The effect of adding L-carnitine to omega-3 fatty acid diets on productive performance, oxidative stability, cholesterol content, and yolk fatty acid profiles in laying hens

The effects of L-carnitine-loaded solid lipid nanoparticles on performance, antioxidant parameters, and expression of genes associated with cholesterol metabolism in laying hens

“…Surprisingly, LC-SLNs therapies outperformed plain LC in blood total cholesterol and yolk cholesterol concentration. The administration of 100 mg/kg LC-SLNs decreased cholesterol in egg yolks by 25% and blood cholesterol by 16.49%, which is inconsistent with Rouhanipour et al results ( Rouhanipour et al, 2022 ). Supplementing with LC has been shown to decrease a variety of blood metabolites, including liver enzymes, cholesterol, and triglycerides, which the results of this study confirmed previous findings ( Parizadian et al, 2011 ; Awad et al, 2016 ; Fallah and Mirzaei, 2016 ).…”

“…The change in egg production was significant when the hens were given more than 50 mg/kg LC. Rouhanipour et al (2022) observed that 200 mg/kg LC supplementation decreased egg weight while not influencing feed consumption or feed conversion ratio ( Rouhanipour et al, 2022 ). According to previous work, LC supplementation boosted β-oxidation of fatty acids to adenosine triphosphate, which improved energy production ( Madsen et al, 2018 ).…”

The Effect of a Diet Supplemented with Organic Minerals and l-Carnitine on Egg Production and Chemical Composition and on Some Blood Traits of Pheasant Hens (Phasianus colchicus)

“…Simultaneously, in both groups an increase in UFA ω-3 was stated. The observed increased number of laid eggs might be attributed to the role of omega-3 fatty acids in reproductive activities [34,35]. This impact might be affected by the addition of L-carnitine.…”

Colonization of chickens with competitive exclusion products results in extensive differences in metabolite composition in cecal digesta

“…The benefits of carnitine in poultry production have been studied with contradictory results. Although there are reports on the positive role of carnitine for growth promotion, improving the immune system or antioxidant function ( Bhatti et al, 2018 ; Jahanian and Ashnagar, 2018 ; Rouhanipour et al, 2022 ), others reported a minor effect ( Yousefi et al, 2023 ).…”