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Journal of Reproduction and Fertility|May 1, 1987
Intraruminal soluble glass boluses containing melatonin can induce early onset of ovarian activity in ewesA L Poulton, A M Symons, M I Kelly, et al.
The Veterinary Record|March 5, 1988
Use of an intraruminal soluble glass bolus containing melatonin for early lamb productionA L Poulton, D C Brown, E M Thomas, et al.
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