Simulating economic values of a genetic improvement program for Australian farmed saltwater crocodiles
2007
Gray, Emily M. | Ahmadi-Esfahani, Fredoun Z. | Isberg, Sally R.
In genetic improvement programs, candidates for breeders are ranked by the profitability of their offspring, expressed as a weighted sum of the genetic gain from selection. In this paper, we estimate the economic values of a genetic improvement program for Australian farmed saltwater crocodiles. A bioeconomic profit function for a representative breeding pair is used to determine the optimal slaughter age following genetic improvement in each selection objective. The results indicate that estimated farm profitability increases by nearly $A111 for a 1-week reduction in juvenile slaughter age, $A78 for a 1 per cent increase in the proportion of first-grade skins produced, and $A33 for an increase in the number of viable hatchlings per clutch. The implications of the analysis for the Australian crocodile industry and the limitations of the research are explored.
显示更多 [+] 显示较少 [-]