Accelerated Queen Rearing

[D. Murrell]

Hi Guys,

I have used accelerated queen rearing to produce mated queens on a weekly basis rather than every two weeks which is the normal lenght of time. Basically, it works like this. A mating nuc is used to rear a caged virgin while at the same time, a free roaming virgin mates. When the mated queen is caged, the caged virgin is released and a caged ripe queen cell is inserted.

The same process is repeated with the caged cell hatching and the virgin is rearing in the same nuc , at the same time, as a free roaming virgin mates.

Grafting one bar/week into a single divided into a breeder side and a free flying starter-finisher side will yield about 13 excellent cells/week. Every two weeks the sides are switched.

This method can provide about 10 mated queens/week throughout the summer. It's a very easy and simple way to have a small, constant supply of mated queens.

Has anyone tried accelerated queen rearing? From my experience, it's not to practical for large scale commercial rearing but would fit the needs of a sideline operation or some who has a very short mating season, like the Alaskan guys.

Regards
Dennis

[db_land]

How do you produce the queen cells on a weekly basis?

[BerkeyDavid]

Dennis

This sounds like a very elegant program. Can you give us more details?

Here is what I see in terms of equipment:

One deep (or medium) divided into halves with the queen on one side laying, which are then grafted into cups, and then the cups are transferred over to the queenless side where they are finished off by the queenless bees. Every week you graft larva from the free flying queen side into queen cell cups which are then put into the finishing side (Queenless) where they are capped.

Every two weeks you transfer the queen to the other side, which then becomes the laying side and the old laying side becomes the finishing side.

Then there are 10 mating nucs, each with a caged and virgin queen. You take the best 10 finished queen cells and suspend them in the mating nuc. When the queen emerges the first time, you let her out until she is mated, then remove her. While she is out mating and flying about, you add another finished cell and wait for the queen to emerge. Then repeat.

Do I have it right?

david

[D. Murrell]

Hi Db,

The key is to harvest the sealed cells at day 11(from the time the egg was layed) just after the pre-pupa stage. The timing looks like this once its setup and running:

day 0 - egg layed

day 3 - egg hatches

day 4 - larva grafted

day 14 - grafted cells harvested and caged in nuc, hatched virgin released, mated queen caged

day 16 - caged cell hatch

day 23 - virgins mate

day 27 - mated queens begin laying eggs

It's seven days between grafting and harvesting the sealed queen cells. It's seven days between hatching and mating. And it's only five days between inserted the caged cells and their hatching. The seven day difference allows the two schedules to be slipped. And the two day difference between the seven and five days allows the hatched virgins to coexist. The 3-4 day interval it takes an egg to hatch is about the same time it takes for a virgin to be recognized also allows this timing to work so the grafting schedule versus the nuc schedule can be shifted 4 days apart. That is all grafts for the unit could be done on Thursday. And all nuc work for that unit is done on Sunday.

It sounds pretty complicated and it's somewhat hard to describe but very easy to do. If you're interested, I have an old schedule that I could make available.

Regards
Dennis

[D. Murrell]

Hi BerkeyDavid,

>Then there are 10 mating nucs, each with a caged >and virgin queen. You take the best 10 finished >queen cells and suspend them in the mating nuc. >When the queen emerges the first time, you let >her out until she is mated, then remove her. >While she is out mating and flying about, you add >another finished cell and wait for the queen to >emerge. Then repeat.

>Do I have it right?

Just about.
The queen cells must be caged so that when the virgin queen hatches from those cells she is confined in the cage.

At the same time a caged cell is put in the mating nuc. The mated queen is caged or harvested. And a caged virgin, which has previously hatched and matured in the same nuc, is released to mate. One week later, you do it all over again.

Sealed cells are harvested on day 14(from egg) if left in the rearer or day 11 if an cell incubator is used. The incubator permits the beekeeper to graft and harvest on the same day. but it's usually more hassle than its worth for a small amount of cells. I just go back into the rearer again, with as little disturbance as possible and
remove one cell bar.

The four day difference between 7 and 11 coincides with the difference between egg at day zero and grafting at day 4. So the grafting is done on a weekly basis 4 days before the nuc work. Or the duplex could be grafted every Thursday and the nucs worked on a weekly basis every Sunday. There's lots of other bee stuff going on that makes this possible. It sounds difficult but is actually very easy to do.

