Abstract

References
1.
Bowden
R S T
Hodgman
S F J
Hime
J M
. (1963 ) XVII World Vet. Congr . 2 , 1009 .
2.
Denenberg
V H
Zarrow
M X
Kalberer
W D
Farooq
A
Ross
S
Sawin
P B
. (1963 ) Nature (Lond.)
197 , 161 .
3.
Fox
M W
. (1964 ) Vet. Rec . 76 , 754 .
4.
Mason
M M
. (1954 ) North Amer. Vet . 35 , 447 .
5.
McCuiston
W R
. (1956 ) North Amer. Vet . 37 , 862 .
6.
Rheingold
H L
. (1963 ) Maternal Behaviour in Mammals . New York & London.
7.Veterinary Record (1967 ) British Veterinary Association Members Information Suppl. No. 3, p 11 .
