These are relevant references from the Books where a Slave Pedigree is mentioned.
I make no pronouncements on these matters, but report them as I find them.
Arrive at your own conclusions.
I wish you well,
Some female slaves, incidentally, have a pedigreed lineage going back through several generations of slave matings, and their masters hold the papers to prove this.
Savages of Gor Book 17 Page 69
There are few male slaves with long pedigrees. Goreans, though recognizing the legal and economic legitimacy of male slavery, do not regard it as possessing the same biological sanction as attaches to female slavery.
Savages of Gor Book 17 Page 70
Such breedings commonly take place with the slaves hooded, and under the supervision of the master, or masters. In this way the occurrence of the breeding act can be confirmed and authenticated. Sometimes a member of the caste of scribes is also present, to provide certification on behalf of the city. Usually, however, in cities which encourage this sort of registration it is sufficient to bring the papers for stamping to the proper office within forty Ahn. Such rigor, however, is usually involved only in the breeding of expensive, pedigreed slaves.
Blood Brothers of Gor Book 18 Page 319
In a moment or two there proceeded through the door two men, clad in blue robes. One carried a small rectangular board on which he held some papers. At his belt there hung a small case, containing at least pens, and a tiny horn, which, as Ellen later realized, was an inkhorn. Ellen had seen such papers before, when she had been examined in great detail, apparently partly to ascertain identifying marks, subjected to numerous measurements, and fingerprinted and toeprinted. She had little doubt that they were her slave papers. Such papers, as may have been mentioned, are unnecessary and are not kept on the vast majority of slaves. They can provide a convenience to buyers and sellers, however, as they will provide a good deal of information, with respect to background, caste, education, languages, training levels, physical descriptions, collar sizes, ankle- and wrist-ring sizes, and such, on the slave in question. Sometimes brochures and sales sheets for public postings are compiled from them by judicious selections. Such papers assume greater importance, of course, in the case of pedigree slaves or exotics. The bloodlines of some pedigree slaves go back several generations. Collectors, too, tend to be interested in the background of exotics, for example, who bred them, and where they were bred, and such.
"I could be bred?" she said.
"Of course," I said, "you are slave stock."
This sort of thing, on the whole, however, is usually done by fellows who have many female slaves and do not know them, often the proprietors of large farms. The slaves, then, are bred with the same attention to lines, and properties, as other domestic animals, tarsk, verr, hurt, kaiila, tharlarion, and such. This sort of thing is independent of the sort of thing practiced on the great slave farms. Some bred slaves have pedigrees going back several generations.