low-density lipoprotein, LDL; glucose, GLU; albumin, ALB; globulin, GLO; and total proteins, TPs). Significant effects were observed for TRI, CHO, HDL, GLU, HDL, LDL, ALB and GLO with regard to the day of collection. 4. Carcass traits did not show significant differences for the treatments. No significant differences were observed for breast and drumstick chemical compositions, with the exception of drumstick fat concentration (quadratic effect). 5. In conclusion, the partial or total substitution of SO with FO did not affect growth performance, carcass traits, meat chemical composition or blood serum profile in broiler chicken. Therefore, FO can be an alternative to SO in the diet formulation for broiler chicken.
authors.affiliation: a School of Veterinary Medicine , Federal University of Pampa , Uruguaiana , Rio Grande do Sul , Brazil.
authors.forename: D C N
authors.initials: DC
authors.lastname: Lopes
authors.forename: E G
authors.initials: EG
authors.lastname: Xavier
authors.forename: V L
authors.initials: VL
authors.lastname: Santos
authors.forename: F M
authors.initials: FM
authors.lastname: Gonçalves
authors.forename: M A
authors.initials: MA
authors.lastname: Anciuti
authors.forename: V F B
authors.initials: VF
authors.lastname: Roll
authors.forename: F A B
authors.initials: FA
authors.lastname: Del Pino
authors.forename: J O
authors.initials: JO
authors.lastname: Feijó
authors.forename: A A S
authors.initials: AA
authors.lastname: Catalan
mesh_terms: D000821:Animal Feed / Q000032:analysis; D000818:Animals; D001774:Blood Chemical Analysis / Q000662:veterinary; D002645:Chickens / Q000254:growth & development / Q000502:physiology*; D004032:Diet / Q000662:veterinary; D004305:Dose-Response Relationship, Drug; D008043:Linseed Oil / Q000008:administration & dosage / Q000494:pharmacology*; D008460:Meat / Q000032:analysis*; D015430:Weight Gain / Q000187:drug effects*
chemical_list: D008043:Linseed Oil