In the book Old Yeller what is the first 34 pages about

Depending on the edition you have, the exact amount of plot in 34 pages may differ slightly. The following summary of the first 34 pages was taken from my edition, so be aware that there might be a bit more/less than whichever version you're referring to!
Old Yeller takes place shortly after the Civil War in Texas; the first-person narrator Travis Coates is left to take care of the farm and his family when his father heads off for a cattle drive. The morning after his father leaves, Travis meets Old Yeller, an ugly little dog who's gnawing at a piece of scrap meat. Arliss, Travis's younger brother, demands that the dog be taken in. Travis initially attempts to reject this idea, for he finds the dog to be dirty and ugly.
The next day, Travis goes hunting and kills a deer to feed his brother and mother. When he returns, he finds Arliss and Old Yeller dancing in the family's supply of drinking water. As a result, Travis swears a vendetta on the poor little dog!