| Although they may not be eligible to be in the main studbook, half-breds may receive registration papers as half-breds and be eligible for year-end breed awards. |
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| The studbook is kept by the South African Studbook and organization who keep studbooks for all stud animals. |
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| The match was made via the International Species Studbook, which is a database for all captive animals and shows their genetic line. |
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| It's also an opportunity for studbook coordinators of endangered species to monitor how individual species are performing in zoos for breeding programmes. |
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| Beginning in 2003, with China's help, the project acquired two studbook registered South China tiger cubs, a male and female aged 7 and 8 months, respectively. |
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