Abstract: The PVC film contains a very small percentage of carbon black, which makes it possible to mark the film excellently by means of a laser beam.

Abstract: The risk that the health of pregnant animals and their young will be impaired by gastro-intestinal infection is reduced by oral administration of endotoxins of the relevant pathogenic organisms to the pregnant animals. Combination of oral and parenteral administration is particularly beneficial, whether the animal is pregnant or not, in boosting immunological capacity. This technique is especially beneficial for mammals whose young acquire their passive immunity via the colostrum and hence through the gastro-intestinal wall, such as pigs, cows and sheep.

Abstract: This invention concerns emulsifier blends containing essentially C.sub.14 -C.sub.22 monoglycerides, fatty acids and ionic surfactants and optionally diglycerides.Preparation data for homogeneous emulsifier blends is given together with a process for preparing emulsifier gels containing the blends which gels are homogeneous liquid-crystalline dispersions useful in foodstuffs -- particularly baked goods.