Y. Naydenova*, V. Kosev Institute of Forage Crops, 89 Gen. Vladimir Vazov, 5800 Pleven, Bulgaria Abstract. Compositionanddigestibilityarestudiedandpotentialforagefeedingvalueisestimatedofeightbreedingspringandwinterforms–twoBulgarian and two Russian varieties and their four hybrids, p
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