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Contribution to knowledge of health, reproduction, biosecurity and ecological problems in intensive cattle and pig production / Prilog poznavanju zdravstvenih, reproduktivnih, biosigurnosnih i ekoloških problema u intenzivnoj govedarskoj i svinjarskoj proizvodnji
(Institut PKB Agroekonomik, Padinska skela, 2010)
Reproductive parameters: open day period, insemination index, time between calving, were monitoring on a total 12.400 dairy cow dairy cows with milk yield of 8500 liters in 305 days long lactation period. Reproductive ...