Showing posts with label EPD's. Show all posts
Showing posts with label EPD's. Show all posts

Friday, February 3, 2012

Buying Bulls

 I've shown our bulls before, but realize the majority of my focus tends to be on the cows, and their calves. Today I'm highlighting the men of the operation.
Bulls are half of the genetic contribution to each calf, and while a cow is very important in a lot of ways, she raises just one calf a year. A bull, on the other hand, will sire an estimated 25-30 calves per year (some do less, some do much more). One key area of importance with bulls is their genetic influence within a herd, and the fact that it will last for decades.
Because of the ability of a single bull to influence a herd, we spend a lot of time and effort and money making sure we buy bulls who will sire both bull and heifer calves we like phenotypically, and who will excel in specific performance related areas that are important to us.



First, we do our research. We check out potential sires of the bulls we will buy in semen directory catalogs, or online (you can check out one website I use here). Shown above is a page from a semen directory, with two popular sires. Producers can purchase semen from these bulls, and artificially inseminate their cows to them. This system is one way both registered and commercial cattlemen can have access to the best and most elite genetics available in the cattle industry when breeding their cows.
We buy registered Black Angus bulls, which have a lot of information recorded on them, including pedigree information, and a plethora of production related information, and how likely he is to pass those performance traits to his offspring.



Here is some of the information on the bull from the right page above, who is called Bismarck. Every bull has a name, that often includes numbers. You can see his pedigree over by the picture of the cow. The first three capitalized letters proceeding the actual name represent the ranch or people who bred the bull. For instance, SAV, stands for Schaff Angus Valley. Bismark's dad is GAR Grid Maker, and his mom is SAV Abigale 0451, and SAV Abigale 0451's dad is Schoenes Fix It 836, and her mom is SAV Abigale 6062.
Pedigrees are one part of our research. We like some bloodlines of cattle, and won't buy bulls with too much influence from other bloodlines. This is usually due to one or more traits a bloodline is known to carry, and pass on to their offspring.
Then there are the numbers, perhaps you noticed them at the top of the photo? Every two or three capitalized letters are an abbreviation for a genetic trait of importance. The number highlighted in blue is that bulls performance indicating number for that trait, and the number below that is his accuracy for that trait. The percentage number at the bottom of the grid is how he ranks in the breed.
For example, CED stands for Calving Ease Direct, and is a measure of the ease, or difficulty, this bulls calves will experience when being born. In this trait, a higher number is better, and his 13 (that's a high number in this instance) means his offspring shouldn't have any trouble. The .93 is a high accuracy for the trait, which means there is a lot of data recorded on actual offspring of this bull that were used to calculate his performance. But, you have to use all the numbers in combination, and weigh and measure them against each other to get the perfect mix that you want in your herd. Going right from CED, BW = Birth Weight, WW = Weaning Weight, YW= Yearling Weight, and so on. Each of these traits, (CED, BW, WW, YW), is called an EPD (Expected Progeny Difference).
Every breed has EPD averages for every trait you see. The numbers are a comparison of how that bull compares to other bulls in his breed, and how is progeny will differ compare to those sired by other bulls. As a rancher, I have a good idea what the breed average is for each trait, and I have my own requirements of what numbers a bull must have in each of those traits before I will buy him.




After we do our research on sires, we get out our catalog and mark any bulls that work for us on paper. That means they have the right numbers in all of those different traits for us, and their pedigree doesn't include certain individual's we don't like. Different ranchers will have different requirements based on the environment their cattle live in, how they market their cattle annually, and what their feed program is, to name a few examples.
Ranchers who sell bulls often have a sale, and they will send you a catalog if you request one, or have purchased from them in the past. Catalogs are a compilation of information on all the bulls in the sale, with their pedigrees and how they perform in all those EPD areas.



