Effects of menhaden oil and flaxseed in broiler diets on sensory quality and lipid composition of poultry meat.
1. Three hundred and thirty 1-d-old male broiler chicks from a commercial strain were allocated to 11 dietary treatments comprising combinations of flaxseed at 100 g/kg and menhaden oil (MO) at 7.5 or 15 g/kg. Birds were given the experimental diets 7 or 14 d prior to slaughter. Carcase omega-3 fatty acid profiles and sensory evaluations of different cooked meat portions were carried out. 2. Linolenic acid was preferentially deposited in dark meat and long chain omega-3 fatty acids in white meat. Breast meat sensory quality was not affected in birds given 100 g/kg flaxseed for 14 d (treatment 3), 7.5 g/kg MO for 14 d (treatment 5) or 100 g/kg flaxseed +0.75 g/kg MO for 7 d (treatment 6). In contrast, thigh meat sensory quality decreased in treatments 5 and 6. 3. Feeding flaxseed and MO to birds for just 7 d prior to slaughter resulted in significant omega-3 meat enrichment depending on their dietary concentrations. The linolenic acid and long chain omega-3 fatty acids showed preferential deposition in dark and white meat, respectively, which may affect the sensory quality of various portions differently.
Gonzalez-Esquerra
R
R
University of Guelph, Ontario, Canada.
Leeson
S
S
D000821:Animal Feed; D000818:Animals; D001835:Body Weight; D002645:Chickens / Q000378:metabolism* / Q000502:physiology; D015525:Fatty Acids, Omega-3 / Q000008:administration & dosage / Q000032:analysis / Q000502:physiology*; D005395:Fish Oils / Q000008:administration & dosage*; D019597:Flax / Q000502:physiology*; D008297:Male; D008460:Meat / Q000032:analysis / Q000592:standards*; D009812:Odorants; D010369:Pectoralis Muscles / Q000737:chemistry; D011897:Random Allocation; D013649:Taste; D017962:alpha-Linolenic Acid / Q000008:administration & dosage / Q000502:physiology
D015525:Fatty Acids, Omega-3; D005395:Fish Oils; D017962:alpha-Linolenic Acid; C033266:Menhaden oil