00621naa#a2200181#i#4500001001500000005001700015011001400032100004100046101000800087102000700095200009100102210006100193215001000254608002700264675010300291700002500394856002000419EN\\bibl\7729420260220161859.5##a1819-4036##a20121025b2012####ek#y0engy0150####ca0#aRUS##aRU1#aSERVICE-PERIOD INFLUENCE ON BLACK-MARKED BREED COWS MILK PRODUCTIVITYeJournal article1#aKrasnoyarskcKrasnoyarsk State Agrarian Universityd2012##a2 с.##aJournal article2local##aКрупные жвачные животные. Крупный рогатый скот. 636.2zRUS#1aChasovshchikovagM A4#avestnik.kgau.ru