Meat Bird sizes and grow times.

[Nekatlla]

But you stated you mixed that 21% with corn, which would reduce the overall protein intake.

Right, sorry for the confusion. I didnt cut with corn until the 4th week.

 

[rjohns39]

Add this to the above.
http://www.fertrell.com/analysis_tags/Poultry_tag_with_meth14.pdf

 

[junebuggena]

Right, sorry for the confusion. I didnt cut with corn until the 4th week.

Which would drop the protein content of the 18% feed down to about 16%, not enough to really support their growth rate. Next time you raise meaties, don't add corn to the feed.

 

[Nekatlla]

Which would drop the protein content of the 18% feed down to about 16%, not enough to really support their growth rate. Next time you raise meaties, don't add corn to the feed.

So I only buy 21% protein broiler mash ever. I cut that with corn to get to 18% protein broiler mash. But I only do that after the 3rd week is over.

 

[Rye]

Do you know the protein percentage of the Corn you're using?

It's really not that simple.

 

[Rye]

Also this time of year it's colder and the daylight hours are less. They eat less and use more of it to stay warm.

The strain of CC's may have something to do with it as well.

 

[Nekatlla]

Also this time of year it's colder and the daylight hours are less. They eat less and use more of it to stay warm.

The strain of CC's may have something to do with it as well.

Yup gonna try different feed next week, a good one like rjohns39 suggested, next year gonna try Cobb 500's

 

[Kmagers]

So I've been raising meat birds this year and have noticed something I'm hoping someone can set me straight on. Had some red ranger type broilers supposed to take 12-14 weeks to get to slaughter size/weight. We were able to slaughter 1/2 of the 50 birds for an average weight of 3.75 lbs at 14 weeks. I then had to wait for another 4 weeks to get the same average weight from the remaining birds. our next batch was CC's, arrived 8/7/17 first 8 slaughtered 10/16/17 thats 10 weeks, the next week we did 18 and the next weekend we did 14 , last weekend we skipped and we'll be finishing all but 3 this week end. Why are they not all ready at the 8 week mark like everyone says they will be? How do you set up a processing plant run for large batches if not all the birds will be ready? I can't imagine getting back some of the birds I would have sent at the end of the eighth week, average weights would have been about 2 lbs. Is this normal or am i doing something wrong?
The only thing i notice is they grow slow to age 7 weeks then pick up in groups. As we slaughter a group of big birds the next week the next bigger birds will grow a bit quick to the 6 lb live weight range. Once they're gone the next and so on. The last batch I separated and sent to a friends farm but still same results. Just perplexed. Is a 4 lb carcass above the norm? That's what we are shooting for and I know I've read on here about 6 lb carcasses and so on.

Broiler mash 21% for first 4 weeks then
Broiler mash 18% last 4-12 weeks

Any help appreciated.....
Thanks

Mine are doing almost the same thing. I am located in DFW Texas and I ordered in 110 Cornish cross chicks September 4 and they are still tiny and definitely not eating very much. I guess it’s the heat right now. But I have never Out Cornish crosses more than seven weeks, but it looks like growing them to 12 weeks or more is OK