For caging cells, I grafted into JZ BZ plastic cups and then put them in the JZ BZ cell protectors when they were harvested. I enlarged the holes in a California mini queen cage so that the end of the queen cell protector would fit inside it. A JZ BZ cup filled with honey was inserted into the other hole in the mini cage.

This is how I worked the mating nuc. Use little or no smoke. First, I quickly inspected the cell cage in the nuc. The virgin should have hatched. The bees on the cage should be behaving themselves without any biting or balling behavior. If that behavior is observed something has gone wrong. Chances are another, slightly older virgin is loose in the hive. Don't release the caged virgin in that nuc or she will be killed.

If all is well, quickly locate the mated queen and cage her. Look for any eggs and newly hatched larva as indication of mating. There's not enough time for sealed brood.

If all is Ok so far, removed the caged virgin and press the caged cell onto the same frame with the screen exposed to the bees. Release the caged virgin into the broodnest. She will be photophobic but will often want to fly, so be ready to herd her into the nuc when necessary.

I've got an old field procedures sheet that I could make available if anyone is interested.

Regards
Dennis

[Michael Bush]

Now I've been thinking about this all day. So you end up with a cell or a virgin in a hair roller cage, a mating queen running around loose and a mated queen in a cage all in the same nuc and this doesn't cause any problems?

[ikeepbees]

"I've got an old field procedures sheet that I could make available if anyone is interested."

Dennis,

I must admit I'm interested. I too am a little surprised that having a caged mated queen, a caged virgin, and a mating virgin/newly mated queendoesn't cause any problems. But then I have very little experience with small mating nucs.

[D. Murrell]

Hi Guys,
I knew this was going to be hard to describe. And I didn't do a very good job of it.

>Now I've been thinking about this all day. So >you end up with a cell or a virgin in a hair >roller cage, a mating queen running around loose >and a mated queen in a cage all in the same nuc >and this doesn't cause any problems?

Once the process is going, when working the nuc, you end up with a mated free roaming queen and a caged-hatched virgin queen. The mated queen is caged and removed from the nuc. The caged-hatched virgin is released. And a new caged queen cell is put in the nuc.

This process is repeated every seven days. I have used it with Russian bees and it worked great.

Regards
Dennis

[D. Murrell]

Hi Rob,

>I must admit I'm interested. I too am a little >surprised that having a caged mated queen, a >caged virgin, and a mating virgin/newly mated >queendoesn't cause any problems. But then I have >very little experience with small mating nucs.

Sorry, my description was lacking. It may be clearer when divorced from the grafting aspects. It's an ideal system when used on a small scale. Steve Taber used it on a commercial scale when he was in the queen rearing business. He reported that it worked great for him beewise, but wasn't as flexible as the standard mating methods.

Timing is as critical as it is in grafting with only a 4 day window. It takes about that long for the colony to orient itself on the newly mated queen and about the same time for the hatched virgin to be recognized as a potential queen. After that, trouble with the virgin will occur. A good rule of thumb is to get the mated queen out of the nuc before her eggs hatch. It's more critical with some kinds of bees than others.

Regards
Dennis

[D. Murrell]

Hi Guys,

This schedule will make it easier to see. This software translates the reply text, which shows the post properly spaced, into some kind of proportional font which does not. To view it properly, copy this post into notepad:

01234567891123456789212345678931234567894123456789 5

e---G----s----N-h----R-mmmllC
.......e---G----s----N-h----R-mmmllC
..............e---G----s----N-h----R-mmmllC
.....................e---G----s----N-h----R-mmmllC

Days are along the top line.
Grafting cycles are read horizonatally with one per line.
Each character in the line represents one day.

e equals egg
G is Grafting
s queen cells sealed
N nuc caged cell
h is cell hatches
R is release caged/hatched virgin
mmm is virgin mating
ll is mated queen laying
C is Cage mated Queen

If a vertical line is drawn through the schedule, it's easy to see how the various cycles relate to each other.

