SF 105 
 .S57 
 Copy 1 
 
 1 horoughbreds 
 
 How to Create 
 Them 
 
 With Breeding Chart in 
 Two Colors 
 
 Price $1.00 
 
 Copyrighted 1915, by 
 J. W. SHRYOCK, MISSOULA, MONT. 
 
THOROUGHBREDS-HOW TO CRE- 
 ATE THEM- WITH BREEDING 
 CHART IN TWO 
 COLORS 
 
 Price $1.00 
 
 Copyrighted 1915, by 
 J. W. SHRYOCK, MISSOULA, MONT. 
 

 Dunslan Printery 
 
 Missoula, Montana 
 
 MAY l!5 1.915 
 
 €)CI.A399783 
 
THOROUGHBREDS-HOW TO CREATE THEM 
 
 Introduction 
 
 But few persons engaged in raising live 
 stock of any kind, or those engaged in rais- 
 ing poultry.understand how to improve their 
 breed or how to produce thoroughbreds of 
 a particular strain. The reason why there 
 is not a more intimate knowledge of the 
 subject is because those who know, find it 
 profitable to guard the secret. 
 
 To breed a strain or line it is necessary 
 to inbreed. Mixing blood relations has al- 
 ways been abhorrent to man, but aside from 
 this, the mixing of blood relations in the hu- 
 man family, has its psychological side. It is 
 generally conceded that mind exerts a ma- 
 terial influence over: matter. The animal 
 possesses very limited reasoning power, 
 hence psychology can have no bearing upon, 
 or influence in, the creation or formation of 
 
THOROUGHBREDS— HOW TO CREATE THEM 
 
 tissue in the lower animals. They possess 
 no innate knowledge of the subject. This 
 point is abundantly illustrated in the rabbit 
 and chicken. As soon as sex develops in a 
 litter of rabbits; in fact, as soon as they are 
 weaned, the doe no longer exercises mater- 
 nal instindt over them. If allowed to remain 
 until sex develops, the doe will mate with 
 son and brothers with sisters. In the wild 
 or natural state, blood relationship is not a 
 consideration. The U. S. government has 
 practiced inbreeding in its tensest form at its 
 experiment stations, carrying it to the tenth 
 or twelfth generation without the least sign 
 of deterioration. 
 
 To avoid deterioration in a strain, it is 
 only necessary to keep, up the supply of new 
 blood, not from the outside with blood you 
 know nothing about, but from your own 
 herd, which is represented in the chart by 
 the middle line of progeny indicated by 
 
THOROUGHBREDS-HOW TO CREATE THEM 
 
 the letter X. This breeding chart is appli- 
 cable to all kinds of poultry or animals, but 
 for illustrative purposes the rabbit will be 
 used. What is said of the rabbit applies to 
 chickens, guinea pigs, etc. 
 
 Pedigree is a myth when applied to rab- 
 bits or poultry breeding because of the many 
 generations in a short period of time. The 
 pedigree of a rabbit only goes back three 
 generations; that is the one issued to you. 
 
 It is blood that tells, color and weight 
 being right, and it is the surest way to get 
 what you want. 
 
 In purchasing thoroughbreds, when col- 
 or and weight are right, it is more satisfac- 
 tory to know the blood proportions than to 
 buy the name of sire or dam because of 
 winning a blue ribbon. 
 
THOROUGHBREDS— HOW TO CREATE THEM 
 
 How to Create New Strains 
 of Poultry or Live Stock 
 
 The chart shows four lines of descent 
 and one line of new blood. The two lines on 
 the right show a preponderance of male 
 blood and the two lines on the left show a 
 preponderance of female blood in each 
 group or litter. The line in the middle, 1 X 
 to 5X, represents one half the blood of each 
 of the original male and female, (A and B), 
 and is a supply of new blood to be drawn 
 upon in keeping up the blood and vigor 
 of the drains, instead of resorting to the out- 
 side for blood you know nothing about and 
 may not give satisfaction. 
 
 The progeny of the X's mu^ never be 
 crossed one with the other, no matter if they 
 do present superior specimens. They must 
 be mated with one of the other strains. To 
 
THOROUGHBREDS-HOW TO CREATE THEM 
 
 mate one X with another X for three or 
 four generations spells failure and in chickens 
 this also means fewer eggs and a very small 
 per cent of them will be fertile. You can- 
 not make up the deficiency by feeding or 
 by using any artificial remedy. Breed by 
 the chart and you will find that artificial egg 
 produdion remedies are an unnecessary ex- 
 pense. 
 
