
TY  - JOUR
A1  - Reid, RND 
T1  - The effects of pregnancy and lactation on wool production and liveweight in Polwarth ewes
JF  - Australian Journal of Experimental Agriculture
JO  - Aust. J. Exp. Agric.
Y1  - 1978
VL  - 18
IS  - 90
SP  - 58
EP  - 62
KW  - 
UR  - https://doi.org/10.1071/EA9780058 
N2  - Groups of Polwarth ewes which 1. were barren, 2, were pregnant but aborted with prostaglandins in early pregnancy, 3. lambed and reared a single lamb and 4. lambed but had their single lamb removed soon after birth, were used to estimate the effects of pregnancy and lactation on wool and Iiveweight. Pregnancy plus lactation reduced liveweight (17 per cent), wool growth rate (9 per cent) and clean fleece weight (11 per cent) ; pregnancy alone reduced liveweight (10 per cent), wool growth rate (7 per cent) and clean fleece weight (10 per cent) and its effects were greater than those of lactation in each of the characters studied. 
ER  -

