330 



THE 



GARDEN AND FIELD. 



becember, 1913 



French say, the hen cannot have a 

 double dose of this character, she 

 can have one (the other she has 

 swapped for the ri<jht of beinj;- a 

 hen) but even the one she cannot 

 pass on to her dautjhters unless 

 her mate has the character either 

 in sinjfle or double doses. -Suppos- 

 ing this doiK and we get on the 

 moth arrangement four possibili- 

 ties. 



Female, Power and Xo Power. 



Male, Power and No Power. 



It is the Blue Andalusian, .1.2.1 

 ratio plus the repulsion of sex. Une 

 of the cocks is equal to the Black 

 chick, he has two dosies. One. of 

 the cocks is equal to one of the 

 Blue chicks, he has one dose. One 

 of the hens is equal to the other 

 Blue chick and also has one dose. 

 The other hen is equal to the 

 White chick, she has no dose. 



Now how does the future hen 

 stand. 



On the first character she may 

 have power (call it 100 eggs) or 

 she may have no power (call it no 

 eggs). 



On the second character she may 

 have Power (call it 150 eggs) or 

 she mav have No Power (call it no 

 eggs). 



She may have two of the quali- 

 ties, one first character and one 

 second character, but she cannot 



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have more, consequently we have 

 the chance of no-egg hen, a 100- 

 egg hen, a 150-egg hen, 'or 250- 

 egg hen. She must obviously be 

 one of them. 



The chances that no power and 

 No Power will meet are remote, 

 the.y are a possibility, the chances 

 that the loo-egg power will meet 

 the 150-egg Power in the originat- 

 ing cell are also remote unless man 

 takes a hand — with the trapnest. 

 Nothing else will do it. Care and 

 feeding will raise the standard of 

 any degree of power, i.e., its ex- 

 l^iression in laying quality, but it 

 will not create a power which is 

 not present. 



We need not worrv about the 

 first character. Once that is pure 

 it will keep on like a game of bat- 

 tled oir and shuttlecock between the 

 two parties to the contract. 



The second character is different, 

 it can never be " pure " an^' more 

 than the Blue Andalusian is 

 " pure." The matter rests with 

 the male. He can be of three 

 sorts, he can have a double dose of 

 Power, a . single dose of Powea: or 

 No Power. 



If No. I, he can be mated with a 

 No Power hen and bv gi.ing one 

 of his doses to the female chicks, 

 which is all they want, every one 

 is a i'5c>-egg bird. If the hen hie is 

 mated with already has one dose 

 of Power (which she cannot trans- 

 mit) he can do no more, at least 

 we don't see how he can. His pul- 

 lets will still be 150-egg birds on 

 the second character. 



If be is a one dose bird, mated 

 with a Power hen he will give half 

 the pullets Powier and half he will 

 do nothing for, they will have No 

 Power. Mated with a No Power 

 hen he will also give half his pul- 

 lets Power and half will be No 

 Power. Here comes trouljle, he 

 passes on his Power to half his 

 sons but the other half he leaves 

 without. 



These are the third class birds. 

 To give th'em their due, they do 

 their best, for, if mated with a 

 Power hen, when the chicks appear 

 it will be found that he has 

 grabbed her cpiality and given it all 

 his sons and left all his daughters 

 un])ro\ided for, they are No Power 

 birds. You can see this arrange- 

 ment beautifully in the moth ex- 

 l)eriment'S. This chap is evidently 

 one of the causes of Mr. Pearl's 

 zero l)irds. We were glad to find 

 him for those pullets ])uz/.led us. 

 Mated to a 110 i)ower hen on the 

 first and second characters he 

 ought to .set a bright example of 



how not to do it. Perhaps the 

 Government struck this line at the 

 poultry stations ; seems more fea- 

 sible than a Roosters for Kg^s ex- 

 planation we have had in our 

 minds. 



— How to get the Two-Dose 

 Male. — 



That two-dose bird is an attrac- 

 tive proposition, not because he 

 can get good layers from poor ones, 

 that may be clever, but no one 

 wants to keep that class of hen 

 aljout, but because when mated 

 with good layers he gets all good 

 layers, he is double the value of 

 his one-dose rival, he cannot get 

 higher scoring birds but he can 

 get more of them. People perhaps 

 don't want to know his value, 

 that is pretty apparent, but how 

 to breed him. Is there any class 

 of hen from which he can be b'red 

 every time. The answer is, Yes and 

 No. About the most unsatisfac- 

 tory kind of answer there is. The 

 moths tell us, but we have had 

 about 'enough of them for the pre- 

 sent. 



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