Economic analysis of the Moghani sheep during the annual production cycle in two different cultivating systems

Document Type : Biodiversity

Authors

Department of Animal Science, University of mohaghegh ardabili, Ardabil, Iran

Abstract

In this research, production, reproductive, managerial and economic characteristics of Moghani sheep breeding during the annual production cycle in nomadic and rural systems were used to identify the traits' performance and economic analysis of both rural and nomadic systems in Ardebil province. In order to estimate the economic value of the traits, the models that describe the production and reproductive conditions at the breeding ground of the sheep breed in the rural and nomadic system and the economic values of the traits were calculated using MATLAB software. The effect of increasing the unit of variation in average of attributes on the revenues and costs of production systems and the resulting economic value showed that in both systems, in the case of an increase in the average traits, the survival rate of the ewe, the pregnancy rate, the number of births per year, the weight of the wool and The weight of milk increases the income, and if the average weight of the alternative increases, it will increase the cost and eventually reduce the income. In nomadic and rural methods, the relative economic coefficients of all traits except the alternative weight trait were similar to those of most of the research carried out. Economic analysis of the system showed that in rural conditions, the income, expenses and profits per head of the ewe per year were 3864702.32, 3293308.57, 571393.75 Rials, in nomadic conditions of income, expenses and profit of the system, respectively, 8134659.38, 11072563.71 and 2937904.33 Rials. In order to investigate the effects of economic and biological variables on economic value, sensitivity analysis was performed. The cost-benefit analysis for each ewe's head was done in the Moghani sheep under the rural system, with the largest share of labor costs and the largest share of income related to the sales of live weight of lambs. While sheep in the nomadic system, the most was the cost of nutrition and the highest income associated with live weight during sales. Also, to study the changes in the factors affecting economic efficiency as a performance index, some of the parameters of the model were changed by 50 percent in the positive and negative directions. It was shown that if the traits change, the survival rate of the ewe, pregnancy rate and milk weight in the direction Positive increases the productivity index, but in the case of weight gain in the positive direction, it decreases productivity.                                                                                                                                

Keywords


  1. Dekkers, J.C.M., 2003. Design and Economics of Animal Breeding Strategies. Iowa State University, Iowa, USA.
  2. Dekkers, J.C.M.;Birke, P.V. and Gibson, J.P., 1995. Optimum linear selection indexes for multiple generation objectives with nonlinear profit functions. Journal of Animal Science. Vol. 610, pp: 75-165.
  3. Gibson, J.P., 1995. An introduction to the design and economics of amimal breeding strategies. Guleph, Ontario, Canada.
  4. Harris, D.L., 1970. Breeding for efficiency in livestock production: Defining the economic objectives. Journal of Animal Science. Vol. 30, pp: 860-865.
  5. Jones, H.E.; Amer, P.R.;  Lewis, R.M. and Emmans, G.S.,  2004. Economic values for changes in carcass lean and fat weight at a fixed age for terminal sire breeds of sheep in the UK. J of Livestock Production Science. Vol. 89, pp: 1-17.
  6. 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. Journal of Small Ruminant Research. Vol. 50, pp: 187-202.
  7. Kosgey,I.S.;VanArendonk,J.A.M.andBaker, R.L., 2004. Economic values for traits in breeding objectives for sheep in the tropics: impact of tangible and intangible benefits.
  8. Lobo, R.N.B.; Pereira, I.D.C.; Faco, O. and McManus, C., 2011. Economic values for production traits of Morada Nova Meat sheep in a pasture based production system in semi-arit Brazil. J of Small Ruminant Research. Vol. 96, pp: 93-100.
  9. Ponzoni, R.W. and Newman, S., 1989. Developing breeding objective for Australian beef cattle production. Journal of Animal Production. Vol. 49, pp: 35-47.
  10. Smith, C.; James, J. and Brascamp, E.W., 1986. On the derivation of economic weights in livestock improvement. Journal of Animal Production. Vol. 43, pp: 545-551.
  11. Wolfova,M.; Wolf, J.; Kvapilik, J. and Kica, J., 2007. Selection for profit in cattle: I. Economic weights for purebred dairy cattle in the Czech Republic. Journal of Dairy Science. Vol. 90, pp: 2442-2455.