References
- Simkiss , K. 1961 . Calcium metabolism and avian reproduction. . Biol. Rev. , 36 : 321 – 367 .
- Smithies , O. 1959 . An improved procedure for starch gel electrophoresis. Further variations in the serum proteins of normal individuals. . Biochem. J. , 71 : 585 – 587 .
- Warren , D. C. and Scott , H. M. 1935 . The time factor in egg production. . Poultry Sci. , 14 : 195 – 207 .
- Contribution No. 136, Animal Research Institute, Ottawa, Ontario.
- Present address: Division of Animal Genetics, Indian Veterinary Research Institute, Izatnagar (U.P.), India.