Effect of divergent selection for the volume of thigh muscles based on computerised tomography on the carcass traits of rabbits

Preliminary results

Authors

  • Szilvia Metzger University of Kaposvár, Faculty of Animal Science, H-7400 Kaposvár, Guba S. u. 40.
  • Zsolt Szendrő University of Kaposvár, Faculty of Animal Science, H-7400 Kaposvár, Guba S. u. 40.
  • Róbert Romvári University of Kaposvár, Faculty of Animal Science, H-7400 Kaposvár, Guba S. u. 40.
  • András Szabó University of Kaposvár, Faculty of Animal Science, H-7400 Kaposvár, Guba S. u. 40.
  • Zsolt Petrási University of Kaposvár, Faculty of Animal Science, H-7400 Kaposvár, Guba S. u. 40.
  • Zoltán Nagy University of Kaposvár, Faculty of Animal Science, H-7400 Kaposvár, Guba S. u. 40.
  • Edit Bíróné Németh University of Kaposvár, Faculty of Animal Science, H-7400 Kaposvár, Guba S. u. 40.
  • István Radnai University of Kaposvár, Faculty of Animal Science, H-7400 Kaposvár, Guba S. u. 40.
  • Zsolt Matics University of Kaposvár, Faculty of Animal Science, H-7400 Kaposvár, Guba S. u. 40.
  • Péter Horn University of Kaposvár, Faculty of Animal Science, H-7400 Kaposvár, Guba S. u. 40.

DOI:

https://doi.org/10.31914/aak.1811

Keywords:

rabbit, computerised tomography, thigh muscles, two-way selection, carcass traits

Abstract

The aim of the study was to examine the efficiency of the selection based on CT measured thigh muscles with divergent selection method. Does of the first generation selected for high or low muscle volume were inseminated with the semen of similarly selected bucks at the same time. At 12 weeks of age 25–25 rabbits of similar body weight were slaughtered and dissected from both progeny groups (L: progenies of the rabbits selected for low volume of thigh muscles; H: progenies of the rabbits selected for high volume of thigh muscles). The gastrointestinal tract weight and its proportion within body weight were 38 g (P < 0.05) and 1.2% (P < 0.001) lo

The aim of the study was to examine the efficiency of the selection based on CT measured thigh muscles with divergent selection method. Does of the first generation selected for high or low muscle volume were inseminated with the semen of similarly selected bucks at the same time. At 12 weeks of age 25–25 rabbits of similar body weight were slaughtered and dissected from both progeny groups (L: progenies of the rabbits selected for low volume of thigh muscles; H: progenies of the rabbits selected for high volume of thigh muscles). The gastrointestinal tract weight and its proportion within body weight were 38 g (P < 0.05) and 1.2% (P < 0.001) lower in H rabbits compared to L animals. Thus, the dressing out percentage in H rabbits was 2% higher
(P < 0.001). The proportion of the hind part within reference carcass was 1.2%
(P < 0.001) higher, while that of the fore part was 0.7% (P < 0.05) lower in group H.
The weight of hindleg meat in H rabbits was 33 g (P < 0.001), while its ratio to reference carcass was 1.2% (P < 0.001) higher than in L animals. Data of the experiment confirmed the efficiency of CT based selection for thigh muscles. Increasing the volume of hindleg muscles, the dressing out percentage improved as well. However, beside carcass traits, it would be interesting to study the productive traits of the progenies of the first and second generations selected divergently as well.

wer in H rabbits compared to L animals. Thus, the dressing out percentage in H rabbits was 2% higher (P < 0.001). The proportion of the hind part within reference carcass was 1.2% (P < 0.001) higher, while that of the fore part was 0.7% (P < 0.05) lower in group H. The weight of hindleg meat in H rabbits was 33 g (P < 0.001), while its ratio to reference carcass was 1.2% (P < 0.001) higher than in L animals. Data of the experiment confirmed the efficiency of CT based selection for thigh muscles. Increasing the volume of hindleg muscles, the dressing out percentage improved as well. However, beside carcass traits, it would be interesting to study the productive traits of the progenies of the first and second generations selected divergently as well.

Author Biography

  • Szilvia Metzger, University of Kaposvár, Faculty of Animal Science, H-7400 Kaposvár, Guba S. u. 40.

    corresponding author
    metzger@mail.atk.u-kaposvar.hu

References

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Nagy, I., Ibañez, N., Romvári, R., Mekkawy, W., Metzger, Sz., Horn, P., Szendrő, Zs. (2006). Genetic parameters of growth and in vivo CT based carcass traits in Pannon White Rabbit. Livest. Sci., (accepted paper) https://doi.org/10.1016/j.livsci.2006.03.009

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Szendrő, Zs., Romvári, R., Milisits, G., Metzger, Sz., Nagy, I., Szabó, A., Petrási, Zs., Repa, I., Horn, P. (2005). Computerised tomography in rabbit breeding. Hungarian Journal of Animal Production. 54. 416–426.

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Published

2006-07-15

Issue

Vol. 10 No. 2 (2006): Acta Agraria Kaposváriensis

Section

Poster Section

License

Copyright (c) 2006 Metzger Szilvia, Szendrő Zsolt, Romvári Róbert, Szabó András, Petrási Zsolt, Nagy Zoltán, Bíróné Németh Edit, Radnai István, Matics Zsolt, Horn Péter

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

How to Cite

Metzger, S., Szendrő, Z., Romvári, R., Szabó, A., Petrási, Z., Nagy, Z., Bíróné Németh, E., Radnai, I., Matics, Z., & Horn, P. (2006). Effect of divergent selection for the volume of thigh muscles based on computerised tomography on the carcass traits of rabbits: Preliminary results. Acta Agraria Kaposváriensis, 10(2), 309-314. https://doi.org/10.31914/aak.1811

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