Complex sentence: The Tibetan plateau goats are kept for down production, in 1994 a doe's average down production was 197 grams while the average buck's down production was 261 grams.
Split into simpler sentences: The Tibetan plateau goats are kept for down production. In 1994 a adult doe's average down production was 197 grams, while the average adult buck's down production was 261 grams.