The responsiveness of sows to their piglets in relation to the length of parturition and the involvement of endogenous opioids
| Autor: | Jarvis, Susan a, b, *, McLean, Kirsty A a, Calvert, Sheena K a, Deans, Lesley A a, Chirnside, Joan a, Lawrence, Alistair B a |
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| Zdroj: | In Applied Animal Behaviour Science 1999 63(3):195-207 |
| Databáze: | ScienceDirect |
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