Czech J. Anim. Sci., 2006, 51(9):406-415 | DOI: 10.17221/3958-CJAS

Prediction of the meat content of the carcass and valuable carcass parts in French lop rabbits using some traits measured in vivo and post mortem

D. Michalik, A. Lewczuk, E. Wilkiewicz-Wawro, W. Brzozowski
Department of Commodity Science and Animal Improvement, University of Warmia and Mazury, Olsztyn, Poland

The experiment was performed on 60 French lop rabbits raised under extensive conditions and sacrificed at body weight of about 3 kg. It was found that the best indicators of meat weight (g) in rabbit carcasses were body weight, head width and lower thigh length among the traits measured in vivo, and carcass weight, chest girth and thigh circumference among the traits measured post mortem. In vivo prediction of saddle meatiness may be based on body weight, trunk length and thigh length, whereas post-slaughter estimation - on carcass weight, hip circumference and thigh circumference. Total meat weight in the hind half of the carcass may be predicted in vivo on the basis of body weight, head width and lower thigh length, and post mortem - on the basis of carcass weight, chest girth, hip circumference, thigh circumference and pelvic width. Multiple regression equations for meat weight estimation in the whole carcass and its middle and hind part were derived in the study. These equations may be applied in selection work directed towards an improvement in carcass meatiness. They may also be used to evaluate the results of experiments conducted on French lops.

Keywords: rabbits; meat performance; coefficients of correlation; regression equations

Published: September 30, 2006  Show citation

ACS AIP APA ASA Harvard Chicago Chicago Notes IEEE ISO690 MLA NLM Turabian Vancouver
Michalik D, Lewczuk A, Wilkiewicz-Wawro E, Brzozowski W. Prediction of the meat content of the carcass and valuable carcass parts in French lop rabbits using some traits measured in vivo and post mortem. Czech J. Anim. Sci. 2006;51(9):406-415. doi: 10.17221/3958-CJAS.
Download citation

References

  1. Ayyat M.S., Marai I.F.M., El-Sayiad G.M.A. (1995): A trial to grade New Zealand White rabbits for broiler production at marketing and breeding. World Rabbit Sci., 3, 75-84. Go to original source...
  2. Bielański P. (2000): Wpływ warunków środowiskowych na wzrost królików niektórych ras i ich użytkowość rzeźną. Ann. Anim. Sci., 27, 375-393.
  3. Bielański P., Niedźwiadek S., Zając J. (2002): Chów królików. Wyd. Fundacja 'Rozwój SGGW' Warszawa.
  4. Brzostowska U., Lewczuk A., Rymkiewicz J. (1999): Phenotypic correlations between various traits and meat, bone and fat content of valuable parts of rabbit carcasses of White Danish breed. Zesz. Nauk. PTZ, Prz. Hod., 42, 185-194.
  5. Dänicke S., Ahrens P., Strobel E., Brettschneider J., Vicke M., Lengerken G. (2004): Effects of feeding rapeseed to fattening rabbits on performance, thyroid hormone status, fatty acid composition of meat and meat quality traits. Arch. Geflügelk., 68, 15-24.
  6. Łabecka S., Gardzielewska J. (1990): Wpływ krzyżowania międzyrasowego na ich użytkowość rzeźną. Rocz. Nauk. Zoot., 17, 25-40.
  7. Lewczuk A., Rymkiewicz J., Janiszewska M. (1998): Comparison of growth, body measurements and carcass quality of New Zealand White and Danish White rabbits. Anim. Sci. Pap. Rep., 16, 105-112.
  8. Lewczuk A., Rymkiewicz J., Janiszewska M. (1999): The value of various pre- and post-slaughter traits for the estimation of meat deposition in valuable parts of New Zealand White rabbit carcass. Anim. Sci. Pap. Rep., 17, 123-135.
  9. Lewczuk A., Janiszewska M., Mohomet Ayman Al. Saadi, Michalik D. (2000): The utility of certain intravital and post-slaughter traits for the evaluation of carcass tissue composition in Californian rabbits. Natur. Sci., 7, 129- 139.
  10. Lewczuk A., Postek A., Brzozowska W., Michalik D., Janiszewska M. (2001): The value of chosen pre- and post-slaughter traits for the estimation of lean yield in valuable carcass parts of Danish White rabbit. Anim. Sci. Pap. Rep., 19, 141-155.
  11. Lukefahr S., Ozimba C.E. (1991): Prediction of carcass merit from live body measurements in rabbits of four breed-types. Livest. Prod. Sci., 29, 323-334. Go to original source...
  12. Niedźwiadek S. (1980): Zastosowanie równań regresji do oceny zawartości mięsa, kości i tłuszczu w tuszkach królików rasy białej nowozelandzkiej. Rocz. Nauk. Zoot., 7, 171-180.
  13. Niedźwiadek S. (1983): Korelacje fenotypowe i genetyczne między niektórymi cechami użytkowymi królików rasy białej nowozelandzkiej. Rocz. Nauk. Zoot., 10, 37-45.
  14. Niedźwiadek S. (1996): Ujednolicone kryteria badań nad mięsnym użytkowaniem królików. Biul. Inf. Inst. Zoot., 34, 37-47.
  15. Rymkiewicz J. (1997): Phenotypic and genetic parameters of meat performance of New Zealand rabbits. [PhD. Thesis]. Olsztyn University of Agriculture and Technology.
  16. Rymkiewicz J., Lewczuk A. (2000): Values of pre- and post-slaughter traits for estimating meat, fat and bone weight in the carcass of extensively reared New Zealand White rabbits. Anim. Sci. Pap. Rep., 18, 165-182.
  17. Skřivanowá V., Marounek M., Tůmová E., Skřivan M., Laštovková J. (2000): Performance, carcass, yield and quality of meat in broiler rabbits: a comparison of six genotypes. Czech J. Anim. Sci., 45, 91-95.
  18. Tůmová E., Skřivanowá V., Skřivan M. (2003): Effect of restricted feeding time and quantitative restriction in growing rabbits. Arch. Geflügelk., 67, 182-190.
  19. Zając J. (1999): Wpływ masy ubojowej królików na wydajność rzeźną oraz wybrane cechy jakościowe mięsa. Rocz. Nauk. Zoot., 26, 59-72.
  20. Zając J. (2001): Porównanie cech tuczonych, rzeźnych oraz jakość mięsa królików rzeźnych ras i ich mieszańców. Rocz. Nauk. Zoot., 28, 9-23.
  21. Zając J. (2002): Analiza użytkowości rzeźnej królików trzech ras z uwzględnieniem ich różnej masy ubojowej. Rocz. Nauk. Zoot., 29, 49-60.
  22. Zając J. (2003): Wyniki krzyżowania towarowego królików. Rocz. Nauk. Zoot., 30, 25-35. Go to original source...
  23. Zając J. (2004): Wykorzystanie samców ras dużych w krzyżowaniu towarowym królików. Rocz. Nauk. Zoot., 31, 55-65.

This is an open access article distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International (CC BY NC 4.0), which permits non-comercial use, distribution, and reproduction in any medium, provided the original publication is properly cited. No use, distribution or reproduction is permitted which does not comply with these terms.