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Effect of Dichlorvos on Reproductive Performance of Laying hens

机译：敌敌畏对蛋鸡繁殖性能的影响

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The effect of dichlorvos on reproductive performance of laying hens was studied. Seven weeks old pullets with an average weight of 557.5 ± 9.5 g were divided into four groups and fed ad libitum with commercial poultry feeds contaminated with 0.01, 0.02 and 0.04% dichlorvos (w/v). The group without dichlorvos served as the control. Exposure to dichlorvos was continued until nine weeks after the hens started laying eggs. There was a significant reduction (p0.05) in feed intake between the control group and those exposed to dichlorvos. Egg laying was delayed in the hens exposed to the pesticide by as much as eighteen weeks. The ages of the hens at first egg lay were 18 weeks for the control, 23 weeks for hens fed on 0.01 and 0.02% contaminated diet and 36 weeks for those fed on 0.04% contaminated diet. The average daily egg production was reduced from 5 eggs in the control group to 1 egg in 0.04% contaminated group. The protein contents of the egg (yolk and egg-white) and cholesterol level of the egg yolk were lowered in birds exposed to dichlorvos. There was no significant difference in the weight of eggs between the control and those exposed to pesticide. Results of this study suggest that exposure of laying hens to dichlorvos could affect their reproductive success.
机译：研究了敌敌畏对蛋鸡繁殖性能的影响。将平均重量为557.5±9.5克的7周龄小母鸡分为四组，并随意饲喂被0.01、0.02和0.04％敌敌畏（w / v）污染的商业家禽饲料。没有敌敌畏的组作为对照组。母鸡开始产卵后持续暴露于敌敌畏直到九周。对照组和暴露于敌敌畏的动物之间的采食量显着减少（p <0.05）。暴露于该农药的母鸡的产卵时间延迟了十八周之久。对照组的第一胎产蛋母鸡的年龄为18周，受0.01和0.02％污染的日粮喂养的母鸡为23周，受0.04％污染的日粮喂养的母鸡为36周。平均每日产蛋量从对照组的5个蛋减少到0.04％污染组的1个蛋。暴露于敌敌畏的鸟的蛋中蛋白质含量（蛋黄和蛋清）和胆固醇水平降低。对照和暴露于杀虫剂之间的鸡蛋重量没有显着差异。这项研究的结果表明，蛋鸡暴露于敌敌畏可能会影响其繁殖成功。

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