Β§ Roberts S.J. Veterinary obstetrics and genital disease. New York: Published by Author, 1971.
Β§ Robinson R. Relationship between litter size and weight of dam in the dog / Vet. Rec. β 1973. β V. 92. β β 9.
Β§ Romagnoli S.E., Camilla F., Cele M. et al. Clinical use prostaglandin F2a to induce early abortion in biches: serum progesterone, treatment outcome and interval to subsequent oestrus / J. Reprod. Fertil. Suppl. β 1993. β Vol. 47.
Β§ Root M.V., Johnston S.D. Pregnancy termination in the bitch using prostaglandin F2a / Kirk' Current Veterinary Therapy XII. Small Animal Practice / Ed. by J.D. Bonagura, R.W. Kirk. β Philadelphia etc.: Saunders Co., 1995.
Β§ Rutteman G.R. Mammary tumors in dog / Kirk' Current Veterinary Therapy XII. Small Animal Practice / Ed. by J.D. Bonagura, R.W. Kirk. β Philadelphia etc.: Saunders Co., 1995.
Β§ Sancai Π’., Endo Π’., Kanayama K. et al. Antiprogesterone compound, RU 486 administration to terminate pregnancy in dogs and cats / J. Vet. Med. Sci. β 1991. β Vol. 53. β β 6.
Β§ Seaser S.W. Successful pregnancies utilizing frozen doe semen / A. I. Digest. β 1969. β V. 17. β β 12.
Β§ Seager S.W., Platf C.C. Collection and evaluation of canine semen / Vet. Clin. North Am. (Small Anim. Prac.). β 1977. β V. 7. β β 4.
Β§ Seager S.W., Platf C.C. Artificial insemination and frozen semen in the dog / Vet. Clin. North Am. (Small Anim. Prac.). β 1977. β V. 7. β β 4.
Β§ Sheffy B.E. Nutrition and Nutritional disorders / Vet. Clin. North Am. β 1978. β V. 10.
Β§ Silva L.D.M., Onclin K., Snaps F. et at. Laparoscopic intrauterine insemination in the bitch / Theriogenology. β 1995. β V. 43. β β 3.
Β§ Smith F.O. Update on freezing canine semen / Current Veterinary Therapy / Ed. by R. Kirk. β Philadelphia etc.: Saunders Co., 1986.
Β§ Sokoiowsky J.H. Reproductive patterns in the bitch / Vet. Clin. North Am. β 1977. β V. 7. β β 4.
Β§ Stabbs W.P., Salmeri K.R., Bloomberg M.S. Early neutering of the dog and cat / Kirk' Current Veterinary Therapy XII. Small Animal Practice / Ed. by J.D. Bonagura, R.W. Kirk. β Philadelphia etc.: Saunders Co., 1995.
Β§ Tsuitsui T., Kawakami E., Murao I. et al. Transport of spermatozoa in the reproductive of the bitch: Observation through the uterine fistulas / Japan. J. Vet. Sci. β 1989. β V. 51. β β 3.
Β§ White L.G. Secretions of the male reproductive tract and seminal plasma / Reproduction in farm animals / Ed. by Hafez S.S. β London: Bailliere Tindall, 1980.
Β§ Wichell J.J., Whitacre M.D., Yates D.J. et al. Comparision of the effects of Π GF2a and bromcriptine in pregnant beagle bitches / Theriogenology. β 1990. β Vol. 33. β β 3.
Β§ Woody Π.J. Prevention of estrus and pregnancy / Handbook of small animal practice / Ed. by R.V. Morgan. 2nd ed. β Philadelphia etc.: Saunders Co., 1988.