The mandatory performance tests to include pigs in the national register pertained only to fertility (Zuchtleistung) and not to the more demanding and time-consuming fattening performance tests (Mastleistung) developed in academia. The RNS thus also constituted an additional German pig performance register (
The obligation of commercializing only registered animals allowed academics to trace the bloodlines of the many thousands of breeding animals sold throughout the Reich.[66] For example, of the 5,323 boars auctioned in Westphalia from 1937 to 1939, it was possible to identify a single bloodline, the “Rabe-Radbod-Linie,” as responsible for at least half of the commercialized boars. And bloodlines involved much more than recording the animals’ progeny. As it was the case with the human pedigrees that had been used by physicians and eugenicists since the end of the nineteenth century, animal pedigrees were open to all sorts of relations in order “to capture the whole network of kin relationships” that surrounded an individual animal.[67] Müller-Wille and Rheinberger thought-provokingly suggested that such bi-dimensional charts resembled schematic drawings of electrical circuits more than the linear structures common in genealogy. Frölich emphatically asserted that “pedigree charts should not be schematic” but also should offer detailed information on the properties and performance of the different animals indicating its value for the breeder.[68] The charts were to be filled with the results coming out of the performance test centers directed by academics.
The merits of individual animals belonging to a bloodline were to be discussed in detail, bringing together old breeders’ talk of external properties and modern performance records. The new standards developed by academics actually increased the ability of breeders for individuating animals. The external properties identified with certain bloodlines that previously had earned prizes in fairs and shows and that raised the market value of animals, more than being replaced, were now complemented with the new vocabulary of performance records.[69] And in fact at least 26 of the 35 boars included in the performance register in 1940 had won major prizes at RNS shows.[70] Frölich himself embodied the compromise of the two worlds: he had judged animal shows since the 1910s, evaluating sows and boars for their bodily proportions, while at his institute he was developing performance standards for fertility and gain rates. More significantly, as we shall see, an important part of academic research in animal breeding in the Nazi years was to explore the relations between form and performance, promising to overcome the differences between commercial breeders’ visual evaluations and academic breeders’ tests.
Nutritional Freedom and Fats
The special issue of