rbST
Technology
Adoption
of Agricultural Technologies and the Economics of bST
John Fetrow, VMD, MBA, Chair and Professor University
of Minnesota
College of Veterinary Medicine
St. Cloud Dairy Expo95 Proceedings
St. Cloud, MN
December 13, 1995
Adoption of New Technologies in Agriculture
Agriculture is the original technology. Adoption of agricultural
techniques moved humans from societies of nomadic hunter/gatherers
to geographically-stable sustainable communities. Civilizations
and governments rest on their ability to feed their people. All
other technology, culture, and human advance stand on the foundation
of agricultural technology. Each new agricultural technology has
advanced the ability of fewer farmers to feed more people. In a
world where rapidly growing populations are putting greater demands
on our available arable lands and our environment, improved agricultural
technologies are critical for our future.
Changing technologies are nothing new to agriculture. Plows, selective
breeding, artificial insemination, vaccines, antibiotics, computers;
all of these technologies once were new and now seem normal.
Each new technology was introduced with its champions and its detractors.
Sometimes new ideas never take hold and sometimes old technology
is replaced. The market generally sorts out which technologies offer
a competitive advantage and which do not. No technology is appropriate
for every farm. The issue for any single farmer is whether to adopt
a new technology on his own farm.
Broadly speaking, people react to new technology in one of four
ways. As an example, think about the adoption of a widely used technology,
the tractor.
Innovators
These are the ones that actually develop the new technologies,
or at least who are first to use it under practical conditions.
They are the pioneers, and they take their lumps. Not only are they
the ones that gain the first benefit of the new technology, but
they also pay the price for working out the bugs and for trying
things that simply don't work. With tractors, these innovators were
the first to be able to plow vast acreages when compared with draft
animals, but they were also the ones to deal with breakdowns, fuel
costs, accidents, and in some cases imperfect engineering.
Early Adopters
These are the ones that reap the biggest benefit of the new technology.
They watch the innovators until most of the problems are worked
out, then take up the innovation and reap the gains in production
and efficiency. These people were driving tractors while most were
still using draft animals; planting and harvesting more acres more
efficiently and reaping the added margins of profit. After all,
they were producing their product in the new era, but still selling
their product in a market where price was set by those still farming
in the old era.
Mass Adopters
These take up the new technology as a necessity of doing business.
Their neighbors, the early adopters, are filling the market with
product they made more efficiently. As supply grows and the costs
of production drops, the market gradually pays less per unit of
product and all producers must adopt the technology to become more
efficient and survive. Make no mistake, this increases the stress
on producers. It is the nature of competitive free enterprise that
the consumer benefits (cheaper, better quality food) while the producer
must constantly improve to stay even. In most of todays agriculture,
tractors are a fact of life. They are now such a widely used technology
that they seem a normal cost of doing business.
Late (or Never) Adopters
These adopt a new technology late or never. Some farmers never
adopt a technology because it is inappropriate for their operation.
The Amish, for example, still compete within the context of their
chosen life style without tractors. Others refuse to make the change
or cannot do so. The latter ones compete in a larger market that
uses the technology and often do so at a serious disadvantage. Most
farms that did not switch from draft animals to tractors passed
out of business.
Requirements for the Profitable Adoption of Technology
Since no farm will adopt every new technology and no new technology
fits every farm, what should a dairy producer consider when deciding
what to do? Several items deserve attention:
- Efficacy: Does the technology really work under conditions
similar to what is faced on your farm? Ideally, this should include
both well-controlled research studies and the evaluation of the
idea under practical conditions.
- Management: Can you manage the new technology and the
farm so that you reap the benefits?
- Learning: What do you have to learn to take advantage
of the new technology? Every new technique requires new skills,
knowledge, and ways of thinking. Are you willing to do things
and think in a new way?
- Start up: What are the start-up costs? What do you have
to change in your current operation to get the benefit of the
technology?
- Phased start-up: Can you try the technology on a small
scale at first, testing its value on your farm, or do you need
to get in all the way at the beginning?
- Labor: What changes in labor will the new technology
require, including employee training?
- Capital: What capital must you invest to make the changes?
- Downside risk: If it doesnt work, how much sunk
cost are you risking?
- Feelings: What are your own psychological/ cultural feelings
and beliefs about the technology? Remember that sometimes the
roadblocks to adopting a profitable technology are not the practical
issues, but the emotional ones.
The Technology of rbST
POSILAC®, Monsantos recombinant bovine
somatotropin (rbST), is a new compound approved for use in lactating
dairy cows beginning at 57 - 70 days of lactation. It is to be administered
by subcutaneous injection once every 14 days. It has been shown
in repeated research trials and under practical conditions to increase
milk production in healthy, well-managed cows. Milk production responses
typically rise in the first few days following injection and then
gradually decline across the 14-day treatment period. When averaged
across the 14 days of the treatment period, the typical response
in well-managed herds appears to be an increase of 8 to 12 pounds
of milk per treated cow per day. Since its approval by the FDA more
than a year ago, POSILAC has been used throughout the United States
on all types of dairy farms in all regions, climates, and seasons.
The milk production response of a dairy cow to POSILAC depends
on several factors. The extra milk is not produced from nothing.
To respond, the cow must be in good health, cow comfort must be
adequate, and the cow must consume additional feed to provide the
nutrients needed for higher production. Typically, the cow will
compensate for higher production by increasing her dry matter intake.
In some herds, the composition of the ration may need to be enhanced
to support the higher production. Additional attention may be needed
to be sure that the cows have access to feed and time to consume
it. Heat stress can play an important role in determining the level
of response if dry matter intake falls off under hot or humid conditions.
Cows with individual health problems, particularly lameness, may
not respond well to the product. In addition to the nutritional
status of the herd, herds will respond best if they have good management
programs for mastitis and reproduction.
rbST Economics
In its simplest form, the profit from the use of rbST can be calculated
by subtracting the cost of the product and the cost of additional
feed from the value of the additional milk produced. For the typical
small, owner-operated farm in the upper Midwest, this may be the
only needed calculation. For some farms, particularly where extra
labor is hired or other labor outlets are available, the cost of
added labor for ordering, administering, and keeping records relating
to rbST may need to be considered. More subtle possible costs such
as effects on days open, culling, or somatic cell counts are far
less clearly defined and probably too small to be significant on
most farms.
When calculating the financial impact of rbST on a given dairy,
data specific to the dairy are necessary. For the purposes of example
in this paper, the following assumptions are made:
Milk price: the example models three prices: $10.50, $11.50, and
$12.50 per hundred pounds net to the farm.
Table 1
Profit and return on Investment for the use of rbST


