What is hybrid vigor? What will be an ideal response? ...

[Kikoku]

What is hybrid vigor?
 
  What will be an ideal response?

Question 2

In ___________________ _ sire system breeding, two breeding groups are needed for the system; bulls
  from breeds A and B are rotated on 50 percent of the herd providing crossbred females for the entire
  herd.

 
  Fill in the blank(s) with the appropriate word(s).

[ricroger]

Answer to Question 1

ANS:It
is the result of mating animals from two different breeds. It improves some traits but has little effect
on others.

Answer to Question 2

ANS: rotational-terminal

[Kikoku]

Thanks for the timely response, appreciate it

[cassie_ragen]

Great answer, keep it coming