Effects of oestrogen supplementation and space restriction on PGF2α-induced nest-building in pseudopregnant gilts

The Observer: A software system for collection and analysis of observational data

L.P.J.J. Noldus · Behavior Research Methods, Instruments, & Computers · 1991 · 472 citations · Full text

Natural Sciences, Astronomy, Computer Science +11

Observations on the maternal behaviour of free-ranging domestic pigs

Per Jensen · Applied Animal Behaviour Science · 1986 · 343 citations

Agriculture, Animal Sciences, Zoology +10

The effect of environment on behaviour, plasma cortisol and prolactin in parturient sows

A.B. Lawrence, J. Carol Petherick, K.A. McLean et al. · Applied Animal Behaviour Science · 1994 · 198 citations

Life Sciences, Animal Sciences, Physiology +14

A study of prostaglandin F2α as the luteolysin in swine: III effects of estradiol valerate on prostaglandin F, progestins, estrone and estradiol concentrations in the utero-ovarian vein of nonpregnant gilts

Marilyn Frank, Fuller W. Bazer, W.W. Thatcher et al. · Prostaglandins · 1977 · 134 citations

Medicine, Animal Sciences, Endocrinology +17

Nest building in domestic sows: the role of external stimuli

Per Jensen · Animal Behaviour · 1993 · 133 citations

Agriculture, Animal Sciences, Poultry Science +16