Main Title |
Effects of Dietary Methyl Parathion on Northern Bobwhite Egg Production and Eggshell Quality. |
Author |
Bennett, J. K. ;
Bennett, R. S. ;
|
CORP Author |
Corvallis Environmental Research Lab., OR. ;NSI Technology Services Corp., Corvallis, OR. |
Publisher |
c1990 |
Year Published |
1990 |
Report Number |
EPA/600/J-90/403; |
Stock Number |
PB91-171595 |
Additional Subjects |
Methyl parathion ;
Birds ;
Wildlife ;
diet ;
Dose-response relationships ;
Food consumption ;
Body weight ;
Reprints ;
Northern bobwhite ;
Eggshells ;
Egg production ;
Colinus virginianis
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB91-171595 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
7p |
Abstract |
The effect of a short-term dietary methyl parathion exposure on northern bobwhite (Colinus virginianus) egg production and shell quality was investigated. Hens in egg production were fed either a methyl parathion diet (0,14,20,28 or 40 ppm) or a pair-fed diet (PF28 or PF40 received the same daily allotment of control feed on a g/kg/d basis as the 28 or 40 ppm-treated hen with whom she was paired) for 8 d. Daily food consumption was significantly reduced in all treatment groups and inversely related to chemical concentration. However, actual chemical consumption was similar for all methyl parathion-treated groups. Body weight, egg production, egg weight and eggshell strength, thickness and weight were reduced in the methyl parathion groups in a dose-related manner. Similar responses were observed in the pair-fed groups, indicating that effects were associated with a pesticide-induced reduction in food consumption. The dietary methyl parathion exposure impacted bobwhite egg production within 3 to 4 d and eggshell quality within 1 d of the onset of treatment. |
Supplementary Notes |
Pub. in Environmental Toxicology and Chemistry, v9 p1481-1485 1990. Prepared in cooperation with NSI Technology Services Corp., Corvallis, OR. |
NTIS Title Notes |
Journal article. |
Title Annotations |
Reprint: Effects of Dietary Methyl Parathion on Northern Bobwhite Egg Production and Eggshell Quality. |
Category Codes |
68E; 57Z |
NTIS Prices |
PC A02/MF A01 |
Primary Description |
600/02 |
Document Type |
NT |
Cataloging Source |
NTIS/MT |
Control Number |
114324696 |
Origin |
NTIS |
Type |
CAT |