Environmental hazard/risk assessment of pesticides used in agriculture for birds and mammals. The Dutch concept. Part 2. Avian food avoidance behaviour
Citations
Altmetric:
Series / Report no.
Open Access
Type
Report
Language
en
Date
1993-09-30
Research Projects
Organizational Units
Journal Issue
Title
Environmental hazard/risk assessment of pesticides used in agriculture for birds and mammals. The Dutch concept. Part 2. Avian food avoidance behaviour
Translated Title
[Methode ter beoordeling van het risico van bestrijdingsmiddelen voor vogels en zoogdieren. Deel 2. Voedsel vermijdingsgedrag bij vogels.]
Published in
Abstract
The purpose of this report (the second one of a series in which the methodology for hazard/risk assessment of the use of pesticides for birds and mammals will be presented) is to give a method for taking into account the avoidance behaviour in the evaluation of LC50 studies and to provide a concept for the use of food avoidance behaviour in the environmental hazard/risk assessment of pesticides used in agriculture for birds. An analysis is made of the standard dietary LC50 test and of 3 types of food avoidance tests. It is concluded that the standard dietary LC50 test provides most of the information necessary to understand the repellent properties of a pesticide. It is recommended to measure the food consumption daily, to provide information about the learning abilities of the species tested (when does food avoidance appear). A method is proposed to calculate the No Repellent Concentration (NoRC). The NoRC is the concentration in the treated food at which the birds in the test will eat the same amount of treated food as the amount of (untreated) food in the conrol group. Data of the range finding tests can be used to design the LC50 test (which doses will be tested) to provide a better estimation of the NoRC value. These small alterations of the standard LC50 test make other repellency tests with birds superfluous, because the standard LC50 test is providing enough information about the repellent properties of the substance. Those repellency tests can be used to provide information about the edibility of the granulates and seeds (coated or pillorized, but not treated with a substance), which results in less suffering of test animals.<br>
Description
Publisher
Rijksinstituut voor Volksgezondheid en Milieu RIVM
Sponsors
DGM/DWL
DGM/SVS
DGM/SVS