Hi there to everyone. I would just like to thank everyone that answered my previous question. Can you feed Broilers with Broiler meat. I must say it was informative. I have really learnt a lot. However I have decided to rear my own broilers either Ross 308 or Cobb Vantress. I was browsing through some websites and it was interesting to find that about 30% or "MORE"! is lost when you cull birds. Therefore I would like to know how does one get bigger birds. I am almost 100% it has got to do with the genetics but there is nothing we can do about that, now can we. We simply lease or purchase parent stock or grandparent stock. Therefore I am seriously looking at feed. Someone mentioned something about fishmeal. I am looking to raise a bird up to 7 pounds. When I slaughter I want to be left with 4.5 Pounds. Is this possible.