Comparision of Direct and Indirect Response to Selection for Breast Weight in Japanese Quail
محورهای موضوعی : Camel
1 - Department of Animal Science, Faculty of Agriculture, Lorestan University, Khorram-Abad, Iran
2 - Department of Animal Science, Faculty of Agricultural Science, Payame Noor University, Tehran, Iran
کلید واژه: Japanese quail, inbreeding depression, carcass trait, family selection, founder,
چکیده مقاله :
This study was carried out to investigate the direct and indirect responses to selection for four-week body weight (4 week body (wk BW)) and four-week breast weight (4 week breast weight (wk BRW)) and to determine the genetic contribution of reminder founders to the last generation. A total number of 351 birds were equally allocated to three lines, including two selected lines (S1 and S2 for BW and breast weight, respectively) along with a control (C) line. Total net genetic improvement for BW and BRW in S1 and S2 lines were 31.6, 7.6 and 28.0 and 7.3 g, respectively. Genetic correlations between 4 wk BW and carcass traits (0.85 to 0.95) and phenotypic correlations (0.43 to 0.93) were positively high in S1 and S2 lines. The mean percentage of inbreeding for population and inbred birds in S1 and S2 lines were 0.95, 7.75 and 0.64 and 11.3, respectively. The number of retained founders to the last generation of S1 was more than S2. However, more balance genetic contribution to the last generation was outlined by the founders in S2 line. The BW can be used as a selection criterion to improve the carcass traits because there is a strong correlation between BW and carcass traits, selection for BW is easier to record and also its improvement costs are lower than selection for BRW. Meanwhile, long term response to selection is needed to preserve alleles from the lowest contributed founders.
Balcıoglu M., Kızılkaya K., Yolcu H. and Karabag K. (2007). Analysis of growth characteristics in short-term divergently selected Japanese quail. South Africa J. Anim. Sci. 35, 83-89.
Barker J.S.F. (2001). Conservation and management of genetic diversity: a domestic animal perspective. Canadian J. For. Res. 31, 588-595.
Berg P. (2010). EVA version 1.7.
Bourdon R.M. (2000). Understanding Animal Breeding. Prentice-Hall, Inc. Upper Saddle River, New Jersey.
Brah G.S., Chaudhary M.L. and Sandhu J.S. (2001). Direct and correlated responses to selection for 4-week body weight in two lines of Japanese quails. Arch. Tierz. 44, 99-108.
Caron N., Minvielle F., Desmarais M. and Poste L. (1990). Mass selection for 45-day body weight in Japanese quail: selection response, carcass composition, cooking properties and sensory characteristics. Poult. Sci. 69, 1037-1045.
Falconer D.S. and Mackay T.F.C. (1996). Introduction to Quantitative Genetics. Longman, Essex, UK.
Gaya L., Ferraz J., Rezende F., Mourao G., Mattos E., Eler J. and Michelan Filho T. (2006). Heritability and genetic correlation estimates for performance and carcass and body composition traits in a male broiler line. Poult. Sci. 85, 837-843.
Gilmour A., Cullis B., Welham S. and Thompson R. (2009). ASREML. program user manual. NSW Agriculture, Orange Agricultural Institute, Forest Road, Orange, Australia.
Gjedrem T. (2005). Selection and breeding programs in aquaculture. Springer, Dordrecht, the Netherlands.
Hill W.G. and Caballero A. (1992). Artificial selection experiments. Annu. Rev. Ecol. Evol. Syst. 23, 287-310.
Lacy R.C. (2005). Analysis of founder representation in pedigrees: founder equivalents and founder genome equivalents. Zoo. Biol. 8, 111-123.
Lush J.L. (1947). Family merit and individual merit as bases for selection. Am. Nat. 81, 362-379.
Marks H. (1993). Carcass composition, feed intake, and feed efficiency following long-term selection for four-week body weight in Japanese quail. Poult. Sci. 72, 1005-1011.
Narinc D., Aksoy T. and Karaman E. (2010). Genetic parameters of growth curve parameters and weekly body weights in Japanese quails (Coturnix coturnix japonica). J. Anim. Vet. Advan. 9, 501-507.
Popovic B. and Pym R.A.E. (1998). Reproductive performance in Japanese quail selected for breast meat yield. Pp. 188-191 in Procc. Australian Poult. Sci. Symp., Sydney, Australia.
Ralls K., Harvey P.H. and Lyles A.M. (1986). Inbreeding in natural populations of birds and mammals. Pp. 35-56 in Conservation Biology the Science of Scarcity and Diversity. M.E. Soule, Ed. Sinauer Associates Inc., Sunderland, Massachusetts.
Reddish J.M. (2004). Evaluation of the effects of selection for increased body weight and increased yield on growth and development of Poultry. Ph D. Thesis. OhioState Univ., US.
Sari D.M., Tilki M. and Saatci M. (2011). Genetic parameters of slaughter and carcase traits in Japanese quail (Coturnix coturnix japonica). Br. Poult. Sci. 52, 169-172.
SAS Institute. (2000). SAS®/STAT Software, Release 8. SAS Institute, Inc., Cary, NC. USA.
Shahin K., Shemeis A., Abdallah O. and Saleh K. (2000). Selection index alternatives for increased marketing body weight with minimum concomitant reduction in body bone percentage-recourse to tissue dissection on Japanese quail. Arch. Tierz. 43, 535-543.
Suda Y. and Okamoto S. (2003). Long term selection for small body weight in Japanese quail II. Changes in reproductive traits from 60 to 65th generations. J. Poult. Sci. 40, 30-38.
Varkoohi S., Moradi Shahr-Babak M., Pakdel A., Nejati Javaremi A., Zaghari M. and Kause A. (2010). Response to selection for feed conversion ratio in Japanese quail. Poult. Sci. 89, 1590-1598.
Zhao G., Chen J., Zheng M., Wen J. and Zhang Y. (2007). Correlated responses to selection for increased intramuscular fat in a Chinese quality chicken line. Poult. Sci. 86, 2309-2314.
