STUD DOG'S CARE AND MANAGEMENT— 14 



litters and of individual registration are available for all these instructions 



papers signed, the number of puppies (see page 16). Careful records 



in each litter, and the like. Blanks avoid much argument. 



F— PHYSICAL CONSIDERATIONS OF STUD 



Artificial Mating 



There may be mating thru artificial 

 insemination. The semen of the male 

 is preserved in parafin capsules which 

 are placed in the vagina. Three or 

 four bitches can be mated with this 

 quantity. 



This particular method is not in 

 vogue. There is also the considera- 

 tion about identification of litter and 

 acquiring registration papers. A full 

 description of this method is found in 

 the author's Principles of Dog Breed- 

 ing. The American Kennel Club will 

 not register a litter from artificial 

 mating. 



In securing and testing the semen 

 certain precautions should be ob- 

 served. The room where the test is 

 being made should be warm. The 

 specimen should be obtained in a 

 rubber pouch placed over the end of 

 the penis (first and last ejaculations 

 usually do not contain as many live 

 cells). The rubber pouch (sterilized 

 before use) should be placed and sus- 

 pended quickly in a tube or vessel of 

 water kept at approximately 100 de- 

 grees temperature. Specimens for the 

 microscope should be withdrawn in a 

 sterilized syringe (or eye dropper) 

 and placed on a heated slide for the 

 microscope. 



Unwilling Stud 



If the^ male is a poor mater, per- 

 haps he is too fat, perhaps he is over- 

 fed, perhaps he doesn't get enough 



exercise. It would be well also to 

 have another male dog there but at a 

 safe distance in order to incite the 

 stud. Some males simply will not be- 

 come good studs. 



Stimulants can be given to males as 

 well as to bitches. Ovarian gland ex- 

 tracts are obtainable commercially 

 and have som<e virtue in causing the 

 male or the female to become sexually 

 excited. These may be had in tablet 

 or by injection. 



On the whole, nature is the best ex- 

 citor and if the stud dog is kept in 

 good condition, nothing more is neces- 

 sary. 



Normal Position of Organs 



The male possessing only one 

 testicle can sire a litter fully. The 

 other testicle is still in the abdomen 

 but likely is sterile. 



If testicles are not descended (nor- 

 mally they descend at about the age 

 of ten weeks), an operation some- 

 what dangerous may be resorted to 

 but if done after the dog is ten 

 months old, likely is of no avail as by 

 that time the heat of the body has 

 made the testicles sterile. 



Our observation has 'been that the 

 age of a sire does not in any way 

 affect the number of puppies in a 

 litter or the type of the puppies. 

 Further, the age of the dam (unless 

 over eight years) and the month of 

 mating have no effect upon the 

 number or stamina of puppies. 



Sperm or male cell magnified 1,300 times. The "tail'' furnishes the wiggling which in turn 

 furmshes the "motive" power in moving up in the vagina to meet and units with the ovorum 



or female generating cell. 



