Czech J. Anim. Sci., 2004, 49(12):517-523 | DOI: 10.17221/4339-CJAS

The effect of carnitine on hatching rate and metabolic profile of blood in breeding layers

J. Thiemel, P. Jelínek
1 , P. J 2 1Agricultural Co-operative, Hlučín, Czech Republic
2 Mendel University of Agriculture and Forestry, Brno, Czech Republic

We examined the effect of orally administered L-carnitine (at a dose of 30 mg per kg of feeding mixture) on egg hatching and some haematological and biochemical parameters of blood plasma in COBB 500 breeding layers of meat type. The experimental results confirmed a positive effect of L-carnitine, which increased the hatching rate significantly (P ≤ 0.05) by 8.89% as compared to the control. This positive effect resulted from a highly significant (P ≤ 0.01) decrease in the number of unfertilized eggs in experimental layers (4.44%), as compared to the control (12.2%). Haematological tests such as total counts of erythrocytes and leukocytes showed no differences between control and experimental layers. However, the average levels of haematocrit and haemoglobin in experimental layers were significantly lower (P ≤ 0.01) (0.31 l/l and 85.67 g/l) in comparison with the control (0.33 l/l and 89.92 g/l). Biochemical examination of the samples of blood plasma collected from experimental layers after the administration of L-carnitine revealed higher levels of glucose and magnesium and lower levels of total protein, cholesterol, AST, calcium and phosphorus, as compared to the control. The differences in the average levels of the monitored biochemical parameters between control and experimental layers were found highly significant (P ≤ 0.01). The results provide new knowledge of the effect of L-carnitine on the metabolism of layers. These results are important not only from the scientific aspect, they are also of practical importance and can be used to formulate diets for breeding layers in order to enhance reproduction.

Keywords: layers; L-carnitine; reproduction; haematological and biochemical parameters

Published: December 31, 2004  Show citation

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Thiemel J, Jelínek P. The effect of carnitine on hatching rate and metabolic profile of blood in breeding layers. Czech J. Anim. Sci. 2004;49(12):517-523. doi: 10.17221/4339-CJAS.
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    References

    1. Baumgartner M. (1998): Boars react positively to L-carnitine supplements. Int. Pig Topics, 13, 32.
    2. Deana R., Rigoni F., Francesconi M. (1989): Effect of carnitine and L-aminocarnitine on calcium transport, motility and enzyme release from ejaculated bovine spermatozoa. Biology of Reproduction, 41, 949-955. Go to original source... Go to PubMed...
    3. Jeřábek S., Suchý P., Illek J., Straková E., Zelenka J. (1993): Haematological and some biochemical parameters of the blood of hens with damaged and integral shells. Živoč. Výr., 38, 145-151.
    4. Leibetseder J. (1995): Studies on the effects of L-carnitine in poultry. Arch. Anim. Nutr., 48, 97-108. Go to original source... Go to PubMed...
    5. Neuman S.L., Lin T.L., Hester P.Y. (2002): The effect of dietary carnitine on semen traits of White Leghorn roosters. Poultry Sci., 81, 495-503. Go to original source... Go to PubMed...
    6. Rabie M.H., Szilagyi M., Gippert T. (1997): Effects of dietary L-carnitine on the performance and egg quality of laying hens from 65-73 weeks of age. Brit. J. Nutr., 78, 615-623. Go to original source... Go to PubMed...
    7. Straková E., Večerek V., Suchý P., Křesala P. (2001): Red and white blood-cell analysis in hens during the laying period. Czech J. Anim. Sci., 46, 388-392.
    8. Suchý P., Ingr I., Straková E. (1995): A relationship between cholesterol concentrations in eggs and blood plasma of hens (in Czech). Živoč. Výr., 40, 11-14.
    9. Suchý P., Straková E., Hrubý A. (1999): Variations in cholesterol concentrations in the blood plasma of hens throughout the laying period (in Czech). Czech J. Anim. Sci., 44, 109-111.
    10. Suchý P., Straková E., Večerek V., Šterc P. (2001): Biochemical studies of blood in hens during the laying period. Czech J. Anim. Sci., 46, 383-387.
    11. Suchý P., Straková E., Jarka B., Thiemel J., Večerek V. (2004): Differences between metabolic profiles of eggtype and meat-type hybrid hens. Czech J. Anim. Sci., 49, 289-294. Go to original source...
    12. Tůmová E., Härtlová H., Ledvinka Z., Fučíková A. (2004): The effect of digitonin all egg quality the level of egg cholesterol and biochemical and haematological parameters in laying hens. Czech J. Anim. Sci., 49, 33-37. Go to original source...
    13. Večerek V., Voslářová E., Straková E., Suchý P. (2003): Comparing effects of feed with protein of animal and plant origin on the profile of metabolism and efficiency of egg-laying hens (in Czech). Krmiva, 45, 27-33.

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