Rate and efficiency of gains in beef cattle.
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Rate and efficiency of gains in beef cattle.

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Published by Agricultural Experiment Station, Oregon State College in Corvallis .
Written in English

Subjects:

  • Beef cattle -- Metabolism.,
  • Urine -- Analysis.,
  • Beef cattle -- Feed utilization efficiency.

Book details:

Edition Notes

Other titlesUrinary specific gravity, pH, and buffer capacity in beef cattle.
StatementM.A. MacDonald, Hugo Krueger, Ralph Bogart.
SeriesTechnical bulletin / Oregon State College, Agricultural Experiment Station -- 54., Technical bulletin (Oregon State College. Agricultural Experiment Station) -- 54.
ContributionsKrueger, Hugo 1902-, Bogart, Ralph, 1908-
The Physical Object
Pagination40 p. :
Number of Pages40
ID Numbers
Open LibraryOL16091170M

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in rate of gain. Between pounds and pounds the average daily gain was pounds for bulls and pounds for heifers. Effect of age of dam on weight of calves Both body weight and producing ability of a cow increase with age, up to a certain age. According to Sawyer et al. (), 2-year-. economy of gain during the test period, and (c) on gain per day from birth to the end of the test. 3 Rate and Efficiency of Gains in Beef Cattle CECIL D. PIERCE, H. G. AVERY, MARTIN BURRIS, RALPH BOGART* Introduction Effective selection in beef cattle improvement depends upon the relative value of factors used in that selection. If selections are. GAINS IN BEEF CATTLE between testosterone-treated and control heifers in amount of hind-. quarter was per cent and that for the steers was per cent. A significant interaction was found between the effect of testos-. terone and sex of calf on the per cent of round. 1. Hereford cattle were individually fed on a concentrate and hay ration to appetite, 6 bullocks and 6 heifers being treated as controls and 12 similar animals receiving intramuscular injections of 1 mg. testosterone per kg. bodyweight weekly during growth from to lb. liveweight. Heifers showed an immediate response to the injections, gaining lb. daily more than the control Cited by: 1.

For part 5 see Abst. , Vol. 7. The animals and samples were those described above. Correlations were studied between individual blood constituents and performance after weaning and between the same constituent at and lb. bodyweight. Blood Hb at lb., average g. per ml., was significantly lower for males than females in both by: 1. 2. Hereford calves born in the spring and early summer were subjected to a to day test feeding period during the following winter. Birthweight, gains during the suckling period, and age and weight at the start of the test period (independent factors) were related to rate and economy of gains during the test period, and to gains per day from birth to the end of test, by multiple Cited by: 5. Bulletin: Rate and efficiency of gains in beef cattle. 6. 6. Breed, line, and sex differences for some blood constituents of young beef cattle. pp : D. A. Price, G. I. Alexander, Hugo Krueger, Ralph Bogart. For part 4 see Abst. , Vol. 5. Rate of gain of weight and feed economy were measured in 44 weaned Hereford and Aberdeen Angus calves of several strains for the period during which they grew from to lb. At lb. serum inorganic phosphate, alkaline phosphatase and acid phosphatase were estimated. The relations between the different strains and breeds, Cited by: 3.

ASPECTS OF RATE AND EFFICIENCY OF GAIN IN BEEF CATTLE AMD HERITABILITY ESTIMATES by Huibert Doornenbal A Thesis Submitted i n P a r t i a l F u l f i l m e n t of ements f o r the Degree,of MASTER OF SCIENCE IN AGRICULTURE in the Department of Animal Science We accept t h i s t h e s i s as conforming to the standard . production in beef enterprises • As corn prices approached and exceeded $7 per bushel, feed costs were nearly 80% of the cost in many feedlot operations • A feed efficiency improvement of approximately 10% across the entire feedlot sector would reduce feed costs $ Billion in (Weaber, ) • Fewer resources used = improved global food security.   Food intake, eating rate, weight gains, metabolic rate and efficiency of feed utilization in Bos taurus and Bos indicus crossbred cattle - Volume 25 Issue 3 - Cited by: PRODUCTIVITY AND EFFICIENCY OF CATTLE BREEDS (From: "Characterization of beef cattle breeds by virtue of their performances in the National Beef Cattle Performance and Progeny Testing Scheme". ,,26(1) by S J Schoeman) Breed averages for 16 breeds over 14 years. Nearly 3/4 mil. weaning records and growth testFile Size: KB.