Lillie R J, Cecil H C, Bitman J, Fries G F, Verrett J
Poult Sci. 1975 Sep;54(5):1550-5. doi: 10.3382/ps.0541550.
The biphenyls tested with caged White Leghorn pullets were polychlorinated biphenyl (PCBs) Aroclors 1232, 1242, 1248, 1254 and 1016 and polybrominated biphenyl (PBB) PBP-6 at the 5, 10 and 20 p.p.m. levels. These pollutants exerted no adverse effects on egg production, egg weight, egg shell thickness, feed consumption, adult body weight changes, livability and fertility after 8 weeks of biphenyl feeding, irrespective of biphenyl level or compound. Hatchability of fertile eggs as a result of biphenyl feeding was significantly affected by 10 or 20 p.p.m. and by three PCB compounds (Aroclors 1232, 1242, 1248). The hatchability (%) of eggs laid by pullets fed 10 and 20 p.p.m. declined to 78 and 45, respectively, for Aroclor 1232, 48 and 5 for Aroclor 1242 and 40 and 5 for Aroclor 1248 after 6 weeks of biphenyl feeding, as compared with 90 for the control group. The most common embryonic abnormality was edema in the neck and rump areas. Biphenyl supplementation in the maternal diet also caused a shift in the peak pattern of embryonic death. Progeny growth as a result of biphenyl in the maternal diet was significantly depressed by 10 or 20 p.p.m. and by Aroclors 1242 and 1248. The level of the three PCBs found to be toxic to chickens appears to lie somewhere between 5 and 10 p.p.m.
用笼养白来航母鸡进行测试的联苯类物质为多氯联苯（PCBs）Aroclors 1232、1242、1248、1254和1016以及多溴联苯（PBB）PBP - 6，浓度分别为5、10和20 ppm。在喂食联苯8周后，无论联苯浓度或化合物种类如何，这些污染物对产蛋量、蛋重、蛋壳厚度、采食量、成年鸡体重变化、存活率和受精率均未产生不良影响。喂食联苯导致的可育蛋孵化率受到10或20 ppm以及三种PCB化合物（Aroclors 1232、1242、1248）的显著影响。在喂食联苯6周后，喂食10 ppm和20 ppm Aroclor 1232的母鸡所产蛋的孵化率（%）分别降至78和45，喂食Aroclor 1242的降至48和5，喂食Aroclor 1248的降至40和5，而对照组为90。最常见的胚胎异常是颈部和臀部区域水肿。母体日粮中添加联苯还导致胚胎死亡高峰模式发生变化。母体日粮中的联苯使后代生长显著受到抑制，10或20 ppm以及Aroclors 1242和1248均有此作用。已发现对鸡有毒的三种PCB的浓度似乎介于5至10 ppm之间。
