From the ALBC
SELECTION
By J. M. Affleck
National Barred Rock Journal
June 1929
Selection is the most direct and powerful means of improvement at the disposal of the
breeder; indeed it is almost the only means of permanent improvement that is under
our direct control.
In most phases of the breeding problem the poultry man is an onlooker merely; but by
selection he becomes an active agent, and his acts are powerful for the good or evil in
controlling the destiny of the breed or variety which we handle. To a large extent he
supplants natures selection, and if he is to succeed he must be well grounded in four
fundamentals when he thus takes a hand in the course of nature.
1. He must have a clear idea of what he wishes to accomplish and persistently
adhere to the one ideal.
2. He must be informed as to the history of the breed he handles and of the
variations, which are most likely to occur.
3. He must know the general principles involved in selection in order to know the
forces with which he deals and what is likely to happen when he interferes.
4. He must know how far he may depart from sound practice on account of
economic or other considerations.
Common sense would dictate that ideals in selection should place utilitarian value first
and processing this, to add other minor refinements with caution, and not lose sight of
the primary purpose. Too many refinements or fads will greatly complicate problems
and endanger the original ideal.
In the effort to secure such refinements, we must not overlook the importance of
fertility, hatchability, vigor or longevity. The "shy breeder" never will advance you far,
even though possessed of superlative excellencies in all other ways, for first must come
the power of prolific production.
The more the matter is studied the more you will find that the excellence of a flock is
advanced or sustained, not by the general mass, but by a few exceptional breeders. This
exceptional breeder is often not the exceptional bird in appearance or performance. It is
only by making test matings and pedigreeing the progeny that you can spot these super
birds.
Now for the immediate problem in hand the selection of young birds as they reach the
frying or broiling stage. At this time most birds will be enough mature that we can judge
them with reasonable accuracy, and since we can make a good profit from them when
sold as fryers, it would seem good policy to be rather rigid in requirements. Naturally we
can and should be more exacting with the cockerels but it would be poor policy to keep
a pullet unless it fairly well fills the requirements as outlined below.
1. Any which are subnormal on feathering; any with split, twisted or dropped flights or
any other defect which goes with weak wing.
2. Any which do not show evidence of good nutrition by being well fleshed and
pigmented.
3. Any who do not move with poise and quickness and are well balanced upon their
feet.
4. Any bird whose head inclines to the crow head; too long and slender with beak
sagging in front of the eye. Heads should be blocky, broad, and carried well behind the
eye; beak stocky, curved and husky; eye large, bright and intelligent.
5. Any whose body is not solid, broad backed, with good length and depth. Keel should
be medium to long, and preferably straight.
Having made your first selection, you will have more room for the ones that are left.
Give them good range with lots of green stuff, feed a ration with not more than one part
of protein to seven parts of carbohydrates, and at six months of age they should be a joy
to the eye. Send broilers to market as soon as they are saleable.
Since chicks make the most rapid growth during the first few weeks of their lives, it costs
more and takes longer to put on weight after they have reached a pound in weight.
Chicks increase the weight 54% the first week, 65% the second, 55% the third week, 44%
the fourth week, 32% the fifth week, 28% the sixth week, 20% the seventh and 16% the
eighth week.
Separate pullets and cockerels as soon as the sexes can be told apart. Male chicks are
likely to be larger, stronger and more vigorous than the females so the pullets have less
opportunity to grow when brooded with them. Separation of the chickens should be
made to insure a more rapid and uniform growth of both pullets and cockerels. It
reduces the size of the flocks and gives more feeding and drinking space for the birds
left. Keep the cockerels which develop fastest as breeding males.
I pretty much think this sums it up