at 9-13 d of age , rabbit pups receiving the carnitine-free formula had lower concentrations of total , free and acylcarnitine in plasma and urine , as well as lower total acid soluble carnitine concentrations in liver , muscle , heart and brown adipose tissue than those receiving the same formula supplemented with l-carnitine .
C0007258
carnitine
C0087163
l-carnitine