If a producer has enough bulls that meet our requirements on paper, we may attend their sale. At the sale we look at all the bulls for physical traits of importance.
First, they must structurally correct. Just as different humans have different bone and joint problems that limit their mobility, so do cattle. If we buy a bull that has an unsound skeleton, he is significantly less likely to hike over our rough terrain, and make sure he gets as many cows bred as possible in a breeding season. And, let's be honest, that is his one job each year. Structural incorrectness increases his odds of personal injury, and he can pass those problems on to his offspring. Just like your dad passing his bad knees on to you...
There are also physical attributes that indicate how a bull will perform in certain areas. EPD's, and all that information I showed you, is relatively new to the cattle industry. It's been used heavily since the early to mid 1990's. Some people still don't use EPD's as a selection tool when buying bulls, but we believe in using as much information as possible to make the best and most well-informed decision.
One thing to check out physically is the shape and size of a bulls shoulders, and the shape of his head. These are typically among the "problem spots" when calving. If a bull has smooth shoulders and a relatively long, narrow head, he's likely to pass them on to his calves, and they will be born with ease compared to calves with big, bulky shoulders and a big, fat head. Usually.
Third, a bull has to have the style and look we like. As in all things, different people have different taste, and cattle are no different. I'm really not kidding. All black cattle do not look alike.
You can get short, wide, massive bulls, or long, narrow, tall bulls. Obviously those are extreme examples, but you get the idea. My dad and I both have very specific tastes, and also as with most things, if we're going to buy a bull, we much prefer him to have the look we like. This is the "cuss and discuss" part as we call it, and we will give each other a very hard time about specific traits that one of us likes and the other doesn't : )
As we find bulls that meet our physical requirements, we write them down, with notes for areas they excel or are weak in.
Then, we combine our physical picks with the bulls who made the grade when we looked at the catalog. Any bull that passed in both areas is one to potentially bid on. We will have favorites rise to the top as we go through this process, and they will be our top picks to purchase.
A budget is set based on how deep our checkbook is prior to attending any sale, but upon arriving we will discuss how much we would be willing to spend on each bull we have marked. Dad and I like to go together, but either one of us will also go alone to bull sales.


Then the sale begins. Each bull is sold individually, in an auction-style method. Some sales are held at a local sale barn, and some ranchers have their own set of facilities on their place. You have to pay attention, and make sure you understand what price the auctioneer is at if you're bidding. If he's a good auctioneer it's not hard once you get the hang of it.
Then if all goes as planned, you will leave with your top choices for well under budget : )
Not everyone buys bulls like this, and there are lots of successful ways to buy good bulls. But, if we're buying bulls at a production sale, this is the process we go through.
To give you an idea of what bulls cost, most Black Angus sales in our part of the world averaged $3,500 - $4,500 per head last year. So far this year they are higher than that, with some averaging over $5,000 per head.
We use bulls for four years. Any longer and you run the risk of inbreeding, and the potential for sexually transmitted diseases increases. Plus, introducing new genetics is a good thing. A percentage of bulls you buy will not make it to their fourth year, and some don't even make it through their first breeding season due to death or personal injury.
The bull sale season is hitting high gear right now, and there are sales every weekend for the next several weeks. I literally have a stack of catalogs and flyers from different producers that is several inches thick.
This is one of my favorite activities in ranching, because it is how you introduce new, "better" genetics, and improve your herd through selecting bulls with specific traits and attributes. I love the entire process.

Monday, January 31, 2011

Bull sale season

The season of bull buying is upon us in Wyoming. Starting around the first of the year it gears up, peaks in February and March, then tapers off in April. It's a great time of year, spent marking stacks of catalogs, looking through pens of bulls, and potentially buying one or more in the auction.
Purchasing bulls is how we introduce new genetics into our herds. Bulls need to be replaced every few years (4 in our case) to prevent inbreeding in a herd. They're how we make genetic improvement, and are my big area of responsibility within our operation.
A lot of information and technology is involved in buying bulls today. Different bulls are bred different ways on purpose. Some are bred to produce outstanding female calves, others are bred to produce steer calves that will grow faster than average calves will. Some bulls are really big, others are smaller. Some will have calves that are born weighing 100 or more pounds, and others will produce calves that weight 60 pounds at birth. It's all about selecting what works for your operation, and buying bulls that will take you in the direction you want to go.
It is my belief that you can buy bulls that will do everything you want them to in your herd. With all the advances in technology and breeding today, I don't think you have to sacrifice in one area to excel in another with cattle. We take this approach when selecting bulls for our herd, and are only interested if they meet our standards in a number of specific areas.

