Effect of Dietary L-Carnitine Supplementation with Animal Fat on Carcass Characteristics of Broiler Chicken

Effects of L-carnitine supplementation in diets of broiler chickens

“…Khatibjoo et al (2016) investigated the effects of L-carnitine and butyric acid on 192 broiler chickens of Ross 308 and reported that the chickens fed by a diet containing 125 mg/kg of L-carnitine and 2 g/kg of butyric acid had a lower feed intake and a better feed conversion ratio relative to the control group. In the study by Murali et al (2015), the application of 900 mg/kg of L-carnitine in the diet of broiler chickens strain Cobb did not have any effect on yield. used two levels of L-carnitine (0 and 50 mg/kg) and 2 levels of ascorbic acid (0 and 50 mg/kg) in drinking water of broiler chickens under different thermal regimes.…”

“…Live weight increase 40 mg/kg Kidd et al, 2009 Live weight increase and improved feed conversion ratio 1 ml /1.2 L Hrncar et al, 2015 Improved feed intake and increased weight in the first three grower weeks 50 mg/kg No significant effect on performance traits 25, 50, 75, 100 mg/kg Xu et al, 2003 No significant effect on performance traits 200 mg/kg Khajali and Khajali, 2014 No significant effect on performance traits and positive effect on ascites reduction 100 mg/kg Wang et al, 2013 Weight increase in grower period and whole period decreased feed intake and decreased feed conversion ratio in the finisher period 150, 300, 450 , 600 mg/kg Parsaeimehr et al, 2013 No significant effect on performance traits 100 mg/kg Shirali et al, 2015 Increased feed intake, weight gain increase, and reduced feed conversion ratio 125 mg/kg Rajabzadeh-Nesvan et al, 2013 No significant effect on performance traits 100 mg/kg Arslan and Tufan, 2018 Increased feed intake and reduced feed conversion ratio 250 mg/kg Rezaei et al, 2007 Bodyweight increase and carcass cooking performance 125 mg/kg Taraz and Dastar, 2008 Weight increase, feed intake decrease and no significant effect on the feed conversion ratio 100 , 200 mg/kg Kheirkhah et al, 2009 No significant effect on performance traits 50 mg/kg DarsiArani et al, 2010 Increasing weight and improving European production efficiency, decreasing feed consumption 375 mg/kg Akbari Azad et al, 2010 No significant effect on performance traits 125, 250 mg/kg Norreh et al, 2015 Improving live weight and feed conversion ratio in the grower and finisher periods 120 mg/kg Jalali et al, 2015 Live weight increase, improved feed consumption and feed conversion ratio 100 mg/kg Fallah et al, 2016 Improving performance 500, 1000 mg/kg Nouboukpo et al, 2010 Increased live weight, feed intake and improved feed conversion ratio 400, 600, 800 mg/kg MehdizadehTaklimi et al, 2015 Increased feed intake and improved feed conversion ratio 500 mg/kg Rehman et al,2017 No significant effect on performance traits 900 mg/kg Murali et al,2013 Decreased feed intake and improved feed conversion ratio 125 mg/kg+2 g Butyric acid Khatibjoo et al, 2016 No significant effect on performance traits 900 mg/kg Murali et al, 2015 Improved live weight, no significant effect on feed conversion ratio and water and feed consumption 500 mg/kg Increased live weight and decreased feed conversion ratio 200, 30...…”

“…Fujimoto et al (2020) showed that L-carnitine consumption has no significant effect on the carcass characteristics of broilers. Murali et al (2015) examined the effect of dietary supplement with L-carnitine (900 mg/kg) and animal fat (5%) on the carcass characteristics of broiler chickens. The results showed that the least abdominal fat was achieved in chicken treated with L-carnitine supplement.…”

“…Positive effect on reducing abdominal fat and no effect on carcass weight and internal organs 900 mg/kg Murali et al, 2015 Reducing abdominal fat, improving the performance of leg and breast muscles 25, 50 mg/kg Xu et al, 2003 Reduced abdominal fat and no effect on carcass characteristics 300 mg/kg BabazadehAghdam et al, 2015 Positive effect on abdominal fat, weights of heart, liver and gizzard 1 mL/1.2 L Hrncar et al, 2015 No significant effect on carcass characteristics 250 mg/kg Rezaei et al, 2007 No significant effect on carcass weight and weight of abdominal fat 50 mg/kg No significant effect on carcass traits and content of abdominal fat 150 mg/kg Daskiran and Teeter, 2001 No significant effect on carcass and breast, positive effect on abdominal fat 200 mg/kg Khajali and Khajali, 2014 Increasing the relative weight of carcass, thigh and significant decrease of abdominal cavity fat, no effect on the weight of bursa of Fabricius, spleen, heart and liver 300 mg/kg Parsaeimehr et al, 2014b No effect on the percentage of breast, thigh, liver, gizzard, pancreas and significant decrease of abdominal fat 50 , 100 mg/kg Shirali et al, 2015 Increased weights of carcass and internal organs 150, 300 mg/kg L-carnitine + 2 g / kgGemfibrozil Farrokhyan et al, 2011 No significant effect on the weight of internal organs and a positive effect on reducing carcass fat 125 mg/kg Rajabzadeh-Nesvan et al, 2013 Improving breast percentage and no significant effect on abdominal fat 250 mg/kg Khatibjoo et al, 2016 Positive effect on carcass weight and reducing abdominal fat 100 mg/kg L-carnitine+ 100 mg/kgChitosan Oligosaccharide Arslan and Tufan, 2018 Increasedbreast meat and liver weight and reduced abdominal fat and fat of breast meat 250 mg/kg Rezaei et al, 2007 Reduced-fat in thigh and carcass and also abdominal fat 50 mg/kg DarsiArani et al, 2010 Positive effect on increasing weights of heart, gizzard, spleen, bursa of Fabricius and reducing abdominal fat 10 mg/kg + 100 mg/ kgterbutaline Fallah et al, 2016 Reduced level of carcass ash, no significant effect on mean crude protein orcarcass fat content 400, 600, 800 mg/kg MehdizadehTaklimi et al, 2015 Reduced abdominal fat 500 mg/kg Rehman et al, 2017 Reduced abdominal fat 50 mg/kg Khadem et al, 2006 Reduced abdominal fat 300 mg/kg Parsaeimehr et al, 2014a Positive effect on improving carcass quality 150, 200 mg/kg JafariGolrokh et al, 2016…”

“…150, 300, 450, 600 mg/kg Parsaeimehr et al, 2013 Reduced triglyceride, cholesterol, LDL and VLDL, increased albumin and globulin levels 300 mg/kg Parsaeimehr et al, 2014b Significant and positive effects on blood triglyceride concentration 150, 300, 450, 600mg/kg Shirali et al, 2015 No significant effect on total serum cholesterol and triglyceride levels 100 mg/kg Corduk et al, 2007 Increased triglyceride levels throughout the course 100 mg/kg Azadmanesh and Jahanian, 2014 No effect on the concentration of cholesterol or blood triglycerides 100 , 200 mg/kg Kheirkhah et al, 2009 No effect on blood parameters 125, 250 mg/kg Taraz and Dastar, 2008 Increased metabolism and facilitatedthe oxidation of fatty acids 900 mg/kg Murali et al, 2015 Effect of L-carnitine on the microbial flora of broiler chickens Hosseintabar et al (2013) investigated the effect of L-carnitine, methionine-lysine on themicrobial flora of broiler cecum. In that study, L-carnitine (0, 75 and 150 mg/kg), methionine-lysine (0, 15 and 30%) were used at three levels.…”