Íslenskar landbúnaðarrannsóknir - 01.09.1977, Blaðsíða 93

ARFGENGI MJÓLKURFRAMLEIÐSLUEIGINLEIKA 91
Robertson, A. og Rendel, J., 1954: The perfor-
mance of heifers got by artificial insemination.
J. Agric. Sci., 44: 184—192.
Rönningen, K., 1967: Phenotypic and genetic
parameters for characters related to milk pro-
duction in cattle. Acta. Agr. Scand., 17: 82—
100.
Rönningen, K., 1970: Studies on selection in ani-
mal breeding. IV. Selection bias in estimation
of the repeatability. Acta. Agr. Scand., 20: 123
—132.
Rönningen, K, 1972: The effect of selection of
progeny performance on the heritability estimated
by half-sib correlation. Acta. Agr. Scand., 22:
90—92.
Sigursteinsson, Reynir, 1973: Hlutur erfðabreyti-
leika í afurðum milli kúabúa og afurðaeinkunn
til úrvals á nautsmæðrum. Aðalritgerð við
Framhaldsdeildina á Hvanneyri, 28 s.
Steinþórsson, Sigurður, 1975: Athugun á mjalta-
kúrfu-mjólkurþol og arfgengi. AÖalritgerð við
Framhaldsdeildina á Hvanneyri, 46 s.
Syrstad, O., 1966: Studies on dairy herd records.
IV. Estimates of phenotypic and genetic para-
meters. Acta. Agr. Scand., 16: 76—96.
Syrstad, O., 1975: Protein and fat content of
cows milk. Meld. Nor. Landbr.högsk., 54, nr.
19, 15 s.
Tong, A. K. W., Kennedy, B. W. og Moxley, J.
E., 1976: Effects of correcting for feeding levels
on estimates of genetic parameters of milk
yield and composition. Can. J. Anim. Sci., 56:
523—529.
Touchberry, R. W., Rottensten, K. og Andersen,
H., 1960: A comparison of dairy sire progeny
tests made at special danish testing stations
with tests made in farmer herds. J. Dairy Sci.,
43: 529—545.
Van Vleck, L. D., 1968: Selection bias in esti-
mates of the genetic correlation. Biometrics, 24:
951—962.
Van Vleck, L. D., Heidhues, T. og Henderson,
C. R., 1961: Analysis of deviations of dairy
records from different contemporary averages.
J. Dairy Sci., 44: 269—281.
Van Vleck, L. D. og Henderson, C. R., 1961:
Estimates of genetic parameters of some func-
tion of part lactation milk records. J. Dairy
Sci., 44: 1073—1084.