Commercial producers also utilize Artificial Insemination (AI) to breed cows, but bulls are used more often where I'm from.
Seedstock producers raise registered cattle, which means they record their pedigree information, work with a breed association, and keep specific data on individual animals among other things. These producers use AI a lot in their herds to gain access to the most current and progressive genetics, and for a number of other reasons. They typically offer their bulls for sale in an auction each spring, and some sell heifers and/or cows in the fall. Bulls are typically between one and two years old when they're sold. They list each bull, his pedigree, and performance information in a catalog, which they mail out to potential customers.
There are well known sires that have specific traits of merit that are popular each year. Pedigrees are one important area, and you want to make sure you select animals with pedigrees you like, and avoid those with ancestors you don't like, or have used a lot in recent years.
There are also Expected Progeny Differences (EPD's) calculated on each bull. These are a series of numbers that explain how a bulls offspring are expected to perform in comparison with other bull's progeny. They predict how much a bull's calves will weigh at birth and weaning and yearling ages, how much milk their daughters will produce, and how calves will exhibit carcass traits as compared to other bull's calves. They are the most widely used form of predicting calf performance out of a specific bull today. It's important to understand and be familiar with the EPD's, and their implications.
There are also ratios, which show how a bull performed compared to other bulls within the herd he was raised in. A ratio of 100 is average, so if a bull is over 100 in a given trait, he is above average in the herd.
Actual measurements are also taken on individual bulls. These include things like scrotal circumference, which has a direct impact on fertility and the age a bull's daughters will reach maturity. A number of carcass and feeding traits can also be measured, and supplied to help customers decide which bulls to bid on.
Here is one sire that you might buy sons out of at a bull sale this year. Here is another, if you want to compare. Every number you see has a specific meaning that is related to a performance, carcass or maternal trait, like growth, milk production, or marbling. Each of these numbers also has an accuracy number associated with it, and as bulls sire more progeny, their accuracy goes up.
Breed associations and producers work together to compile all the information necessary to calculate these EPD's, and keep track of pedigrees.
At the bottom the page you can see their pedigrees. The names all have a meaning, and typically go back to old, well known and respected bloodlines of cattle. The individual letters, or first word in the name, represent who bred that particular individual. Some seedstock breeders are famous nation, or worldwide, and their cattle will all have their initials, or their last name, in front of each animal's name.
We take a three-prong approach to buying bulls - we look at all the performance data, the actual animals, and the price.
For our operation I go through each catalog, and select bulls that meet our strict requirements based on their EPD's, ratios, performance data, and any other information presented. I mark these, and if a sale has enough bulls the meet our criteria in this area, we will go.
When we go to a sale either myself, my dad, or both of us attend. We look at all the bulls, and make notes about them. We look for things like structural correctness, balance, width, depth length, eye appeal, and a number of other, more specific things.
This is the fun part, and its also interesting because my dad and I like different things in cattle. He likes really long, smooth and well balanced bulls. I like massive, wide, expressive bulls. It keeps us on our toes trying to find individuals that we both like.
If a bull meets our standards based on his looks, and he was checked in the catalog for his EPD's and performance information, then he is one we will potentially buy. We also rank bulls after we've looked at them, and select our top one, two or three to buy based on everything in combination.
Then the auction starts, and each animal is sold one at a time in a live bidding situation. We have a strict budget of how much we can spend, and if we're both in attendance we will discuss our limit on our top few bulls. We bid on the bulls that have passed our visual and performance inspection, and if they're within our price range we might buy them.
I find it a fun challenge to keep on top of all the pedigree and EPD information, and find bulls that combine everything we want, for a price we can afford. It's a a great time of year!