Abstract
Iranian buffalo plays a critical role in supplying a portion of the income and the necessities of the rural population. The first step to design a breeding program is difinition of breeding goal (BG), a linear combination of breeding values for various traits and their economic values (EV). The current study was aimed at determining EVs for important traits of Iranian buffaloes, namely milk yield (MY), milk fat (MF), age at the first calving (AFC), and calving interval (CI), as well as at estimating the genetic response of applying various types of selection indices. Economic and management data of 50 buffalo herds from various main regions of buffalo rearing in Iran were collected. The EVs were estimated using a simple profit function. Five selection indices were constructed by combining information on various traits. The EVs for BG traits of MY, MF, AFC, and CI were 0.18, 4.66, − 0.36, and − 1.87 US$, respectively. The highest predicted genetic gain in BG was 16.95 and came from applying the selection index that included all traits. The smallest genetic gain (4.93) was predicted for the index with only AFC included. Predicted genetic gain from an index that included production traits and AFC as a reproduction trait (16.9) was higher than that from the index with only production traits (16.15). Results showed that inclusion of reproductive traits in the selection index had a positive effect on genetic gain for breeding goal.
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The authors are grateful to the owners of the buffalo herds for providing needed data and information.
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The authors received financial support from the University of Guilan.
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Safari, A., Shadparvar, A.A., Ghavi Hossein-Zadeh, N. et al. Economic values and selection indices for production and reproduction traits of Iranian buffaloes (Bubalus bubalis). Trop Anim Health Prod 51, 1209–1214 (2019). https://doi.org/10.1007/s11250-019-01811-7
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DOI: https://doi.org/10.1007/s11250-019-01811-7