n.uncastrated adult male sheep

"a British term is `tup'"

同義詞：ram

[Conditions for successful reproduction [physiology, preparation for tupping, successful tupping, ram effect, care of tupped ewes]]...
Plasma progesterone profile during gestation and peripartum period in Corriedale sheep.
Toxoplasmosis in a flock of sheep: some investigations into its source and control.
Experimental assessment of the pathogenicity of Brucella strains from marine mammals for pregnant sheep
THE EPIDEMIOLOGY OF LOUPING ILL IN AYRSHIRE: THE FIRST YEAR OF STUDIES IN SHEEP.
Winter feeding of the in-lamb ewe.
EFFECTS OF CHONDRUS CRISPUS ON FERTILITY, PREGNANCY, AND POST-NATAL WE...
The breeding behaviour of two-tooth ewes
Impact of non-conventional energy sources in ration on productive and reproductive performance of ewes.
Lock nut