replacement

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replacement

1. Geology the growth of a mineral within another of different chemical composition by gradual simultaneous deposition and removal
2. a process of fossilization by gradual substitution of mineral matter for the original organic matter

replacement

[ri′plās·mənt]
(geology)
Growth of a new or chemically different mineral in the body of an old mineral by simultaneous capillary solution and deposition.
(paleontology)
Substitution of inorganic matter for the original organic constituents of an organism during fossilization.
References in periodicals archive ?
Doug Parrett, professor emeritus from the University of Illinois will evaluate the set of heifers for conformation then utilize EPDs to select replacement heifers. Afterward, Glenn Gordon Jr.
Table 5 shows that an additional expense of $567.00 was incurred for other reproductive management procedures required to achieve conception (replacement heifers, nutrition, calf price, and labor) in cows that failed to conceive at their first AI.
Such an assay could be used to establish susceptibility of naïve replacement heifers to foothill abortion or confirm whether the disease is present on a ranch.
This study was carried out in the Agricultural Farm "DOS PIVOTES" engaged in the production of milk and breeding stock (replacement heifers and stallions), and the production of sugarcane for the industry.
Teagasc researcher Dr Laurence Shalloo said 100,000 extra dairy replacement heifers were born this year, compared to 2008.
The result will be tighter beef supplies and higher prices in the future for replacement heifers, and cattle producers will have a harder time financing future herd rebuilding.
One simulation modeled production on a confinement farm that contained a herd of 85 large-framed Holsteins, each producing 22,000 pounds of milk every year, and 76 replacement heifers.
Brothers Tom and Ray Williams raise dairy replacement heifers and a variety of crops, including wheat and different forages, on their 3,000 acres, Tom Williams says.
Intended for both veterinarians and dairy farmers, this guide presents a population-medicine approach for rearing replacement heifers with optimal weight gain, health, and reproductive potential.
But the cost of rearing surplus replacement heifers is high when the low value of Friesian/Holstein bull calves is taken into account.
As with the brood cows, replacement heifers use nutrients for maintenance.

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