No sows need to be older than 6 farrowing
Your gilt replacement need to be on 54% per year
25% of your farrowing sows need to be gilts
97% of inseminated gilts need to come to farrowing
94% of inseminated sows need to come to farrowing
SFY depend of which breed you have, some breeds have up to 117 days in gestation.
SWY depend on which breed you have, and also the local laws. Some countries demand that the nursery period is not less than 4 to 5 weeks weeks.
Mortality
In farrowing not more than 7%
In weaning not more than 1.5%
In finisher not more tab 1 %
Sows not more than 3% per year
If you have more then you got problems with your management
Feed consuming
In weaning, depend on your requite end weight
In finisher depend on your requite end weight
Gilts: paid info
Gestation: paid info
Farrowing: paid info
Young Boar, as gilts : paid info
Old Boar depend if he is in use or just as smelling : paid info