A. Keen

Effect of Slatted Floor Area on Ammonia Emission and on the Excretory and Lying Behaviour of Growing Pigs

A.J.A. Aarnink, M.W.A. Verstegen, A. Aarnink, 1996 .

Description of a detection model for oestrus and diseases in dairy cattle based on time series analysis combined with a Kalman filter

G. H. Kroeze, R. M. de Mol, A. Keen, 1999 .

Effect of protein nutrition on ammonia emission from a cubicle house for dairy cattle

M. Smits, A. Keen, H. Valk, 1995 .

Ammonia Emission Patterns during the Growing Periods of Pigs Housed on Partially Slatted Floors

A.J.A. Aarnink, J.H.M. Metz, A. Keen, 1995 .

The effect of manure and litter handling and indoor climatic conditions on ammonia emissions from a battery cage and an aviary housing system for laying hens

P. Koerkamp, A. Keen, A. Keen, 1995 .

Examination of egg number and egg weight variables and their effects on daily management in aviary systems for laying hens.

C. Lokhorst, A. Keen, C Lokhorst, 1995, British poultry science.