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Abstract

AI with semen from 2 Landrace boars that had been stored for 22.6 years resulted in the birth of 10 and 9 piglets, respectively, from 2 sows 115-116 days later. AI with semen from another 3 boars that had been stored for 25-26 years did not result in pregnancy.

Author(s)
Niwa, T.; Hashizume, T.; Mori, A.; Matsubara, E.; Yoshida, S.; Kitazume, K.; Matsumoto, N.
Publisher
Japanese Society of Swine Science, Atsugi-shi, Japan
Citation
Japanese Journal of Swine Science, 2003, 40, 4, pp 186-194
Abstract

The following reviews were included in a volume published in honour of T. Bonadonna. The papers abstracted appear in the appropriate sections of ABA.Laing, J.A. Artificial insemination and the prevention of disease : 149-151.Macpherson, J.W. The protection of semen from contamination :...

Publisher
Bologna, Edizioni Agricole.,
Citation
Riproduzione animale e fecondazione artificiale., 1972, pp 331 pp.
Abstract

Niwa, T. [Artificial insemination in swine]: 95-98.

Citation
Japanese Journal of Swine Husbandry Research, 1977, 14, 2, pp 95-124
Abstract

Author(s)
Niwa, T.
Citation
Korean Journal of Animal Reproduction, 1979, 3, 1, pp 26-29
Abstract

Papers abstracted appear in the appropriate sections of ABA. King, G.J. Occurrence of postweaning estrus in primiparous and pluriparous sows : KA12. Korenic, I.; Akakumovic, D. Possible benefits of planned induction of farrowing : KA21. Lorrmann, W.; Hahn, R.; Zoder, H.F.; Treu, H.; Coster, G.;...

Publisher
Zagreb., Yugoslavia
Citation
Proceedings, 5th World International Pig Veterinary Society Congress, 13-15 June, 1978. Hyology and Hyoiatrics., 1979, pp 195 pp.
Abstract

Author(s)
Niwa, T.
Citation
Japanese Journal of Swine Husbandry Research, 1974, 11, 2, pp 121-125
Abstract

Author(s)
Sasaki, K.; Niwa, T.; Tanimura, I.
Citation
Bulletin of the Laboratory of Artificial Insemination, Iwate University, 1981, No. 1, pp 1-12
Abstract

During freezing of semen in dry ice-alcohol or liquid nitrogen, 7 patterns of formation of ice crystals were observed, depending on freezing rate. These are illustrated in microphotographs.

Author(s)
Niwa, T.; Taguchi, K.
Citation
Bulletin of the Laboratory of Artificial Insemination, Iwate University, 1981, No. 1, pp 21-35
Abstract

Seminal plasma from 25 Holstein Friesian bulls and 8 Landrace boars contained 0.95±0.25 and 1.00±0.32 ng/ml PGF resp.

Author(s)
Niwa, T.; Hashizume, T.
Citation
Bulletin of the Laboratory of Artificial Insemination, Iwate University, 1981, No. 2, pp 1-6
Abstract

The accuracy of diagnosis was 97.1 and 100% for 182 sows examined ≥21 and ≥36 days resp. after mating. The method of examination is described, and the criteria for early diagnosis based on palpation of the middle uterine artery, cervix, ovaries and uterus, and the appearance of the vulva, are...

Author(s)
Sawada, M.; Niwa, T.
Citation
Bulletin of the Laboratory of Artificial Insemination, Iwate University, 1981, No. 2, pp 33-42

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