Reproduction study in Japanese quail fed hexachlorobutadiene for 90 days

Residue levels of organochlorine and mercury compounds in unhatched eggs and the relationships to breeding success in white‐tailed sea eagles Haliaeetus albicilla in Sweden

“…Hatchability was greatly reduced in eggs from parent birds fed 80 and 20 mg kg"', respectively, for 90 d, as compared to that of eggs from birds fed 1 and 5 mg kg"', respectively (egg residue levels not reported). Schwetz et al (1974) fed Japanese quail with 20 mg kg"' HCB in tbe diet for 90 d: they found no effects on egg production, fertility, hatchabiiity or eggshell thickness, but a significant decrease in chick survival. HCB levels "in total eggs" averaged 6.2 mg kg"'.…”

High Levels of HCB and DDE Associated with Reproductive Failure in Prairie Falcons ( Falco mexicanus ) from California

“…Hexachlorobenzene (HCB), a pesticide and industrial by-product, has been detected in many wild bird populations (e.g., Vos et al 1969;Noble and Elliott 1990;Jarman et al 1993). In laboratory studies HCB has been shown to decrease the survivability and hatchability of birds (Schwetz et al 1974;Reed et al 1977) and has been associated with reproductive problems in wild populations (Vos et al 1969;Gilbertson and Reynolds 1972). HCB toxicosis in humans has been reported to cause porphyria cutanea tarda (Morgan 1989) which is one of the symptoms of Great Lakes embryo mortality, edema, and deformities syndrome seen in piscivorous birds (Gilbertson et al 1991).…”

Opinion of the Scientific Panel on contaminants in the food chain [CONTAM] related to Hexachlorobenzene as undesirable substance in animal feed

“…per day) for 90 days to study the effects on their reproduction (Schwetz et al, 1974). A decreased survival rate in the chicks hatched during the study was observed at the end of the study as well as increased liver weight in adult birds.…”