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    The effects of dietary supplementation of L-carnitine on performance, blood parameters and immune system in broiler turkeys
    (Ankara Univ Press, 2009) Erol, Handan; Yalcin, Sakine
    This experiment was carried out to determine the effects of different levels of L-carnitine (0, 50, 100 and 150 mg/kg) added to the broiler turkey diets oil performance characteristics, some blood parameters and immune system. A total of 48 female poults aged 6 weeks were used in this experiment. They were divided into one control group and three treatment groups each containing 12 female poults. Each group was divided into four replicate groups each containing 3 poults. The diets of the first, second and third treatment groups were supplemented with 50, 100 and 150 mg/kg L-carnitine, respectively. L-carnitine was not added to the diet of control group. The experimental period lasted 10 weeks. At the end of the experiment live weight, live weight gain, feed consumption, feed efficiency, carcass yield, weights and rates of internal organs and abdominal fat, pH value Of Small intestine and total protein, cholesterol, trigliceride, and activities of alanine aminotransferase, aspartate aminotransferase, alkaline phosphatase of blood serum were not affected by different levels of carnitine supplementation to diets. Immune system of female poults was not affected by dietary L-carnitine. The results in this study demonstrated that L-carnitine Supplementation at the levels of 50, 100 and 150 mg/kg to the diets of female poults did not have any significant effects oil performance characteristics, some blood parameters and immune system.
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    Effects of L-carnitine supplementation to the diets containing different levels of energy on performance and some blood parameters of quails
    (Ankara Univ Press, 2007) Yalcin, Sakine; Bugdayci, K. Emre; Oezsoy, Buelent; Erol, Handan
    This experiment was carried out to determine the effects of the usage of L-carnitine in diets with different levels of energy on some productive characteristics and blood parameters of Japanese quail. A total of 204 quail chicks aged one week (Coturnix coturnix Japonica) were used. They were divided into four groups each containing 51 quail chicks. Diets having normal (3000 kcal/kg) and low (2700 kcal/kg) metabolizable energy level were supplemented with 0 and 100 mg/kg L-carnitine. Diets were formulated to be isonitrogenic. The experimental period lasted five weeks. L-carnitine supplementation to the diets having normal energy level did not affect the live weight at the end of the experiment, total live weight gain, feed intake per one kg live weight gain and carcass yield but increased total feed intake (p<0.01) and decreased serum cholesterol level (p<0.01). The values of live weight at the end of the experiment were increased (p<0.01) and feed intake per one kg live weight gain (p<0.01), the serum levels of cholesterol (p<0.01) and triglyceride (p<0.05) were decreased by L-carnitine supplementation to the low energy diets. As a result, L-carnitine supplementation to the diets of low energy level have positive effects on the performance and decrease the levels of serum cholesterol and triglycerides of Japanese quails.