
TY  - JOUR
A1  - Tallis, GM 
A1  - Young, SSY 
T1  - Some aspects of the efficiency of large-scale artificial insemination operations in sheep
JF  - Australian Journal of Agricultural Research
JO  - Aust. J.  Agric. Res.
Y1  - 1960
VL  - 11
IS  - 6
SP  - 1017
EP  - 1025
KW  - 
UR  - https://doi.org/10.1071/AR9601017 
N2  - The problems of estimating each day the proportion of ewes coming into oestrus for the first time and the proportion of ewes not returning after the first service have been investigated and discussed in relation to large-scale artificial insemination operations. The results of these theoretical studies were used to examine data from more than 700 Merino ewes which had undergone artificial insemination, and evidence of inefficiency due to an early failure of vasectomized rams was found. From subsequent analyses it was concluded that the methods developed in this paper for estimating conception rates were fairly sensitive and produced satisfactory results. 
ER  -

