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Re: Switching from growers to layers



In message <[EMAIL PROTECTED]>, Jill <[EMAIL PROTECTED]> writes

"Krys Francis" <[EMAIL PROTECTED]> wrote in message news:[EMAIL PROTECTED]
>
>hmmmm
>yet your suggestion is to keep them on a higher protein and push them
even
>harder
I don't think that it's as extreme as you would suggest.
no but neither do you know

With all due respect... do you?


How would anyone know that what you've been told or have read is any more accurate than what the various feed companies or Victoria Roberts or anyone else recommends as a good age to change onto layers? You haven't given any real information.

The recommended ages for change seems to vary from feed company to feed company in UK, as it is their job to know about the correct balance needed for various stages of development It would be logical to expect the ages given to be a good approximation for their own particular products. You haven't given a good reason why this would not be the case. Indeed the proportions of types nutrient appears to vary from brand to brand too.

I have never seen info from any company, or anyone else, which states commercials give layers at age x & purebreds give layer at age y.
I have a few breeds which come into lay at a similar age to commercials (& earlier than some), would they get layers at age x or age y?


There are other considerations such as: Sexual maturity (age at first egg) & growth being affected greatly by environmental factors such as the shortening hours of light causing a delay in sexual maturity. Recommended ages for change can therefore only be an approximation not something rigid. Logic would suggest that if age at first egg is delayed then the change to layers should also be delayed.

but a finisher would be a description for a table bird not a layer

It's not a term just used for table birds. Some feed companies sell products called grower/finishers, to be fed after chick crumbs.
It's also sometimes used as a maintenance diet.


I forget
what do you have so strongly against barley
Its not a factor up here [its just not avaiable] but just curious

It's not just me, barley grain is fine for ducks not for chickens. I'm surprised that you don't know the reason.



as we are not given a true balance in any of the feeds available to the
domestic keeper
we do not know
so why guess

That depends upon where you got your figures from.
Since even amongst differing genyotypes of commercial layers the same feed will have different results it can only ever be a, hopefully, best an approximation. When combining the effects of genotype & environmental factors, the variation becomes more marked. So the feed companies must be giving an approximation to suit their feed.


vintamins and minerals are much more complex than that
there are hundreds of papers on it
not something you can precis here
but there are research papers on small % differences of this and that

As a vegetarian I have a reasonable knowledge of human nutrition. Enough to have a reasonable discussion with a nutritionist. From what I've read about the effects of vitamins & minerals in humans I think that poultry feed manufacturers would be unlikely to have ingredients such as vit A & D3 in the amounts necessary to cause damage.
No-one would expect a summary of every paper but I don't see why you can't give a conclusion with explanations. You wouldn't have to give a lecture in words of less than two syllables.



I have always warned of the extra percentage protein being a fishy problem
often

But you've not explained why. I've been reading about excess protein.
I don't have a problem understanding varying amino acids in different proteins


If you'd explained why about most of these points properly, then I possibly wouldn't have reason to quibble.


I wasn't suggesting that anyone who wants chickens just for eggs should
feed growers indefinitely.
but why should they for an extra month for no good reason ?

Delayed sexual maturity due to shortening hours of daylight & possibly other environmental factors is a pretty logical reason. If you know something which negates this you could explain.



sorry - I meant the plants not feed

Oh the plants.... Why they wouldn't be suitable here? We live on the side of the Aeron Valley rich vegetation & broad leaf woodland. Clay soil, rich in nutrients. Grain crops were grown on this farm till about 50 years ago when dairy cattle took over. It's in our large flat farmyard that things get rather boggy, in the other parts of the property the water runs off down the hill, in the ditches for the most part & into the stream at the bottom which in turn runs into the Aeron. There are a few large estates in this valley who grow these plant/grass mixes for their pheasants etc.



Someone recommended it for the non winter laying breeders. Why
do you say that this is a bad idea?
What is??
lost the thread here

Sorry, I'd misunderstood what you were saying.


It's a shame that we took to being pedantic about the exact age when layers should be given. An explanation about poultry nutrition would have been helpful, it wouldn't have needed to be in minute detail. I can't see that it would have been that difficult to write an informative post off the top of your head.

--

Regards


Krys www.lluestfarmpoultry.co.uk



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