1. Hubbard Breeder Management Guide;Anonymous,1997
2. Cobb 500 Breeder Management Guide;Anonymous,1998
3. Don't neglect the individual bird;North;Poult. Dig.,1980
4. Fundamental principles of broiler breeder nutrition and the design of feeding programmes;Costa;World's Poult. Sci. J.,1981
5. Reproductive performance, growth rate and body composition of broiler breeder hens differing in body weight at 21 weeks of age;Robinson;Can. J. Anim. Sci.,1991