 The black lines on the chart represent 
 the male B, and the red lines the female A. 
 
 The fractions in red represent the propor- 
 tion of female blood (A), and the fractions 
 in black the proportion of male blcod (B), 
 in the group immediately above them. The 
 letter A on the left represents the female or 
 doe and the letter B on the right the male 
 or buck, from which you wish to produce 
 a strain of rabbits of good blood. 
 
 If the doe A possesses a preponderence of 
 female blood from her parents that is great- 
 7 
 
THOROUGHBREDS-HOW TO CREATE THEM 
 
 er than the preponderence of male blood in 
 buck B, received from his parents then the pro- 
 geny from such a mating will show the char- 
 acteristics of the doe. If the preponderance 
 of male blood in the buck B received from 
 his parents is greater than the preponderance 
 of female blood in the doe A then the pro- 
 geny will take on the characteristics of the 
 buck. The doe may possess a greater 
 amount of female than male blood which 
 may be from 1 - 1 6 to 15-16 and the same 
 applies to the buck, (see chart). If female 
 blood predominates in the pair the charact- 
 eristics of the doe will be inherited by the 
 progeny, and vice versa if male blood pre- 
 dominates. If a doe from E is mated to a 
 buck from P there will be a preponderance 
 of female blood in the mating; if a doe from 
 H is mated with a buck from Q there will 
 be a preponderance of male blood in the ma- 
 ting. In the fir^ mating the progeny will 
 
 8 
 
THOROUGHBREDS— HOW TO CREATE THEM 
 
 possess the characteristics of the dam and 
 in the second mating those of the sire. 
 
 Information as to the proportion of blood 
 in rabbits or chickens you purchase is 
 never given you; they are all thoroughbreds 
 in the eyes of the seller. There are very 
 few breeders that know the blood status of 
 their stock, other than that they purchased 
 their originals for thoroughbreds or because 
 their parents won a blue ribbon at the fair. 
 
 To start a strain of rabbits, if you have 
 not the desired material on hand, you should 
 get the best you can buy from a reliable 
 and trustworthy breeder (such breeders are 
 very few in number). Because you are 
 quoted $23 for a buck or $20 for a doe, 
 it is no indication that rabbits at those 
 figures are any better than you can get for 
 seven to ten dollars from a reputable dealer. 
 The high price is a bait for those who think 
 they are getting a superior article for a su- 
 9 
 
THOROUGHBREDS— HOW TO CREATE THEM 
 
 perior price, or because of the blue ribbon 
 fad. Because of taking a prize gives you 
 no certainty that the prize winner will be 
 duplicated in its progeny, unless the breed- 
 er understands blood breeding and prac- 
 tices it. 
 
 Your fir^ step In strain breeding Is to mate A 
 with B, which will give you ^. Mate a buck 
 from^ back to its dam, A, and the result will be 
 
 C. Mate a buck C back to A and you get E. 
 Mate a doe from ^ back to its sire B and you get 
 
 D. Mate a doe from D back to B and you get 
 H. Now by mating the does and bucks of C 
 and D you get ^, again one-half the blood of A 
 and B. If you mate E and H or F and G, you 
 obtain the same result~one-half the blood of 
 A and B--and the same result obtains all the way 
 down the chart with similar matings. By study- 
 ing the chart you can figure out the amount of 
 male and female blood you will obtain by any 
 mating you may make and knew before making it 
 
 10 
 
THOROUGHBREDS-HOW TO CREATE THEM 
 
 whether the result will be profit or loss. The 
 chart illustrates how you can increase the propor- 
 tions of blood in the progeny or strain you wish 
 to develop up to |^, which is as near to thorough- 
 breds as you can approach. In England % blood 
 in cattle breeding is called full blood. 
 
 I append a table showing the amount of blood 
 of each of the original pair A and B resulting from 
 the different matings. 
 
