Defining Economic Values of Important Traits in One Hump Camel in Desert Areas Rearing System
الموضوعات :م. وطن خواه 1 , ع. شفیع نادری 2 , م.ر. مفیدی 3 , ع.ا. قره داغی 4 , م.ع. عباسی 5
1 - Department of Animal Science Research, Chaharmahal and Bakhtiari Agricultural and Natural Resources Research and Education Center, Agricultural Research Education and Extension Organization (AREEO), Shahrekord, Iran
2 - Department of Animal Science Research, Yazd Agricultural and Natural Resources Research and Education Center, Agricultural Research Education and Extension Organization (AREEO), Yazd, Iran
3 - Department of Animal Science Research, Yazd Agricultural and Natural Resources Research and Education Center, Agricultural Research Education and Extension Organization (AREEO), Yazd, Iran
4 - Department of Animal Biotechnology, Animal Science Research Institute of Iran (ASRI), Agricultural Research Education and Extension Organization (AREEO), Karaj, Iran
5 - Department of Animal Biotechnology, Animal Science Research Institute of Iran (ASRI), Agricultural Research Education and Extension Organization (AREEO), Karaj, Iran
الکلمات المفتاحية: camel, desert areas, breeding objective, economic weight,
ملخص المقالة :
In this study production, reproduction, population, management and economic parameters resulted from recording of 7 flocks with size 57 to 400 and 721 heads of camels in a cycle of reproduction, during three years from 2011 to 2013 were used to find out of the economic values of important traits in one hump camel in desert areas rearing system. The economic traits that appeared in profit equation were durability, reproduction and production traits. The economic values, economic weights and the relative importance of traits estimated by increasing one unit and one genetic standard deviation of each trait, using maximizing profit, maximizing efficiency and minimizing cost situations. The results showed that from total annual revenue in each camel (294.10 US$), 66% accounted for sale of calf and 34% resulted from the sale of culling camels. The total annual cost in each camel (72.95 US$), feed, labour and management, facilities, drug and treatment and interest of investment accounted by 40.23%, 34.49%, 7.18%, 1.42% and 16.67%, respectively. The average annual profit and profit to cost ratio in each camel were equal to 221.15 US$ and 3.03, respectively. Relative importance of different group of traits for average of the herds were 58.44% for durability traits (survival rate in camel 14.31%, survival rate in calf to weaning age 34.74% and longevity of camel 9.39%), 24.33% for reproduction traits (conception rate 14.31%, calving interval -8.99%, and age at first calving -1.03%) and 17.23% for production traits (calf weaning weight 13.60%, weight of female replacement -1.09% and weight of camel 2.53%). Relative importance of durability traits resulted from maximizing efficiency and minimizing cost decrease steadily and added to the relative importance of reproduction and production traits. The estimated relative importance of different traits got in this study, could be used to form multiple trait selection indices to one hump camel breeding programs in desert areas rearing system.
Bedier N.Z., Younis A., Galal E.S.E. and Mokhtar M. (1992). Optimum ewe in desert Barki sheep. Small Rumin. Res. 7, 1-7.
Clarke J.N., Waldron D.F. and Rae A.L. (1991). Selection objectives and criteria for terminal lamb sires. Proc. Assoc. Advmt. Anim. Breed. Genet. 9, 265-271.
Falconer D.S. and Mackay F.C. (1996). Introduction to Quantitative Genetics. Addison Wesley Longman, Harlow, United Kingdom.
FAO. (2014). Food and Agriculture Organization of the United Nations (FAO), Rome, Italy.
Goddard M.E. (1998). Consensus and debate in the definition of breeding objectives. J. Dairy Sci. 81(2), 6-18.
Hazel L.N. (1943). The genetic basis for constructing selection indexes. Genetics. 28, 476-490.
Hermas S.A. (1998). Genetic improvement and the future role of the camel in the Arab world: Problems and opportunities. Proc. Ann. Meet. Anim. Prod. 2, 56-68.
Kosgey I.S., Van Arendonk J.A.M. and Baker R.L. (2003). Economic values for traits of meat sheep in medium to high production potential areas of the tropics. Small Rumin. Res. 50, 187-202.
Pitchford W.S. (2001). Improving feed efficiency of beef cattle: What lessons can be learnt from other species? Pp. 19-28 in Proc. Feed Efficiency Workshop, Armidale, Australia.
Ponzoni R.W. (1986). A profit equation for the definition of the breeding objective of Australian Merino sheep. J. Anim. Breed. Genet. 103, 342-357.
Rahimi S.M., Rafat S.A., Shoja J. and Alijani S. (2015). Calculating economic weights for growth, reproduction and wool traits in Makui sheep breed by Ecoweight software. Biotechnol. Anim. Husband. 31, 63-72.
Salehi M. and Gharahdaghi A.A. (2013). Camel Production Potential and Recent Research in Iran. Available at: http://agris.fao.org/agris-search.
Simenew K., Dejen T., Tesfaye S., Fekadu R., Tesfu K. and Fufa D. (2013). Characterization of camel production system in Afar pastoralists, North East Ethiopia. Asian J. Agric. Sci. 5(2), 16-24.
Smith C., James J.W. and Brascamp E.W. (1986). On the derivation of economic weights in livestock improvement. Anim. Prod. 43, 545-551.
Tefera M. and Gebreah F. (2001). A study on the productivity and diseases of camels in eastern Ethiopia. Trop. Anim. Health Prod. 33(4), 265-274.
Vatankhah M. and Akhondi A. (2015). The comparison of economic values and relative emphasis of some traits in Lori-Bakhtiari sheep resulted from different ways. Anim. Sci. J. (Pajouhesh and Sazandegi). 106, 71-82.
Vatankhah M. and Faraji Nafchi M. (2016). Determination of economic values of important traits for Holstein cows in Chaharmohal-va-Bakhtiari province with different levels of milk production. Anim. Sci. J. (Pajouhesh and Sazandegi). 110, 17-30.
Weller J.I. (1994). Economic Aspects of Animal Breeding. Chapman and Hall, London, United Kingdom.
