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Artificial insemination studies were conducted on Berkshire (B), Hampshire (H), Yorkshire (Y) and Taoyuan (T) boars and on some of the crossbred sows. Data are given on conception rate, semen volume, sperm numbers and sperm concentration. When semen was collected twice daily, there was a reduction...

LIN, A. -T.
Research Report. 46-47 year of the Chinese Republic, 1959, pp 12-20 pp.