Cookies on Animal Science Database

Like most websites we use cookies. This is to ensure that we give you the best experience possible.

 

Continuing to use www.cabi.org  means you agree to our use of cookies. If you would like to, you can learn more about the cookies we use.

Animal Science Database

Supporting your research in animal production, welfare and health

 Sign up to receive our Veterinary & Animal Sciences eNewsletter, book alerts and offers direct to your inbox.

Results per page:

Search results

Abstract

In the new type of artificial vagina a spiral ring, similar in size and shape to the spiral part of the boar's penis, surrounds the rubber inner tube, giving the proper pressure when the penis is being introduced, and tending to prevent backflow of the semen. Use of the new type of vagina did not...

Author(s)
NIWA, T.; MIZUHO, A.; SOEJIMA, A.
Publisher
Chiba.,
Citation
Bull. natn. Inst. agric. Sci., Tokyo, 1959, 18, pp 45-56
Abstract

The method used by the Japanese in the artificial insemination of pigs is described. Practical details are given about the properties of boar semen, its collection, dilution and storage, and the technique of insemination.
The av. duration of ejaculation in the boar is 6 mins. 36 secs. The part of...

Author(s)
NIWA, T.
Publisher
Chiba-City, Japan : National Institute of Agricultural Sciences,
Citation
Artificial insemination with swine in Japan., 1958, pp 13 pp.
Abstract

THE authors designed a new artificial vagina for the boar (Zootechnical Experiment Station Type) in 1939. The best method for collecting boar's semen is by the use of a dummy and an artificial vagina. The average duration of ejaculation is 6 mins. 36 secs. (2 mins. to 23 mins. 35 secs.). As the...

Author(s)
ITO, S.; NIWA, T.; KUDO, A.
Citation
Research Bulletin. zootech. Exp. Stn., 1948, 55,