Background

Lack of pasture and hay production in many parts of Ontario this summer has resulted in tight hay supplies for winter. However, there are other options for feeding cattle. This article examines some of the possibilities by comparing the value of alternative feeds with hay priced at various levels. Producers can use this information to help make informed decisions regarding whether to buy hay or some combination of alternative feeds. Each proposed ration must be balanced for nutrient content (fibre,energy, protein, minerals, vitamins) to ensure it meets the needs of the cattle it is intended for.

For long term health, cattle should consume at least 0.5 % of their body weight per day as forage (dry matter basis). For example, a 1400 lb cow needs a minimum of 7.7 lbs of hay or 22 lbs of corn silage (as fed basis), along with the concentrate feeds required in their diet.

Table 1 compares alternative fibre sources for feeding value and economic value compared with hay priced at $175/tonne, based on their energy and protein content [Petersen's Equation].

Alternative Fibre Feeds

Table 1. Alternative Fibre Feeds Compared with Hay for Beef Cattle
(hay valued at $175/tonne [as fed] = 8 cents/lb = $64 for a 4x5 round bale*)
FeedReplacement Rate Relative to Hay
(lbs of feed to replace 1lb of hay [as fed])
Breakeven Price o
($ per tonne as fed)
Maximum Feeding Rate
(% of total diet)**
Storage OptionsFeeding Options y
Hay
1.0
$175
100%
 
 
Corn silage t,x
2.38
$74
60%
pile, silo, bunker, bag
feed bunk
Baled corn stover t
1.43
$122
40%
Bales
bale feeder
Wheat straw
1.56
$112
60%
Bales
bale feeder
Soybean straw
1.59
$110
60%
Bales
bale feeder
Soybean hulls
0.78
$224
50%
flat or bin (covered)
feed bunk

* 800 lbs as fed wt.
**dry matter basis
oYou could pay up to this amount per tonne and it would be a better value than hay @ $175/tonne
tPossible toxicity due to nitrate accumulation
xfor efficient transportation of this wet crop, maximum recommended haul time from field to storage is 30 minutes
yGround feeding may result in up to 30% loss.

Table 2 gives the breakeven prices for alternative fibre sources compared to buying hay at prices ranging from $25/tonne to $350/tonne, which is equivalent to [1.1 cents/lb to 15.9 cents/lb], and [$9/bale to $127/bale] (800 lb bale).

Table 2. Breakeven Price of Alternative Fibrous Feeds for Beef Cattle, Relative to Hay at Varying Prices*($/tonne, as fed basis)
Alternative Feed
Price of Hay ($/tonne, as fed basis)
 350325300275250225200175150125100755025
Corn silage†147137126116105958474635342322111
Baled Corn stover2452272101921751571401221058770523517
Wheat straw224208192176160144128112968064483216
Soybean straw220204189173157142126110947963473116
Soybean hulls449417385353321288256224192160128966432

*Example: if hay cost $325/tonne, you could afford to pay up to $227 for baled corn stover and it would be a cheaper feed source than the hay.

Corn Stover Grazing

Grazing the corn stover left in the field after grain harvesting may be an option. This would require buying and installing temporary electric fencing, providing a water source and trucking cattle to and from the field. Strip grazing is the most effective way to utilize the stover. Table 3 estimates the value of corn stover as a feed source on a per acre basis, assuming it costs $50 an acre to set up and manage the field. Assuming that the grain harvest produced 120 bu/acre, strip grazing the stover should provide 60 cow days of grazing per acre. Depending on the size of the cobs and harvest conditions, there may be a significant amount of grain left in the field. In order to minimize the risk of bloat, make sure cows are full of feed before first turn out onto the corn stover field, provide some familiar dry hay for the first couple of days, and keep a close eye on them.

Table 3. Value of Corn Stover ($/acre) for Grazing Beef Cattle Relative to Buying Hay at Various Prices*#
Stover Value ($/acre)
Price of Hay, $/tonne (as fed basis)
350
325
300
275
250
225
200
175
150
125
100
75
50
25
135
122
109
96
82
69
56
43
29
16
3
-10
-24
-37

*Assumptions: 120 bu/acre grain yield, 6700lbsstover residue in field (80% dm), cows utilize 25% of residue [1670 lbs/acre].

#Corn stover value has been adjusted to reflect a $50/acre charge for fencing, water provision and management time. Does not include cost to transport cattle to and from field. Does not include charge for protein supplement which may be needed as season progresses.

One acre of stover would provide feed for 1 cow for 2 months, or 60 cow days per acre.

Energy and Protein Concentrate Feeds

Although beef cows are not usually fed much in the way of concentrates, they may be required when low quality roughages such as straw make up a large component of the diet. Table 4 gives the replacement rates for some concentrate feeds, relative to the energy and protein contained in average quality hay. It also estimates the breakeven price for these alternative feeds compared with hay valued at $175/tonne.

Table 4. Alternative Concentrate Feeds for Beef Cattle, Compared with Hay Valued at /tonne
($175/tonne [as fed] = 8 cents/lb = $60 for a 4X5 round bale*)
FeedReplacement Rate Relative to Hay (lbs of feed to replace 1 lb of hay [as fed])

Breakeven Price*

($/tonne as fed)

Max Feeding Rate

(% of total diet)**

Storage Options
Wheat shorts
0.75
$306
25%
flat or bin (covered)
Corn gluten feed (dry)
0.62
$310
50%
flat or bin (covered)
Distillers dried grains with solubles
0.50
$414
30%
flat (covered)
Brewers grains (wet)
2.44
$73
40%
pile, bunker, bag
Oats
0.81
$219
60%
flat or bin (covered)
Barley
0.76
$241
30%
flat or bin (covered)
Shelled Corn
0.81
$216
40%
flat or bin (covered)
Soymeal 48%
0.40
$438
15%
flat or bin (covered)
Wheat
0.73
$240
30%
flat or bin (covered)

Note: A feed bunk is required for concentrate feeds. Ground feeding may result in up to 30% loss.

*You could pay up to this amount per tonne and it would be a better value than buying hay @ $175/tonne
**dry matter basis

Table 5 gives the breakeven prices for concentrate feeds compared with buying hay at prices ranging from $25/tonne to $350/tonne, which is equivalent to [1.1 cents/lb to 15.9 cents/lb], and [$9/bale to $127/bale] (800 lb bale).

Table 5. Breakeven Price of Concentrate Feeds for Beef Cattle, Relative to Buying Hay at Various Prices *
Alternative Feed
Price of Hay, $/tonne (as fed)
350325300275250225200175150125100755025
Wheat shorts4674334003673333002672332001671331006733
Corn gluten feed (dry)5654244844444033633232822422021611218140
Distillers dried grains & solubles70065060055050045040035030025020015010050
Brewers grains (wet)143133123113102928272615141312010
Oats432401370340309278247216185154123936231
Barley461428395362329296263230197164132996633
Wheat4794454113773423082742402051711371036834

*see Table 4 for feeding limits for each feed.

These various alternative feeds can be used to stretch hay supplies or provide novel rations for beef cows. Producers should work with a feeds specialist prior to making dramatic ration changes. Any new feeds need to be introduced slowly to avoid digestive upset. It may take up to 2 weeks to complete the change if the 2 diets are very different.


For more information:
Toll Free: 1-877-424-1300
E-mail: ag.info.omafra@ontario.ca