Archive for the ‘manure’ Category

A real California sheep producer in the eastern Sierra Nevadas

Wednesday, February 22nd, 2012

We raise sheep in the eastern Sierra Nevadas at an elevation of about 5,000 feet. It’s dry up here. Summers are hot and winters are cold. Seventy percent of our annual precipitation comes in the form of snow. Due to the climate and historical overgrazing, there’s not a lot of grass. But there is plenty of sagebrush and coyotes—coyotes who would like to think that lamb is on the menu! Oh, and did I mention the occasional mountain lion? This may not sound like the ideal place to raise sheep. But if you are willing to work at it, it can be done, quite successfully.

First, let’s talk about the climate. While not conducive to thick, tall, green pastures, our climate is also not conducive to the internal parasites that plague sheep in less arid regions. Larval stages of parasitic worms need moist grass to hatch from eggs and pass from one sheep to another. Not a problem here! We practice a method called FAMACHA, which involves examining the inner eyelids of the sheep to determine the level of anemia caused by the parasite load, to determine if and when a sheep needs treatment. While flocks in milder, more humid climates must be dewormed as often as monthly, many of our sheep are able to go years without being treated.

Cold winters (frequently well below freezing) certainly present some challenges. Ice covered water troughs must be broken free several times a day to allow animals to drink.  Hoses must be drained to prevent them from freezing solid.  Newborn lambs must be watched closely to prevent them from freezing to death.  And there are many mornings and evenings spent tromping through snow to feed.   However, the long cold winters do also help reduce parasite problems by breaking their life cycle.

If we don’t have much grass, then what do our sheep eat? Unlike cattle, sheep are browsers and well as grazers. This means that they will readily eat brush as well as grass. Our sheep will consume the small amount of annual grass that comes up each spring, but they will also browse on sagebrush and bitterbrush. During the fall and early winter, this brush makes up a major portion of their diet. In this way, the sheep form a symbiotic relationship with our land. The brush feeds the sheep, but the sheep also help control the brush that compete with the more desirable grasses. Over time and with proper management, we are able to use the sheep to actually improve our pastures.

During the worst part of the winter, the sheep are kept penned with access to a barn. During this time, feed must be brought to them. We provide them with locally grown hay and we’ve also recently begun feeding spent brewers grain. This high quality feed is what’s left over after making beer. While low in carbohydrates, brewers grain is an excellent source of high quality protein and fat, perfect for ewes raising lambs. Many breweries simply send tons of this spent grain to the landfill each week. By us feeding this grain, we are not only providing our sheep with high quality feed, but are also keeping it out the landfill. It is ultimately recycled back into our soil as composted manure.

Now, what about those pesky coyotes? We’ve got lots and lots of them here. Every dusk and every dawn, we can their yelping from literally every direction. And we see them plenty often too. I’m a little odd from a shepherd standpoint. I actually like coyotes. I appreciate their beauty and intelligence. Plus there are the mountain lions. We haven’t ever seen them but we know they’re there. We’ve seen their tracks and our neighbor had a colt taken by one a couple years ago. I can’t help but admire these predators; however, I do NOT appreciate them trying to eat my sheep. So this could leave me in a bit of a quandary. Enter Luke. Luke is a two year old Great Pyrenees/Anatolian Shepherd cross livestock guardian dog. These special dogs, of various breeds, have been bred for centuries to bond with and protect sheep from predators. It’s not something they’re trained to do. It’s something they do instinctively. They are gentle as a lamb (no pun intended) with their sheep, but absolutely fierce when a predator threatens their charges. We’ve never lost a sheep to a predator with Luke on duty and have actually witnessed him chasing coyotes out of the pasture. We will very soon be adding a female Maremma puppy to guardian team as well.

