Post‐weaning anoestrus in primiparous sows: LH patterns and effects of gonadotropin injection and boar exposure

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• Research Institute for Animal Production ‘Schoonoord’, P.O.Box 501. 3700 AM Zeist, the Netherlands.
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• Present address: Central Veterinary Institute, P.O.Box 65, 8200 AB, the Netherlands.
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• Present address: Directorate for Agricultural Research (DLO), P.O.Box 59, 6700 AB Wageningen, the Netherlands.
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