control animal


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animal

 [an´ĭ-mal]
1. a living organism having sensation and the power of voluntary movement and requiring for its existence oxygen and organic food; animals comprise one of the five kingdoms in the most widely used classification of living organisms.
2. any member of the animal kingdom other than a human being.
3. of or pertaining to such an organism.
control animal an untreated animal otherwise identical in all respects to one that is used for purposes of experiment; used for checking results of treatment.

con·trol an·i·mal

in research, an animal submitted to the same conditions as the others used for the experiment, but with the crucial factor (for example, injection of antitoxin, the administration of a drug) omitted.
See also: control, control experiment.

con·trol an·i·mal

(kŏn-trōl ani-măl)
In research, an animal submitted to the same conditions as the others used for the experiment, but with the crucial factor (e.g., injection of antitoxin, the administration of a drug) omitted.
References in periodicals archive ?
However, in the control animal that died of [NiV.sub.B] infection, gross pathologic findings included serosanguinous pleural effusion, failure of all lung lobes to collapse with severe pulmonary hemorrhage and congestion, and multifocal to coalescing hemorrhage of the mucosal surface of the urinary bladder.
In control animals (a), positively stained cells are infrequent among the alveolar cells.
At four weeks after treatment, the ejection fraction of the untreated control animals remained essentially unchanged, at about 40 percent.
The control animals (7 males, 7 females) remained in the flow-through tanks at JEL( 14.1 [+ or -] 1.4 [degrees]C, mean [+ or -]SD) until transmitters were attached, and then they were released at the same location where they had been collected, which was also the same location where the bled animals were released.
But the mice that had been engineered with genes to activate the pathway did not gain any more weight than did control animals that consumed normal diets.
Mean liver triglyceride content was reduced by more than 60% in VK2809-treated animals relative to vehicle-treated control animals, while average liver weight was reduced by more than 30% vs.
After IOP recording, 1% CMC was administered in normal control and acute control animals. Two to three drops 1% OZ solution prepared in 1% CMC was instilled topically into the eye for treatment as a single dose.
The untreated control animals remained positive for the mange throughout the course of treatment.
In comparison with MOR45-POS CONTROL animals, TWI was decreased by 44%, 33%, and 41% in MOR45-INC INTERVAL, MOR45-IRREG INTERVAL, and MOR-DEC DOSE groups, respectively.
In comparison with mice that received plain water, thymus glands from mice that received either nutrient were larger after 10 weeks than those of control animals of the same age.
Compared to the control animals, those animals that had received APOSEC injections had considerably less damages.
Far too many people - particularly defenceless youngsters - have been maimed or even killed by out of control animals.

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