Model Assumptions
Herd size, ration, and rbST costs:
100 cows in the herd
80% percent of eligible cows are treated with rbST
0.33 Meal energy per pound of milk
0.78 energy density of ration per pound DMI
$0.07 price of ration per pound of dry matter
$5.80 price per dose for rbST
Reproduction and overall rbST usage rate:
120 days open
70 days dry
63 days in milk at start of rbST
400 day calving interval
267 days of rbST use/lactation (assumes continuous use to the end
of lactation)
67% of the herd will be receiving rbST at any given time
Labor:
2.0 hours spent each two weeks for labor
$7.00 wage rate per hour
$365 cost for labor per year
Other:
$0.00 other rbST related costs/cow/year
$10.00 cost/cwt to produce milk in the herd, without the use of
rbST
18,000 lbs production/cow without rbST
Table 1 illustrates the profit and return on investment in rbST
for the example dairy herd. To be profitable (breakeven), the response
to rbST must be at least six pounds of milk, except at a milk price
of $12.50/cwt, where five pounds is sufficient to become profitable.
Once profitability is established (past breakeven), the profit and
return on investment mount swiftly. Figure 1 illustrates the profit
for the three milk prices and each level of response. Figure 2 illustrates
the return on investment. At typical response levels (10 pounds,
underlined in Table 1), annual profits range from more than $5,000
for the herd at $10.50/cwt up to more than $10,000 at $12.50/cwt.
Return on investment at a 10-pound response level ranges from 77
to 125 percent, certainly an excellent rate compared to the typical
overall rate of return for dairy farming (usually below 10 percent).
Because the return from the use of rbST is based on milk production
and on milk price, at any given response level the profit from rbST
will decrease as the milk price decreases (see Figure 1). This does
not mean, however, that as milk price drops the farm should stop
using rbST . If the production response is beyond breakeven, rbST
remains a valuable investment even if the magnitude of profit is
decreased. In situations where milk price is decreased, total farm
profit will decrease, with or without the use of rbST . As the milk
price drops, the profit derived from using rbST will account for
more and more of the total farm profits. As Table 2 and Figure 3
show, at low milk prices the profit derived from rbST may account
for as much as one half or more of total farm profit. In our example,
if milk price were $10.50 and the level of response were 10 pounds,
41 percent of total farm profits would be derived from rbST use.
Figure 1
Percent of farm profit due to POSILAC®
(given assumptions in model)
Figure 2
Return oninvestment in POSILAC®
(given assumptions in model)
Table 2
Contribution of rbST use to total farm profit

Figure 3
Profit from use of POSILAC®
(given assumptions in model)

rbST: How to Judge Its Use
Earlier in this paper, several criteria were discussed relating
to the adoption of a new technology. rbST is simply another new
technology like tractors, artificial insemination, or vaccines were
in their day. How does rbST measure up to the criteria?
1. Efficacy: Extensive controlled research and more than
a year of widespread field use have demonstrated that rbST works
as expected in well-managed herds. Herds that try the product and
do not see a response may want to explore whether some aspect of
management is limiting the response.
2. Management: To receive a response, management, cow comfort,
and nutrition must all be in place. This may require improvements
in some herds.
3. Learning: rbST is fairly simple to use, although it will
require some extra record keeping. As noted in #2, above, the greatest
learning challenge for most dairies will be learning to manage for
higher production.
4. Start-up: Start-up costs are small. In many herds, the
only initial investment is the cost of the product.
5. Phased Start-up: rbST can be used on a limited number
of candidate cows to see the effect in the herd. When trying such
an approach, the dairyman must be careful to select healthy cows
for the trial that are likely to respond.
6. Labor: For most upper Midwest farms, little additional
labor will be necessary.
7. Capital: No significant capital investments are necessary
to use rbST , unless investments are needed to improve facilities
of feeding to support a good response. If these sorts of investments
are needed, they are probably needed on the farm whether or not
rbST will be used.
8. Downside Risk: Using rbST has limited down-side risk.
Beyond the cost of the product for a few injection cycles, the farm
has little to lose if there is no response.
9. Feelings: For many, this is the major impediment to the
use of rbST . Personal feelings, concerns about community responses,
and misinformation have all contributed to an emotional environment
around the decision to use rbST . For many, the emotional considerations
have weighed more heavily than the economic or biological ones.
Summary
The adoption of rbST technology is fundamentally no different than
the adoption of any other new technology. There are several issues
to consider before initiating its use. Field experience has shown
the product to be very effective in well-managed, well-fed herds.
With typical levels of response, the return on investment will reach
or exceed 100 percent. As the milk price declines, the rbST use
may contribute a very large proportion of the farms total
profit. The benefits of rbST, as for any new technology, will go
to the early adopters who learn to use it effectively in their herds.
Presented at the St. Cloud Dairy Expo 95, St. Cloud, Minnesota
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