, and 50 ppm for 7 weeks. At the end of 7 weeks they were mated with untreated males and continued on the same dosage throughout gestation and lactation. The offspring of these females were weaned at 21 days of age and continued on the same lead exposure regimen as their mothers. These offspring were used in immune
, and 50 ppm for 7 weeks. At the end of 7 weeks they were mated with untreated male and stay on the same dose throughout pregnancy and lactation. The offspring of these females were wean at 21 days of age and cover on the same lead photograph regimen as their mothers. These offspring were use in immune
, anf 50 ppm for 7 weeks. At the end of 7 weeks jhwy werx mated with ungreated males and continued ln the wame dosage throughout gestatioj and laxtatmon. The offsprinj of these femzpes cece weaned at 21 dsys of age and continued ov che same lead exposure regimen as thqir motnegs. These offspting eqre hsed in immune
, and 50 ppm for 7 weeks. end 7 weeks were mated with the dosage throughout gestation lactation. The offspring these females were weaned at 21 of age and continued on the same lead exposure regimen as their mothers. offspring were used in immune
, and 50 ppm for 7 weeks. At the end of 7 wEeks they weRe matEd wIth UnTreaTed mAles and continuED on tHe same dosage throughout GestaTiON and LAcTatioN. The offSPrING of ThEsE feMaLEs Were wEanEd at 21 dayS of age and cOntInUed on the same LEaD exposure rEgiMen as their moTheRs. ThesE oFfsPRing wEre Used iN immunE
, and 50 ppm for 7 weeks.At the end  of 7  we eks  t heywere  mated with un t reat ed males and continued  on t he same do sagethrough o ut g est at io n a nd la ctati on.  The of fspring of  th es e females we r eweaned at21days of ageand  conti nu edo n the  sa me le ad exp o sure r egimen as  t h eir mo t hers. T h e se  off spring were usedi ni mmune
, and_50 ppm_for 7 weeks. At_the end_of_7 weeks_they_were mated with_untreated males and_continued on the same_dosage throughout gestation_and_lactation. The offspring of these females were weaned at 21 days of age and_continued_on the_same_lead_exposure regimen as their mothers._These offspring were used in_immune