How much harm did I cause by feeding layer pellets to my young pullets?

None

 

No harm. Not the recommended way to do it but if they are doing what chickens do you are OK. If the extra calcium would truly harm them then think about what would happen to all of the roosters that eat layer feed too.

 

The free range may have helped in that they did not derive their entire intake from the pellets. As for damage, it would be internal and you'll never know, short of close inspection of their insides.

The over dose of calcium in layer feed is potentially harmful to any non-laying bird, including males. Layer is only recommended for actively laying birds, in most cases, that would be printed right on the package. "For Laying Birds".

The results of excess calcium is gout and renal tract, including kidney build up and damage. The 5% calcium in Layer formulas can be expelled by a laying female in the form of an egg shell. A non laying bird, either a juvenile or males of any age, has no capacity to expel that high level of calcium.


In short, you'll never know what, if any, damage may have been done to your pullets. You live, you learn, you move on.

 

It’s not how much calcium is in one bite, it’s how much total calcium they eat all day, plus how many days in a row they eat it. Like Fred said, if they were free ranging and foraging for some of their own food, it may not have been that bad.

It affects different chickens differently too. Some can handle it better than others.

 

So sorry to hear the farmer gave you some bum advice.

x2 what Fred's Hens and Ridgerunner said. You won't know if or how much damage was done (if any) without a necropsy, so if one of your hens dies in the next 12 months, you might look into that. I wouldn't worry about it much now, since there is nothing you can do to undo what is done.

Assuming that some damage has been done, one possibility is to select a layer feed on the low end of calcium. I've seen layer feeds as low as 3% and some as high as 5% in terms of calcium content. Should your hens not need all 5% of the calcium, they won't have any choice in the matter, since it is already mixed into the feed. And if they need more than 3% (if you can find that kind of layer feed), you can supplement with crushed oyster shell on the side. Perhaps in hens without compromised kidneys the potentially extra 2% calcium won't affect them much, but it might make a difference for your birds. Note that I am not a chicken nutritionist, just a regular chicken guy and perhaps someone will correct me here if I am off-track.

Or if you ever intend to have a mixed-ages flock or a rooster, you could solve all the issues by never feeding a layer feed. Feed a grower, starter or "all-flock" feed and provide crushed oyster shells on the side. Laying hens will eat the shells if they need them and those birds not laying will leave them mostly alone.

 

Just to chime in with my experience doing the wrong thing with feeding layer feed too early.

It appears to have done no harm when I fed my six-week old Brahma pullets layer feed back when I was beginning my flock with two adult adopted hens and continued to feed it until they began to lay, and afterward. The pullets grew up and led normal lives, laying eggs as they should and being beautiful and sweet, as Brahmas are. One is still alive and was laying up until last summer, but is otherwise happy and healthy at seven years.

So put it out of your mind. You didn't hurt your pullets, and there shouldn't be any ill effects from the layer feed.

This is one of the reasons why I dispensed with layer feed all together a few years back and now feed flock raiser with oyster shell on the side. It's just much easier when you have many different ages and stages of chickens. Besides, they prefer the taste of flock raiser over layer feed, hands down. Layer feed is over-rated, in my opinion.

 

I think the word "may" be fed.... notes a small amount of concern and sort of a disclaimer....


...click on pic to enlarge....

 

What type of birds are they, and what are your goals? (pets, meat, 2 years of eggs and then soup, etc?)


High calcium intake on developing birds is really rough on the kidneys - feeding layer ration to 12 week old pullets/cockerels does way more damage than feeding layer ration to roosters. Layer rations are also very low in protein, and developing birds can really use protein, so you may have stunted them a bit, which isn't a big deal if you're not eating them.


Like I said, depends on your goals - if they're leghorns and you intended to let em lay for 2 years and then replace, you probably won't notice much. If they're birds you intend to keep for their whole natural lives, they'll probably be a bit shorter.

http://www.ncbi.nlm.nih.gov/pubmed/4095065



EDIT: Any layer ration that has 5% calcium is junk - that's way too much for ANY bird.