Saturday, February 28, 2009
Ancient pig breeding and modern pig breeding
Friday, February 27, 2009
Farrowing
I've been working on my farrowing skills, trying to cut down the number of pigs that I lose. My current success rate is relatively low. From live births to weaned I'm averaging somewhere around 60%. In the interest of improving, I've been looking at other peoples numbers.
Here's an interesting set of observations from Ron Plain, who is a professor at the University of Missouri.
"In 2007, swine herds that had one to 99 head averaged 7.53 pigs per litter; herds of 100-499 averaged 8.03 pigs per litter; herds of 500 to 999 averaged 8.43 pigs per litter; herds of 1,000 to 1,999 had 8.85 pigs per litter; herds of 2,000-4,999 averaged 9.10 pigs per litter; and herds of 5,000 and up averaged 9.28 pigs per litter. "
So red n blacks likely 6 weaned pigs is below average, but only 30%. If I had managed to save her 2 or 3 of her other live births we would have had a better than average, for this herd size, result.
The bigger the swine herd the more likely that the people doing the care have chosen this as a profession, and that they're using specialized equipment and breeding intensively for higher litter sizes.
Some other hog facts from Professor Plain:
"The smallest 75 percent of U.S. hog farms produce 1 percent of the hogs.
The largest 1 percent of U.S. hog farms produce 75 percent of the hogs. "
Most pork is intensively raised, at least 75% of it. Some of the smaller facilities might be intensive as well. You can run a small factory farm, too. Pasturing is a very small part of the overall pork market.
"Since 1930, the U.S. has reduced sow inventory by 42 percent and increased annual pork production by 221 percent. "
So we're producing more piglets from fewer sows than we were in 1930, due to both increases in litter size and better survival of the piglets.
The article that I found these statistics in is here.
Thursday, February 26, 2009
Turkey the cat and the Lettuce disaster
I caught turkey the cat killing my little turkey poults. The big turkeys were too big for her, but she killed 2 or 3 before I finally lured her over with some food. She'd been someones cat and was tame and friendly, but was obviously nursing kittens and was starving. So I didn't begrudge her the turkeys, but I did have her spayed. Notice that the tip of her right ear is missing. That tipping is how you indicate that a feral cat has been spayed. She seemed friendly, and I was ok with her being a barn cat. I took her home to tame her a little more, and ended up keeping her at the house.
Turkey the cat is in robust good health. Spayed and with a full set of vaccinations ($11 at the feed store) she's one of the few animals that survive being dumped. We managed to trap one of her kittens as well, a little white spitfire that is not at all tame. the kitten has been living in a dog carrier in our living room for a month or so now, so that we can tame it down enough to allow us to handle it and get it spayed or neutered when we figure out what sex it is. It still hisses and spits and claws, but it's getting a little calmer every day.
So tonight turkey decided to jump up on the light table and managed to knock over a tray of lettuce sprouts. it takes about 2 hours to replant 288 lettuce seedlings. Curious to see how many survive.
Wednesday, February 25, 2009
Farrowing pen experiment -- 50% success
But it turns out that this is pretty handy for making a temporary farrowing stall. So I've put down the two big hog panels, and then using the concrete pillars to anchor the corners I've got a good start. I then used baling twine to lash the "walls" to the "floor", and covered the floor with a good layer of hay. Now when the sow puts her nose down she's lifting her body weight and cannot push the wall up.
Then I put another hog panel down the center to provide two stalls, as big mamma was due to farrow.
To move a sow with piglets, what you usually do is go and quietly and calmly pick up the pickets and put them into a bucket or a milk crate. If the sow trusts you you can usually do this without the piglets squealing. You then RUN AWAY with the bucket of piglets, leaving one suckling on mom. You see, if the piglets start squealing, even the calmest mom will probably respond, and red n black pig was very protective of her last litter.
So after that Andrea grabs the last piglet and slowly draws it away from mom, trying to get it to squeal a little, and it does, and mom doesn't budge. hmmmm...
so we put all the piglets into the cab of the truck with the heater blasting to keep them warm, and got another livestock panel, and a piece of the electric fence rope. You see, the pigs fear the electric fence rope when it's off the ground. So you put the panel around the sow in a C shape open in the direction you're wanting her to go, and then show her the electric fence rope (which isn't attached to anything). She gets up to avoid it, the panel is there to keep her walking, and we walk her across the pasture to the hay barn. We make a big V shaped funnel, that's 60' wide at the opening, and narrows into the pen with sheets of plywood, and she walks into the funnel, and then straight into her pen. Then we give her back her piglets and make sure she settles down before we go get big mamma. Ok. both pigs in, plywood around the edge to provide a wind block, nice bedding of hay, food, water... all done.
Except that the 34" hog panels aren't tall enough. After doing this, big mamma climbed out over the 34" hog panel, broke a sheet of plywood and bent 2 of the T posts doing so, along with cutting one of her nipples and gashing herself in the front right armpit. I'm not sure that the nipple is going to stay attached. we're still waiting to see.
