牛及其疾病：涵盖其历史与品种、杂交与育种，- 完整有声书

Human narration by a volunteer reader from LibriVox.org, the public-domain audiobook project. LibriVox volunteers record literary works whose copyright has expired in the United States, releasing the resulting recordings into the public domain.

牛及其疾病：涵盖其历史与品种、杂交与育种，- 完整有声书. The underlying text is in the U.S. public domain. We do not republish any modern copyrighted edition, translation, or commentary.

The 4K cinematic visuals accompanying this audiobook are generated by an AI image model from prompts derived from the source text. No copyrighted photos, paintings, or stock footage are used. AI generation is disclosed on every video on our YouTube channel as required by YouTube's altered/synthetic content policy.

English subtitles are transcribed from the LibriVox recording with OpenAI Whisper. Translations into the 11 other supported languages are produced by Meta's NLLB-200 neural translation model. No human translator's copyrighted translation is used.