Approaches to formulating practical breeding objectives for animal production systems |
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| Authors: | H M Nielsen P R Amer T J Byrne |
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| Institution: | 1. Department of Breeding and Genetics, Nofima – Norwegian Institute of Food, Fisheries and Aquaculture Research, ?s, Norwayhanne.nielsen@nofima.no;3. AbacusBio Limited, Dunedin, New Zealand |
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| Abstract: | AbstractThis review paper provides an overview of the role of breeding objectives in livestock industries. The analyst developing a breeding objective must use the many and varied tools available in an appropriate theoretical context to quantify the benefits of alternative trait changes. The development in tools for deriving economic values has been from simple profit equations to detailed bio-economic models simulating the whole production system or industry. The importance of including the perspective of the stakeholders is also stressed. Stakeholder perspectives can be considered by using stated preference methods such as choice experiments. Also desired gain index or selection indices can be used in combination with profit equations or bio-economic models to adjust for undesirable genetic changes in breeding objective traits. This review shows that defining appropriate breeding objectives to account for the perspectives of different key stakeholders requires a multi-disciplinary approach. |
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| Keywords: | Breeding economic values animal |
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