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International Journal of Poultry Science

.: Home > International Journal of Poultry Science > 2010 > Volume 9 Number 10 > K.E. Nouboukpo , K. Tona , B. Kamers , N. Everaert ,H. Willemsen 1 1 2 2 2, O.M. Onagbesan2, M. Gbeassor1 and E. Decuypere2

Effects of in ovo Administration of L-carnitine on Hatching Events and Juvenile Performance of Layer-type Chick

K.E. Nouboukpo , K. Tona , B. Kamers , N. Everaert ,H. Willemsen 1 1 2 2 2, O.M. Onagbesan2, M. Gbeassor1 and E. Decuypere2
1Laboratory of Poultry Sciences, Faculty of Sciences, University of Lome, B.P. 1515, Lome, Togo 2Department of Animal Physiology, University of Agriculture, Abeokuta, Nigeria 3Laboratory for Physiology and Immunology of Domestic Animals, Department of Biosystems, K.U. Leuven, Belgium
Abstract :

The effects of in ovo injection of L-carnitine on hatchability and juvenile performance of 360 layertype chicks were investigated. Fertilized eggs were injected in air chamber with L-carnitine (500 and 1000 ìmol) dissolved in 0.9% of Saline (NaCl) at d 18 of incubation. Two control groups (non-injected and injected
with 0.9% of Saline were also included. Hatched chicks was recorded after every 4 h, beginning at 490 h of
incubation and ending at 514 h, for incubation length and hatching spread determination. At the end of
incubation, hatched chicks were recorded according to treatment for determination of hatchability. At 3, 7 and 14 d post-hatch, chick body weight (BW) and morbidity were recorded. Also, at d 3 and 7 post-hatch, 14 birds from each of 2 replicate groups within each treatment were used for intestine and yolk sac weight
determination. Results indicate that BW, hatchability, or relative intestine weights were not affected by
treatment. However, incubation length was longer while hatching spread was shorter in L-carnitine groups
compared to control groups. Yolk sac relative weight was decreased by treatment with L-carnitine (P < 0.05). Also, the percentage of chicks showing morbidity sign was lower in L-carnitine treated groups from d 7 onwards. The results of the present study suggest that in ovo injection of L-carnitine at d 18 of incubation
delayed hatching tim

Keywords :
Layer chick, L-carnitine, hatchability, juvenile performance

Date Deposited : 28 Jun 2011 11:28

Last Modified : 28 Jun 2011 11:28

Official URL: http://www.pjbs.org/ijps/ijps.htm

Volume 9, Number 10, - 2010 , ISSN 1682-8356

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