late summer kohaku's - selection
We seine netted the late summer kohaku's and selected through them yesterday.
You may notice the body shapes are different to the early summer spawning. There are more koi with prettier patterns, and far less koi with red in the fins than the early summer ones. Interesting results at the 3 inch stage and I will start to have a better idea on their future potential at the next stage.
Size wise - average length of 3 inches, with the largest ones at 4 inches and the smallest ones at 2.5 inches, and maybe just under.
For a spawning that reached 1 inch faster than anything else I've bred - and they were quick to 2 inches. Thereafter , the extra cm's have come harder than with the early summer kohakus. Could be weather conditions - shorter days, and lower temperatures. Particularly at the time of harvest - and I wonder whether they simply took some time to adapt to moving from the fry pond to the recirculation pond - because growth over the last couple of weeks has noticeably increased and fingers crossed it carries on like that.
I have my new air source heat pump in place, and I am using that to keep the growing on tanks at around 24 degrees C. We're still feeding manually and I really must sort some auto feeders because I think we could get an extra feed in that way.
In the next couple of weeks I need to finish off insulating the pipes and filters, and the inevitable pond covers will have to go into place.
I kept 282, and 322 were moved into my "for ebay" tank.
With light fading at the end of the day - I just had time to take group shots of all 282 for the record. here's a selection of the pics:
I've kept the benigoi with the black mark. Just need a few more of those to come through on it's back. I'm giving it one, possibly two more selections. |
This is how I typically take the photos; a group of koi go into the bowl. Black plastic sheet behind, and I take the picture from the front usually with a flash. |
You may notice the body shapes are different to the early summer spawning. There are more koi with prettier patterns, and far less koi with red in the fins than the early summer ones. Interesting results at the 3 inch stage and I will start to have a better idea on their future potential at the next stage.