Canine Resources:

Timing the Fertile Period of the Bitch
The Latest Advances in Reproductive Technology
Progesterone Testing and Ovulation Timing (Bulldogs.com)
The Normal Reproductive Cycle of the Bitch - Labbies.com
Timing C-Sections in Bulldogs

Equine & Bovine Resources:

Diagnostic Kits to Determine Reproductive Function

Newsletters

Breeding Notes
Mare Management
Improving Reproductive Performance of the Mare