CARCASS YIELD AND SENSORIAL ANALYSIS OF MEAT FROM BROILER CHICKEN FED WITH TILAPIA BYPRODUCTS MEAL

There are several ingredients that can replace those commonly used in the manufacture of animal ration in order to reduce production costs, as tilapia by products meal. However, as byproducts, more studies should be done to achieve the exact effects over the final product. An experiment was carried out aiming at evaluate the effects of the inclusion of five different levels (0%, 2%, 4%, 6% and 8%) of tilapia (Oreochromis niloticus) byproducts meal (TM) on poultry diets on carcass yield and sensory characteristics of broiler chicken meat. 480 one day old chicks, Cobb strain, were used to set the experiment with five treatments arranged in completely randomized design, with six replicates, and 16 birds per experimental unit. At the end of the experiment (42 days), the carcass yield parameters, breasts, drumsticks, thighs, wings, relative weight of the liver, and percent of abdominal fat were evaluated. A sensorial test of the meat was performed by 45 non-trained testers. The samples were evaluated using a structured hedonic scale, comprising nine steps to characterize the following senses: aroma, flavor, color, texture and whole quality. The addition of 8% TM to the diet fed to broiler chickens during total rearing period (1 to 42 days) is feasible without altering yield and sensorial quality of the meat.

[1]  .. M.A.Maigualema,et al.  The Effect of Feeding Elevated Levels of Tilapia (Oreochromus niloticus) By-product Meal on Broiler Performance and Carcass Characteristics , 2003 .

[2]  D. P. Smith,et al.  The relationship between raw broiler breast meat color and composition. , 2002, Poultry science.

[3]  M. Szilágyi,et al.  Effects of L-carnitine supplementation of diets differing in energy levels on performance, abdominal fat content, and yield and composition of edible meat of broilers , 1998, British Journal of Nutrition.

[4]  G. S. Ojewola,et al.  Comparative Utilization of Three Animal Protein Sources by Broiler Chickens , 2005 .

[5]  E. Baéza,et al.  Effects of intramuscular fat levels on sensory characteristics of duck breast meat. , 2006, Poultry science.

[6]  S. Issanchou,et al.  Consumer expectations and perceptions of meat and meat product quality. , 1996, Meat science.

[7]  C. López-Bote,et al.  Abdominal fat deposition and fatty acid synthesis are lower and beta-oxidation is higher in broiler chickens fed diets containing unsaturated rather than saturated fat. , 2000, The Journal of nutrition.

[8]  F. Leenstra Effect of age, sex, genotype and environment on fat deposition in broiler chickens—A review , 1986 .

[9]  Ioannis S. Arvanitoyannis,et al.  Fish industry waste: treatments, environmental impacts, current and potential uses , 2008 .

[10]  Chen‐Huei Huang,et al.  Lipid peroxidation in sarcoplasmic reticulum and muscle of tilapia is inhibited by dietary vitamin E supplementation , 2004 .

[11]  E. Esteve-Garcia,et al.  Dietary fatty acid profile modifies abdominal fat deposition in broiler chickens. , 2001, Poultry science.

[12]  H. Rostagno Tabelas brasileiras para aves e suínos : Composição de Alimentos e Exigências Nutricionais , 2000 .

[13]  C. Parsons,et al.  Dietary formulation with meat and bone meal on a total versus a digestible or bioavailable amino acid basis. , 1998, Poultry science.

[14]  Irenilza de Alencar Nääs,et al.  Variables impacting poultry meat quality from production to pre-slaughter: a review , 2006 .

[15]  A. Gernat,et al.  The effect of using different levels of tilapia by-product meal in broiler diets. , 2002, Poultry science.

[16]  J. Arnau,et al.  Descriptive sensory analysis of meat from broilers fed diets containing vitamin E or beta-carotene as antioxidants and different supplemental fats. , 2001, Poultry science.

[17]  C. Tucker Low‐density silver carp Hypophthalmichthys molitrix (Valenciennes) polyculture does not prevent cyanobacterial off‐flavours in channel catfish Ictalurus punctatus (Rafinesque) , 2006 .

[18]  I. Nir,et al.  Effect of dietary concentrations of fat and energy on fat deposition in broilers divergently selected for high or low abdominal adipose tissue. , 1990, British poultry science.