REFERENCES
- Kirkpatrick B.W., Rutledge J.J. (1987), Biol Reprod., 39, 1027–1031.
- Newman S., Rutledge J.J., Riska B. (1989), J. Anim. Breed. Genet., 106,30.
- Penalba F.F. (1984) Selection for increased litter size in swine. Ph.D. Thesis, University of Wisconsin.
- Revelle T.J., Robison O.W. (1973), J. Anim. Sci., 37,668.
- Rutledge J.J., (1980) J. Anim. Sci., 51,868.
- Willham R.L. (1963) Biometrics, 19,18.
- Young L.D., Omtvedt I.T. (1973) Okl. Agr. Exp. Sta. Res. Rept.,177.