Red n black is peacefully nursing her litter there, and her remaining 6 piglets are doing well. They're still shivering, but they're protected and we can monitor their progress. In a few days we'll set mom and babies free in the pasture. later i put a piece of plywood over the top of one end of the stall to make a more "cavelike" area. She liked that and moved into it to lay down and be with her piglets. The other pigs come and visit her every day, and they all grunt at each other through the panels.
Summary: For big pigs, you need tall hog panels. 3' hog panels just aren't tall enough. 4' plywood walls aren't tall enough.
Tuesday, February 24, 2009
sow giving birth
Here the piglet finds its own personal nipple. As I've mentioned before -- this nipple will only be used by this piglet for the entire time it's nursing on the sow.
Another pig is born... She's had 7 piglets so far, but we haven't seen the afterbirth yet, so there's probably a couple more to come. After she's all done we'll move her back into the hay barn where it's a little dryer and more sheltered and we've got some heat lamps set up for the piglets.
Monday, February 23, 2009
Red n black jailbreak and piglets
Andrea and I worked with her until after dark, and left when she'd settled down to sleep.
When we checked on her the next morning, she'd gotten out, and we scouted around until we found her on top of her favorite lump of debris in the pasture.
She's still in labor at this point, and short of scooping her up with the front loader or using a crane, there's no safe way to move her. She's not going to move voluntarily.
Here four piglets are all working on their own nipple. Once they've chosen a nipple it is their own personal nipple for the entire time until they're weaned. So right now there's a lot of jockeying around as they decide who gets this nipple or that one. There are 14 nipples to choose from on red n black.
The fourth piglet is laying against mom underneath these three. The air temperature is in the 50s, and these guys are laying on the damp ground. So while moms giving birth I'm carrying a couple of bales of hay up to get some dry hay underneath these little guys. We'll move them into shelter when the sow is able to move, tomorrow.
This piglet decided that Andrea was pretty comfortable, and walked over and cuddled up to her. She dried it off with her shirt and then held it for a couple of minutes, and then put it back with the others. Remember, this piglet is less than 20 minutes old. They are amazingly complete at the moment of birth.
Here's that piglet back with its littermates. At this point we've got some dry hay under the mom, and dry hay under the piglets, and all of the piglets born so far have been wiped dry and are actively nursing. All is well.
Sunday, February 22, 2009
The red-and-black pig pregnancy
I talked about possibly putting red n black in a farrowing crate to see if I got better piglet survival, but realized there was a step that I could try before a farrowing crate. What I did was construct a stall out of T posts and hog panels under the roof of my hay barn. It's not heated, but does give her protection from rain. I bedded the stall with hay, and built it around a half of a supersack of food. The pigs like playing with fabric, tarps being a particular favorite, so I figured that the supersack of food would provide her with some entertainment as well as allowing her to eat as much as possible.
When a sow farrows, each piglet is the size of a 12 oz can of coke, and weighs about the same. The more piglets the sow has, the less each piglet weighs. Sometimes when you get a litter, you'll get 5 big piglets, and 7 smaller ones. The bigger ones tend to survive better. I don't know why there's a variation in size -- different mating, maybe? The boar will mount a sow several times to impregnate her.
After a sow gives birth, she delivers a large afterbirth, which she'll usually eat, so I don't have to deal with it. Just the birth alone will cause her to lose 50-75lbs of weight, both tissue and fluid. After that, as the piglets suckle on her, she'll lose another 100lbs. Talk about diet plans!
Here's big mamma, who's' the next sow that's going to give birth. She's a bigger pig in all respects, so even though she's pretty pregnant she's still got good ground clearance. Big mamma is about a foot longer and 6" taller than red n black. Both are adults.
Saturday, February 21, 2009
Last summer...
That's Taylor in the straw hat.
So here's some pictures and narrative from the 2008 trip.
The trip is 3 weeks long. So I'm skipping idyllic days of floating down a huge canyon, some of the best views on earth, beautiful desert scenery, ancient ruins... all sorts of stuff. One of the places we stopped at was redwall canyon. The first picture is from the front looking in, and the 2nd from the back looking out. It's HUGE.
Camps are pretty informal. Any sandbar will do. This was a small trip, so there were plenty of choices each night. We'd figure it out roughly how many miles we wanted to cover and then settle in for the night.
The side hikes are one of the best parts of a river trip down the canyon. This is a little slot canyon with a cool waterfall.
Susanna, happy to have made it.
Friday, February 20, 2009
Cornish cross and buff orpington chicks at 10 days
Here's a cornish cross next to the same bantam and box graphic
10 days later, here's a picture of a buff orpington chick and a cornish cross chick. Click on the picture for a bigger version. Notice the foot size on the cornish.
Both chicks are fed the same chick starter/grower, and both are kept in the same conditions. The cornish cross weighs 4x what the buff orpington does at this age.
We raise both cornish cross and heritage breeds. As far as eating, I prefer the heritage breeds, but some of our customers want the cornish, so we raise a few batches of them over the course of the year. They do pretty well to supply the demand while the heritage are growing out. This particular chick will be processed in 40 days, at about 6lbs live weight.
In a mixed brooder, you can tell which chickens are the cornish from the first day. They're the chicks that fall asleep with their head stuck in the feeder. The leghorns are the ones that run screaming from you when you feed them. The buff orpington chicks are calmer.