Volume 2, Issue 4 (4-2011)                   rap 2011, 2(4): 49-60 | Back to browse issues page

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University of Mohaghegh Ardabili
Abstract:   (6216 Views)

   This study was conducted to investigate the effects of 3.5% and 7% dietary CLA on blood parameters, body fat storage and correlation of these parameters in broiler chickens. In this study 320 chicks were used in a completely randomized design with 4 treatments and 4 replications. Four isocaloric and isonitrogenous diets formulated containing 7% Soybean oil, 3.5 Soybean oil + 3.5% CLA , 7% CLA and another diet containing palm oil which inevitably had more fat. Serum HDL was not affected by dietary treatments. Chicks fed diets with 7% CLA and 3.5% Soybean oil + 3.5 % CLA had higher Serum TG concentration in compare to the palm oil treatment. Serum cholesterol concentration increased following CLA consumption, but the only significant difference was observed in diet containing 7% soybean oil which significantly decreased serum cholesterol. Soybean oil and CLA decreased abdominal fat pad in compare to the chicks fed palm oil. The soybean oil + CLA diet decreased breast fat content in compare to the palm oil treatment. The notable observation was ineffectiveness of higher dosage of CLA on breast and drumstick fat. Abdominal fat pad showed a negative correlation with serum TG and a positive correlation with serum glucose and HDL. Drumstick fat content had not any significant correlation with serum parameters but breast fat concentration showed a significant correlation with serum TG concentration. This study showed that one of the possible paths on body fat deposits in tissues of broiler birds following CLA administration may be the changes in the production of lipoproteins that responsible for fat transportation in blood circulation. Nonetheless unexpected an increase in dietary CLA dosage did not cause in reduction of body fat.
 
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Type of Study: Research | Subject: Special
Received: 2013/04/21 | Revised: 2019/02/19 | Accepted: 2013/04/29 | Published: 2013/04/29

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