Veterinary MedicineAnimal SciencesRabbit MedicineReproductive MedicineSemen EvaluationSemen AnalysisTesticular PhysiologyEmulsionsPrecipitates
In this work I have applied to semen the biologic test for blood. This test is based upon the fact that when certain substances, such as bacterial filtrates, peptone, milk, egg albumin, albuminous urine, blood serum, etc., are injected into animals at intervals for a period of time they produce in the blood of the animals substances which form specific precipitates with the substances injected. Rabbits have been injected intraperitoneally with either semen or testicular emulsions of the dog, bull or man, at intervals of from two to six days and in quantities of from 5 to 10 c.c. at each injection. They received from five to eight injections each. The blood serum for the tests was diluted from twelve to eighty times and the semen or testicular emulsions from four to twenty-five times in physiologic salt solution. The blood serum of the rabbits injected with dog semen and with