The phrase "frequency of aggression" is correct and can be used in written English.
You can use this phrase to refer to the rate or pattern of aggressive behavior. For example, "The frequency of aggression in the workplace has been increasing over the past few years."
To test whether workers responded aggressively toward treated colonymates, we compared the frequency of aggression in each treatment to the negative controls.
As predicted, the frequency of aggression and size variation within groups decreased and the number of fish feeding at any particular time increased as patch size increased.
We tested the predictions that the frequency of aggression, degree of resource monopolization and individual size variation within groups would decrease as patch size and predation risk increased.
As predicted, with increasing patch perimeter, the ability of the large (dominant) fish to defend the patch decreased, as reflected by a decrease in the frequency of aggression and the proportion of the aggression by the dominant.
The actual number of birds at a food patch at a given time was more important in determining the frequency of aggression at the food patch than the number of birds present in an enclosure or previous GS experience.
To test the hypothesis that the frequency of aggression in broiler chickens will be lower in response to increased crowding and perch availability, groups of broiler were observed from 2 to 6 weeks of age.
The reported frequencies of aggression problems were significantly associated with age, gender, neuter status, and breed.
No difference in frequencies of aggression were seen (Fig. 1) between males allowed to previously pair with a female or with a female present (Wilcoxon signed-ranks test, Z = −0.07, N = 20, p = 0.9430).
> -wrap-foot> aLOD scores were calculated with the following assumptions: frequency of the "aggression allele" = 0.1; penetrance of the "aggression allele" = 0.01; θ = 0.
In aggression tests, both high and low dose males exhibited greater frequency of aggressive behaviors compared to controls, while no difference in aggression was evident in the females.
The results showed that there had been more severe aggression in treatment 2 during the days after mixing due to higher frequency of physical aggression around feeding time (treatment 1: 0.6 ± 0.21 times, treatment 2: 2.9 ± 0.99 times, P = 0.06), more wounds (treatment 1: 3 of 10 pairs, treatment 2: 8 of 10 pairs, P = 0.03) and less body weight gain (P = 0.03) compared to treatment 1.
