A little journey among Anconas . rel from group 5 matedwith a pullet from group 3, and a cockerel from the produce in group S matedwith a pullet from group 10. The result in group 13 gives us the same pro-portions of blood, but derived through a cockerel line of breeding. Whenever a cross is necessary in a strain, such a chart also shows theprocedure that should be followed. The cross is treated as a new unit, andits produce remated back to the home strain in the same way, carefullyselecting for the desired type as before. This is what breeders and fanciersterm breeding back to a strain, and t
A little journey among Anconas . rel from group 5 matedwith a pullet from group 3, and a cockerel from the produce in group S matedwith a pullet from group 10. The result in group 13 gives us the same pro-portions of blood, but derived through a cockerel line of breeding. Whenever a cross is necessary in a strain, such a chart also shows theprocedure that should be followed. The cross is treated as a new unit, andits produce remated back to the home strain in the same way, carefullyselecting for the desired type as before. This is what breeders and fanciersterm breeding back to a strain, and the philosophy of it can be clearly under-stood from such a diagram as that before us. Every cross thus involves moreor less breeding back to the line afterwards; but this need not be carried tothe extent of incestuous matings, or interfere with vigor in any degree. Theout-cross is not used as immediate material, but to provide either pullets orcockerels for really breeding into the strain the following year. 46 ./ LITTLE JOVRXEY. Mr. Slii-pptirJ am] his SiiprriN/nu/riif srlrt-fin;^ sann rhoiri fcininiis s/ork I lu kc> to succcsstiill\ carr\in,u on this work ttt hrccdnif^ in lint- is in tin-words:—Here begins the real work ot tlie breeder, since tliese mates nowtaken trom group 2 must be must carefully st-hutril fo typi,—and again areto be rigorously selected Inir In type as before. Not only must they beselected Inw hi lypi\ but the\ must be selected with a special view to full streng-th and \ugor, and e\er\-specimen rejected that shows the least bit of weakness,or lack ot vigor. It the breeder will but lift himself to that high level ofselection he need have no fear of incurring the painful penalties of inbreed-ing. Mr. Wright himself is strenuous lor the most painstaking care in select-ing the breeders. \\ hen considering the introduction of new blood into thestrain, by an out-cross, he says:—In all cases birds from the cross shouldbe selected lor further breeding wit
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Keywords: ., bookcentury1900, bookdecade1920, bookidcu3192400310, bookyear1922