THOROUGHBREDS— HOW TO CREATE THEM 
 
 TABLE 
 
 
 BLOOD 
 
 
 BLOOD 
 
 A + B= 
 
 = i'/2A'/2B 
 
 G + ^- 
 
 -J 3^2 A 
 
 II B 
 
 i+A= 
 
 =C 3/4 " 1/4 ■• 
 
 F+G= 
 
 -i Vi " 
 
 '/2" 
 
 i + B= 
 
 = D 1/4 " % " 
 
 E+A= 
 
 =L Ii" 
 
 5 » 
 16 
 
 C + A= 
 
 = EV6"Va" 
 
 H + ^ = 
 
 = M,V 
 
 11 «( 
 16 
 
 D+B= 
 
 =H '/s " % " 
 
 E + H= 
 
 -r/2" 
 
 1/2" 
 
 E+A= 
 
 = F ]l" ,'6" 
 
 L + M= 
 
 -^ '/2 " 
 
 '/2" 
 
 H + B= 
 
 ^ 16 16 
 
 K+^ = 
 
 21 '« 
 U 32 
 
 11 .« 
 
 32 
 
 E+C= 
 
 LT 13 .< 3 « 
 ~i^ 16 16 
 
 N+^ = 
 
 rv 32 
 
 21 «« 
 32 
 
 H + D= 
 
 — M 3 »« 13 " 
 ^i^ 16 16 
 
 K + M 
 
 = P ,'6 " 
 
 7 « 
 16 
 
 F+^ = 
 
 T 23 «« 9 '« 
 " 1 32 32 
 
 L+N = 
 
 -Q 4" 
 
 9 »« 
 16 
 
 The following matings will also give you half 
 bloods of A and B: 
 
 I + J 
 
 R 
 
 K>N 
 
 P Q 
 
 LxM 
 
 
 12 
 
THOROUGHBREDS-HOW TO CREATE THEM 
 
 You will note that F and G possess the highest 
 blood proportions of A and B which is the nearest 
 to full blood obtainable by any mating that can be 
 made. By mating either strain or line with the X 
 lines of progeny you will keep up the vigor of a 
 strain and maintain the characteristics desired. 
 
 Don't forget the preponderance of blood when 
 mating, especially when it comes to the question 
 of color. You should keep a record of your 
 matings showing the blood proportions. If you 
 place a doe or litter from K in pen 6 make your 
 
 K 
 
 record entry read A\^ B,^^ with date of birth. 
 The same information placed on the number 
 card of the pen will often save looking up the 
 record. 
 
 Lack of this knowledge of new blood accounts 
 for much discouragement and many failures in the 
 poultry business. It accounts for poor layers and 
 so much teeing out of incubators. Many try to 
 remedy the lack of egg production and deteriora- 
 tion of the flock by feeding.using artificial remedies 
 13 
 
THOROUGHBREDS— HOW TO CREATE THEM 
 
 and occasionally adding a new male bird, all of 
 which will not bring the desired results. You 
 must use system, produce new blood on both the 
 male and female sides, if you want eggs and fine 
 chickens. It cannot be done artificially with artifi- 
 cial remedies. Take nature into your confidence; let 
 her rules and laws work for you and you will obtain 
 a liberal supply of eggs and good stock without 
 the artificial remedies so liberally exploited today, 
 which are an unnecessary expense and fail in the 
 end. 
 
 Suppose you wish to start a new strain of rab- 
 bits, mate a white angora buck possessing half and 
 half male and female blood,with a steel grey Flemish 
 doe of similar blood qualifications and the progeny 
 will be white with a grey streak one or two inches 
 wide the whole length of the back, with spots on 
 either side, and grey on the head and ears. To 
 breed a strain of them follow the chart. 
 
 14 
 
-^(x 
 
 
 '\ 
 
THOROUGHBREDS--HOW TO CREATE THEM 
 
 Mating for Sex 
 
 Sometimes it is desirable to secure more males 
 than females, or more females than males. 
 
 To do this it is only necessary to note the pro- 
 portions of male and female blood in the matings 
 you wish to make. If the male possesses three- 
 quarters female blood and the female one -half, the 
 majority of the progeny resulting from the mating 
 will be female. If the male possesses three quarters 
 male blood and the female one-half, the resulting 
 progeny will have mere males than females. If the 
 male possesses three-quarters female blood and 
 the female three-quarters female blood there will 
 be but one or two males in the resulting litter. 
 Reverse the blood proportions and make it male 
 preponderance instead of female and there will be 
 but one or two females in the resulting litter. This 
 information is valuable to the breeder and it can- 
 not be obtained in any other work. 
 
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