Economic values for production and functional traits of Small East African goat using profit functions
Economic values for production traits (milk yield, MY, g; 12-month live weight, yLW, kg; consumable meat percentage, CM, %) and functional traits (mature doe live weight, DoLW, kg; mature buck live weight, LWb, kg; kidding frequency, KF; pre-weaning survival rate, PrSR, %; post-weaning survival rate, PoSR,%; doe survival rate, DoSR, %; and residual feed intake, RFI, kg) were estimated using profit functions for the Small East African goat. The scenario evaluated was a fixed flock size, and the resultant economic values (Kes per doe per year) were 34.46 (MY), 62.35 (yLW), 40.69 (CM), 0.15 (DoLW), 2.84 (LWb), 8.69 (KF), 17.38 (PrSR), 16.60 (PoSR), 16.69 (DoSR) and −3.00 (RFI). Similarly, the economic values decreased by −14.7 % (MY), −2.7 % (yLW), −23.9 % (CM), −6.6 % (DoLW), −98 % (LWb), −8.6 % (KF), −8.2 % (PrSR), −8.9 % (PoSR), −8.1 % (DoSR) and 0 % (RFI) when they were risk rated. The economic values for production and functional traits, except RFI, were positive, which implies that genetic improvement of these traits would have a positive effect on the profitability in the pastoral production systems. The application of an Arrow-Pratt coefficient of absolute risk aversion (λ) at the level of 0.02 resulted in a decrease on the estimated economic values, implying that livestock keepers who were risk averse were willing to accept lower expected returns. The results indicate that there would be improvement in traits of economic importance, and, therefore, easy-to-manage genetic improvement programmes should be established.
KeywordsBreeding goal Economic values Small East African goat Pastoral production systems
- Campos, G.S., Neto, B.J., Oaigen, R.P., Cardoso, F.F., Cobuci, J.A., Kern, E.L., Campos, L.T., Bertoli, C.D., McManus, C.M., 2014. Bioeconomic model and selection indices in Aberdeen Angus cattle, Journal of Animal Breeding and Genetics, Article first published online on 20th January 2014, DOI: 10.1111/jbg.12069.
- DAGRIS, 2013. Domestic Animal Genetic Resources Information System (DAGRIS). In: Kemp S, Mamo Y, Asrat Y, Dessie T (Eds.), International Livestock Research Institute, Addis Ababa, Ethiopia. Last retrieved from http://www.dagris.ilri.cgiar.org on 24th February, 2014.
- MoLD, 2012. Ministry of Livestock Development, Animal Production Division Annual Report for 2011, Nairobi, Kenya, 98 pp.Google Scholar
- Republic of Kenya, 2013. Consumer price index and inflation rates. Kenya National Bureau of Statistics, Nairobi, Kenya. Last retrieved from http://www.knbs.or.ke/ on 24th February, 2014.