This brief disclosure tells us a great deal about the lifestyle of these second- and third-generation Nephites. They farmed and raised domesticated animals. Nephi's record tells us the original emigrants brought seeds, but makes no specific mention of importing animals. This is how Nephi described the departure from the Arabian Peninsula: "And it came to pass that on the morrow, after we had prepared all things, much fruits and meat from the wilderness, and honey in abundance, and provisions according to that which the Lord had commanded us, we did go down into the ship, with all our loading and our seeds, and whatsoever thing we had brought with us, every one according to his age; wherefore, we did all go down into the ship, with our wives and our children." (1 Ne. 18: 6, emphasis added.) The highlighted language may include domesticated animals. In fact, the words: "provisions according to that which the Lord had commanded us" could include anything. Second, "whatsoever thing we had brought with us" is equally broad and may have included some domestic animals. So we are left without knowing whether the collection of animals referred to by Enos were native to the new land or were transplants, descended from those which came with the Nephite ancestors from the old country.
There is also another possibility. The record of Nephi makes no attempt to provide details of the trans-oceanic voyage. The whole of it is contained in 1 Nephi, Chapter 18. We have nothing in the account to tell us whether or not there were stops along the way. It would seem likely there were, with periodic re-provisioning, even if they are never mentioned. Similarly, there is no mention of whether any animals were added as a result of hunting or trapping along the coastal route likely followed. We cannot rule out some of the domestic stock Enos mentions were handed-down from original stock arriving with the Nephites' first parents.
The reference to "horses" in this verse is the second time the word appears in the Book of Mormon. The earlier reference appears in 1 Ne. 18 and states: "And it came to pass that we did find upon the land of promise, as we journeyed in the wilderness, that there were beasts in the forests of every kind,…the ass and the horse, and the goat and the wild goat, and all manner of wild animals, which were for the use of men." The Book of Mormon has taken some criticism for including "horses" in the account. Critics assume the only horses which ever existed in the Americas were brought by European colonizers; a premise which is disproved by both the fossil record and pre-Columbian bones of horses.
Because of the specific plants and animals noted in Enos' record, we conclude the agricultural practices of these Nephites made them stationary. They could only farm if they settled in a permanent location. This would result in Nephite city-building and a culture which allowed specialization. In contrast, the Lamanites appear to have been nomadic during Enos' time. These lifestyle differences appear in the first two generations and more or less endure for many generations. The differences between these two cultures both limited Lamanite mechanical and technological innovation and encouraged Nephite development. Consistent with these differences, Nephite innovation gave them an advantage until the end of the Book of Mormon record. Lamanite advances appear to follow and imitate the Nephite example. This historic legacy ensued as a result of the first generations' decision to be a citybuilding, agricultural people on the one hand (Nephites), and a nomadic people on the other hand (Lamanites).