North Dakota State University * Dickinson Research Extension Center
1133 State Avenue, Dickinson, ND 58601 Voice: (701) 483-2348 FAX: (701) 483-2005
HOG FEEDING TRIALS ON CONCRETE AND PASTURE-1965
This trial compares pigs raised in pens with concrete floors and pigs raised on spring seeded winter wheat Pasture. Pigs were allowed 16 square feet each on concrete and 1/10 acre each on pasture.
|Table 35. Results Concrete vs Pasture Trials - Spring 1965.|
|Lot #1||Lot #2||Lot #3||Lot #4||Lot #1||Lot #2|
|Standard||Standard||Standard||Standard||(Full Feed Pasture)|
|No. of Head||8||10||8||8||8||9|
|Average Initial Weight||67.9||41.4||43.3||43.3||68.3||40.4|
|Average Final Weight||240.9||203.1||179.1||183.4||235.8||195.6|
|Days on Feed||111||111||96||96||111||111|
|Cost/CWT Pounds Gain||$9.50||$8.37||$8.95||$8.64||$8.99||$7.62|
|Price/Pound||5% Soybean (Standard)||No Supplement|
|2.50¢||Trace Mineral Salt||3||$0.08||3||$0.08|
|23.0¢||Zinc + Vitamin||1||$0.23||---||$0.00|
Results of this year's trial are summarized in the following table.
|Table 36. Weight Gains and Costs of Gains of Pigs Raised on Concrete and Pigs Raised on Spring Pasture.|
|Pigs on:||Initial Weight||Final Weight||Gain||Days Fed||Average Daily Gain||Feed Per 100 Lbs. Gain||Cost Per 100 Lbs. Gain|
The pigs on concrete had a higher rate of gain and were fed for a shorter period of time. However, these pigs required 17 pounds more feed per 100 pounds gain at a cost of .33 more per 100 pounds gain than did the pigs on pasture. The pigs on concrete showed signs of stiffness and lameness especially as they reached market weights. They were somewhat softer in their finish than those raised on pasture. These conditions could result in a reduction in selling price under certain market conditions.
This trial shows that good pasture can account for a substantial saving in feed. This saving, plus the absence of lameness and a firmer finish favor the use of pasture where possible. These advantages may become even more important where rations are not adequately balanced for protein, vitamins and minerals, because pasture can supply many of these factors.