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2. Artificial insemination in the horse;Bowen;Equine vet. J.,1969
3. The effect of semen extenders and sperm number on mare fertility;Pickett;Equine Reproduction. J. Reprod. Fert.,1975
4. Pickett , B. W. Voss , J. L. 1972 Reproductive management of the stallion Proc . 18 th A. Conv. Am. Ass. Eq. Pract 501 531
5. Artificial insemination in the equine. A comparison of natural breeding and artificial insemination of mares using semen from six stallions;Hughes;Cornell Vet.,1970