The exercise needs for tied and free-moving dry sows

by Lasse Gravås
Bok · Bokmål · 1980

Utgitt	[ÅS] : NLH , 1980
Omfang	15 s.
Opplysninger	"Summary figures and tables presented at the IVth Nordic Symposia of Ethology, Helsingfors ... 1980"