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Case-referent study of cystic ovaries as a risk indicator for twin calvings in dairy cows
P.H. Bendixen, P.A. Oltenacu, L. AnderssonVolume:
31
Year:
1989
Language:
english
DOI:
10.1016/0093-691x(89)90489-5
File:
PDF, 411 KB
english, 1989