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1·Extraction of yolk oil from dried egg yolk by supercritical fluid with carbon dioxide is described.

用超临界二氧化碳萃取技术，在比较温和的实验条件下，从蛋黄粉中分离出蛋黄油。

2·Therefore, examinees need to pay attention and select food products that contains high level of calcium such as milk, yogurt, dried small shrimps and egg yolk, which has stabilizing effects.

因此，备战考生要注意选择含钙高的牛奶、酸奶、虾皮、蛋黄等食物，有安定情绪的效果。

3·Therefore examinees need to pay attention and select food products that contains high level of calcium such as milk yogurt dried small shrimps and egg yolk which has stabilizing effects.

因此，备战考生要注意选择含钙高的牛奶、酸奶、虾皮、蛋黄等食物，有安定情绪的效果。

4·In conclusion, serum IL-2 content decreased after early weaning, serum TNF content was improved by spray-dried plasma and the special immunization egg yolk ration fed.

由此得出结论，早期断奶降低了仔猪血清il - 2含量，饲喂血浆蛋白粉和特异性免疫卵黄日粮可以提高血清tnf含量。