Abstract
The competitive ability of sperm from an initial turkey male in a mating with that of a replacing sire has been evaluated by Kosin and Wakely (1950) and Harper and Parker (1952). The results of these investigators indicate that the technique of shifting sires in single-male-matings is somewhat more limited with turkeys than with chickens. Spermicidal action on turkey semen in vivo should accommodate the possibility of obtaining more than one sire group of progeny from a given group of females.Iwanow (1924) found that female chickens laid fertile eggs after a spermicidal solution had been flushed through the oviduct. Baker (1931) reported that 06% lactic acid had definite spermicidal effects on guinea pig sperm in vitro.For the purpose of investigating the role of a spermicidal agent in inhibiting the persistency of fertility from the initial male or males of a mating in which the sire or sires have …
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