Effects of menhaden oil and flaxseed in broiler diets on sensory quality and lipid composition of poultry meat

Abstract

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.

Effect of fish oil and vitamin E in the diet on the fatty acid composition of breast meat in broiler chickens

“…The effect of including FO into the diet on increasing the EPA and DHA contribution to the lipid fraction of breast meat is in agreement with the reports of Pinchasov and Nir (1992) and Gonzales-Esquerra and Leeson (2000). Our results may suggest that the minimal dietary level effective for EPA and DHA content in meat lipids is 5 g FO/kg.…”

The Performance and Characteristics of Carcass and Breast Meat of Broiler Chickens Fed Diets Containing Flaxseed Meal

“…Also, Shen and Chavez (2003) found that pelleting improved feed intake and growth of broilers compared with birds fed whole, ground, or autoclaved FS at 100g/kg diet. Gonzalez-Esquerra and Leeson (2000) reported that roosters had higher AMEn values than those of broiler chickens (3560-3654 vs 2055-2118 kcal/kg for rooster vs broiler birds, respectively) when diets containing 100 g FSM/kg diet were fed. Differences in the preparation of FS or FSM and age of birds among various studies may have contributed to differences in the performance of chickens.…”

Feeding flaxseed enhances deposition of omega-3 fatty acids in broiler meat portions in different manner

“…Various literature data have demonstrated that feeding flaxseed-containing diets to broiler chickens can modify the n-3 fatty acid contents of their meat. Although the increase in meat ALA is a gradual process (Lo´pez-Ferrer et al 1999), feeding 10% of flaxseed for 14 d under commercial conditions before slaughter has been shown to increase n-3 fatty acid deposition and thus may minimize the cost of n-3-enriched meat production (Gonzalez-Esquerra and Leeson 2000). Additional research in this area is warranted to further clarify the optimum inclusion rate and feeding time of flaxseed in order to achieve a steady production of n-3-enriched meat products and to minimize diet cost and any antinutritive effects.…”