Luke and his sheep

Autumn tranquility in the eastern Sierra Nevada

Raising sheep up here really isn’t for the faint of heart. We’ve been snowed in for days at a time in the winter and we’ve evacuated more than once when wildfires got too close for comfort in the summer. But this is home and we love our animals. Sleepless nights tending to newborn lambs, aching muscles from hauling feed through knee deep snow, it’s all worth it when you see these gentle animals safely, peacefully grazing at the foot of towering mountains.

What do you do with all that cow poop?

Wednesday, June 8th, 2011

Many times we get asked the question “What do you do with all the poop from the cows?”.

The pictures below are a visual of how we turn what many think of as waste into a nutrient for our crops in our quest to be a sustainable and friendly to the environment dairy farm.

Cows poop it's just part of nature.

Just as the popular book Everyone Poops says poop happens, it’s just nature and as you can see above cows definitely do poop. So whether you call it poo, poop or manure among other names, follow along to see how we use it in an environmentally friendly way. The manure can either be a problem or a benefit depending on how one looks at it. We see it as a benefit because we can use the nutrients in the poop to fertilize the crops we grow to feed the cows.

Water flushes the manure into a collection system

The first step in removing the poop is to use water and flush it away from the animals into a collection system. By removing the manure it helps us ensure the health of our animals and manage the waste turning it into a beneficial fertilizer. We recycle water over and over by pumping it from the collection system back to flush the lanes so we don’t waste water.

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This sprinkler controller automatically flushes the poop away.

This sprinkler controller, possibly similar to the one in your yard, located in our milking parlor and automatically runs the flushing process, the controller turns the pump on and moves the water between 16 different valves. There is even a remote control we can use so we do not need physically be at the controller if we need to flush a lane independent of the program in the controller.

First stop in the poop collections system is the "Sand Trap", not the same trap you find on the back nine of your local golf course.

First up on the poop’s travel through the collection system is the Sand Trap, no Sand Wedges needed here! The Sand Trap is where the heaviest of the solid material flushed down the system settles out. We clean the Sand Trap every few days, the sand stacked and dried then reused in bedding. The sand is separated early in the collection because it is very abrasive, think sand paper, to the internal parts of the pumps used later in the process.

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The second stop for the poop is the settling pond where the solid manure remains.

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As the manure settles in the settling pond it also acts as a filter so only the liquid flows through this weir.

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The stacked manure drying

The second stop is the settling ponds where the solid manure settles out and then the manure becomes a filter so only the liquid moves into the next part of the system. The solid manure is then removed with an excavator stacked and dried for bedding using a process similar to composting to sterilize the bedding. (For more on how we use the bedding here is a post on Making the Cow Beds.)

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The dried poop is then moved into these rows similar to compost and sterilized for bedding.

You may wonder what happened to the liquid? The liquid continued on in the system while the solids stopped for a break.

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The liquid stays in this pond until used for crops or to flush the manure into the system.

The liquid is held in a big pond until it is either pumped into the flush system to clean the poop from the lanes or applied to the crops.

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This flow meter allows us to measure the amount of liquid applied to the crops.

The flow meter measures the liquid applied  so we only use the amount of nutrients necessary to grow the crops. We also sample the  liquid manure and analyze it several times a year for the nutrient content. The data from the samples is then used to mix the liquid manure with fresh water and apply only the nutrients as the crops need them.

Runoff from the crops is held here and reused many times.

To conserve water and keep the manure from leaving the dairy we use several ponds like this one to collect irrigation water and reuse it.

 From cow to crops, crops to cows, cow poop is very integral in our farms sustainability.


Planting the garden – Farm style!

Sunday, May 1st, 2011

Just remembered I had this post saved as a draft and never published it, silly me!

Here are some pictures of how we prepped the soil (using a little overkill) for our garden.

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We like to go BIG on the farm!

 We use our loader to get a scoop of the compost we make from the manure our cows leave behind.

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Adding our own compost to the garden.

 We mixed the compost into the soil to add vital nutrients that allows our vegetables to grow.

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Ready to plant!

The finished product!