Íslenskar landbúnaðarrannsóknir - 01.03.1971, Qupperneq 40

38 ÍSLENZKAR LANDBÚNAÐARRANNSÓKNIR
HEIMILDARRIT - REFERENCES
Berge, S„ 1934: Om spredningen til et gjen-
nomsnittstall av lexiske rekker. Meld.
Norges Landbrukshögskole. 14: 787—804.
Gjedrem, T„ 1966: Selection index for ewes.
Acta Agric. Scand., 16: 21—29.
Gjedrem, T„ 1967: Selection Index Compared
with Single Trait Selection. I. The Ef-
ficiency of Including Correlated Traits.
Acta Asriculture Scandinavica, 17: 263—
268.
HallgrÍMSSON, Sveinn, 1965: Noen faktorer
som virker pá fruktbarhed hos sau. Lisen-
siat-ritgerð. Norges Landbrukshögskole.
Hazel, L. N„ 1943: The genetic basis for con-
structing selection indexes. Genetics, 28:
476-490.
Hazel, L. N. and Lush, J. L„ 1942: The
efficiency of three methods of selection.
/. Heredity, 33: 393—399.
JOHANSSON, I. and Hansson, A„ 1943: The
sex ratio and multiple births in sheep.
Lantbrukshögskolans Annaler, 11: 145—
171.
Kempthorne, o., 1957: An introduction to
genetic statistics. John Wiley & Sons, Inc.
New York.
R.OBERTSON, Alan, 1959: Experimental design
in the evaluation of genetic parameters.
Biomeirics, 15 (2): 219—226.
ROBERTSON, A. and Rendel, J. M„ 1950: The
use of progeny testing with artificial in-
semination in dairy cattle. /. Genet., 50
(1): 21-31.