Published June 1966. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
The drastic reduction in cattle prices with constantly rising costs
of production emphasizes the value of superior genetic material. Although the costs of progeny testing have risen with other production costs, the positive identification of superior genetic material can only be determined by progeny testing.
Seventy-six heifers and 312 steers...
This investigation for the first time reports information on the
correlation of various forms and ratios of nicotinamide nucleotide
coenzymes in the liver tissue and endocrine glands weight with
various production traits. Fifty-five inbred and line cross beef bulls
raised under standard management conditions and slaughtered at 1000
lbs. body...
Three inbred and relatively unrelated lines of Hereford cattle
(1. Lionheart, 2. Prince, and 3. David) developed at the Corvallis
branch of the Oregon Agricultural Experiment Station as part of the
W-1 project of the Western States were crossed annually from 1963
through 1965 inclusive. Data on 137 inbred and...
Some effects of hormone treatment on feedlot heifers were
studied. The treatments were 15 mg diethylstilbestrol (DES) implant,
Synovex H implant, .25 mg oral melengestrol acetate (MGA)
per head per day, and .40 mg oral MGA per head per day. One
hundred heifers, 20 to each treatment, were used. All...
The investigations were based on a complete diallel cross
among three inbred lines of Hereford cattle. Records of Angus calves
born during the same period were used to obtain more accurate
estimates of environmental effects and to determine breed differences
among the various traits included in the study. Estimates of...