I know why I confused everyone so much. When I raised cells commercially, I incubated them on day 11. And I erroneously typed day 11 as the day the nuc would be worked in a previous post. It should have been day 14 instead of day 11. Sorry :>(

Regards
Dennis

[ikeepbees]

This really is intriguing, Dennis. I think I understand now what is happening.

[db_land]

Dennis: Thanks for this great info. I havn't raised queens before but will try it using your approach this spring.

All: use the "courier" font in notepad to get the proportional alignment.

[Ian]

Got ya Dennis, you got me thinking

[Dick Allen]

Say Dennis, are you going to do an article on it for one of the beekeeping magazines? Heck, it's probably cold and windy in Casper this time of year with plenty of time to spend indoors.....

[D. Murrell]

Hi Dick and Everyone,

No, but I might generate a webpage. I didn't have a digital camera when I was raising queens commercially. So I don't have any pictures of the process or equipment. After the years, it just became so routine, I didn't think about writing or sharing much about it.

Combining accelerated queen rearing and using a duplex, free flying, breeder, starter/finisher (hows that for a long string of queen rearing words :&gt, is a great combination for a steady supply of a few cells.

I liked it because I could setup the duplex on my patio, in town, and work it at my leasure. The work would take less than ten minutes and wasn't very disruptive or conspicous to the neighbors.

A Cloake board is easy to use but the hive must be larger and must be broken apart to get larva for grafting if it's used as the breeder.

I've got another queen rearing method, based on the same principles, that works equally well for small scale rearing or commercial rearing. I think I will start a new topic as someone might be benefited by it.

Regards
Dennis

[D. Murrell]

Hi Guys,

I've made a web page concerning accelerated queen rearing. It's at:

www.bwrangler.com/bee/qace.htm

Regards
Dennis

[SIZE=1][ December 31, 2006, 12:23 AM: Message edited by: D. Murrell ][/SIZE]

[WG Bee Farm]

For those of you that have Steve Tabers "Breeding Super Bees" he has an accelerated system in the book that is "simular to the above system.

[danno1800]

Beautiful website, Dennis! Thanks for posting it. -Danno

[NW IN Beekeeper]

Dennis - Great website, always informative!

I think this system is very complete.
I also think the time schedule is very tight.
But I don't think it has provisions for "bad weather".

It concerns me that I have queens in the pipeline depending on the assumption that the other queens are mated and moved on in a timely mannor.

I'm not knocking the system (I've thought about calendars like this too and it looks good on paper) just seems that practical variables like weather, flow, and dearth could mess up the schedule and the yeilds.

A calendar gives great confidence that a program can be applied easily, one must consider how to "recover" in unfavorable conditions.
Do you shift your calendar back to day zero?
Do you scratch a week off the calendar? (likely)
A beekeeper can become flustered without a contingancy plan, or at least the realization that progress may not be "paper perfect".

JEFF

[D. Murrell]

Hi Jeff,

The accelerated schedule is very tight. But it's not as tight as any grafting schedule. I figure there's about a 4 day window with accelerated queen rearing and a 1 day window with the grafting schedule. So, when rearing queens by grafting, it's work them rain or shine :&gt

How a beekeeper handles the unexpected depends upon the scale and purposes for rearing queens. There are always breeder queens that take a break.
Starters that won't start. Grafts that don't take. Cells that hatch early or late. Queens that don't get mated(misses). Queens that aren't accepted. Honey flows while queen rearing, etc.

Some methods are more flexible than others. They spread the risk out over more time and require more hives. Grafting pushes the bees and it's great for rearing hundreds to thousands of queens. But it's not a very good method for raising just a few queens. It requires a good schedule, perfect timing, extra work and specialized equipment. Accelerated rearing just pushes that envelop a bit farther for maximum queen production.

I no longer graft, in the traditional sense, as I only run a dozen hives and no longer rear queens on a commercial scale. It's just too much of a hassle for so few a number of queens.

Here's what I do. It's the most flexible, hassle free way to do it. Just place a queenless split above a swarm board on a parent colony. Give them a rear facing entrance. Come back a month later and check it for a mated queen.

Regards
Dennis

[size="1"][ April 08, 2006, 07:51 AM: Message edited by: B Wrangler ][/size]