If the giving or refusal be excepted to, the same may be without any stated reason therefor, and all instructions demanded, as well as all instructions given to the jury by the court on its own motion, must be plainly and legibly written in consecutively numbered paragraphs, and filed by the clerk before being read to the jury by the court; and such instructions shall be preserved as part of the record of the cause in which they were given.
Neb. Rev. Stat. §§ 25-1114