Abstract
The objective of this experiment was to study the effect of dietary supplementation of Coenzyme Q10 on broiler growth rate, carcass characteristics and cost of production. A biological trial was carried out with 270 broiler chicks fed with coenzyme Q10 at 0, 20 and 40 mg/kg of diet at each of the three energy levels. At the end of 42 days growth period the birds were sacrificed and the samples were analysed. Feed intake was comparable in all the energy and CoQ10 combinations, but higher body weight gain and better feed efficiency with less feed cost per kilogram weight gain was observed in high energy group supplemented with 20 mg of CoQ10/kg diet. The dressing percentages, weight of giblet, liver, spleen, abdominal fat, intestinal length were not significantly altered by CoQ10 supplementation. The heart weight, gizzard weight and ascites heart weight (AHI) were significantly decreased due to CoQ10 supplementation. Hence, birds fed with high energy diet supplemented with 20 mg CoQ10 per kg of diet had higher production performance.
Highlights
The growth rate of broilers has increased over the decades as a result of continuous selective breeding by the broiler breeders (Schmidt et al 2009)
Production performance The effect of Coenzyme Q10 (CoQ10) levels and energy levels on the body weight gain, feed intake, feed efficiency and production score at biweekly intervals and overall (0 to 6 weeks) growth period are presented in Tables 3, 4 and 5 respectively
During the 3–4 week’s growth phase, there was no significant difference in body weight gain due to the CoQ10 supplementation at each energy level
Summary
The growth rate of broilers has increased over the decades as a result of continuous selective breeding by the broiler breeders (Schmidt et al 2009). The poultry nutritionist attempt to increase the density of the nutrients in the diet. This leads to increased oxidative stress on the broilers and depresses the growth performance (Shi-bin et al 2007). Oxidative stress occurs when there is an imbalance between the production of oxygen radicals and antioxidants in the body. Reactive oxygen species (ROS) are mainly mitochondrial derived and directly affects the vascular remodeling and causes pulmonary hypertension and growth rate (Bautista-Ortega et al 2010). Broilers fed to an energy dense diet were more susceptible to oxidative stress (Cardoso et al 2010), whereas restricted feeding decreases oxidative damage (Ozkan et al 2010). An early feed restriction has severely affected the growth performance and lipid
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