NZDan
Member
- Location
- Broomfield, New Zealand
The two lines were purely expermental, trangie research farm had many selection lines of both sheep and cattle, they could select on single traits and see what effect it had on other traits, there were weaning weight hi and lo lines, puberty hi and lo, milk hi and lo. In the sheep had many many selection lines.To me, that's just selecting for poor growth rather than efficiency. The clever thing to do would be teasing out the cattle with the best yearling growth compared to mature size i.e. curve benders. Not easy to do but worth pursuing! I'm all for moderate mature size in a cow but there's a happy medium, surely?
The Squaremeater cattle breeders select for increased yearling weight but within yearling height limits. Getting fast growing early maturing animals that remain at a small/moderate height.