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PASTURE SELECTION

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Selecting the right pasture to grow is key for both grazing and silage production. Consider these factors before you venture into pasture production:

a)      Climate

Choose pasture species suited to local rainfall, temperature, and humidity.

b)      Soil Type

The soil should be fertile and well-drained for optimal growth.

c)       Species Selection

Grasses like alfalfa, clover, ryegrass, and bromegrass are common choices for silage. Legumes often add more protein to the feed.

1. Planting and Harvesting

Planting

Preparation

Prepare the soil by testing pH and adding appropriate fertilizers. Aim for a pH of 6.0–7.0 for most grasses.

Seeding

Plant seeds at the right depth and time of year. Cool-season grasses are planted in early spring or fall, while warm-season grasses are better planted in late spring.

Spacing

Proper seed spacing helps avoid overcrowding and ensures healthy plant growth.

2. Harvesting:

Timing: Harvesting for silage should occur at the right growth stage—usually before the plants fully mature. The optimal moisture content is around 60-70% for silage.

Cutting: Use sharp blades to minimize damage to plants. Cutting height depends on species, but typically, leave 3-5 cm of stubble to encourage regrowth.

Wilt: After cutting, wilt the grass for a few hours to reduce moisture content slightly.

3. Silage Making

Silage is made by fermenting freshly cut forage under anaerobic conditions.

Steps:

1. Cutting and Wilting: The grass should be cut when it's mature but still has high nutritional value. Wilt it to about 60-70% moisture content.

2. Chopping: Chop the forage to small pieces (2-3 cm) for easy packing.

3. Filling Silo: Fill the silo (trench, pit, tower, or plastic bag) as quickly as possible to prevent spoilage. Compact the forage to remove as much air as possible.

4. Sealing: Cover the silo with airtight material (plastic sheets). Weigh down the cover to prevent air from entering.

5. Fermentation: Allow the forage to ferment for 2-3 weeks. Good silage will smell sweet, indicating successful lactic acid fermentation.

Storage and Management

Silo Types: Silos can be vertical (tower), horizontal (trench or bunker), or plastic silage bags. The type depends on farm size and available resources.

Monitoring: Check regularly for leaks or air pockets to prevent spoilage. Silage should remain covered to maintain quality.

Feeding: Once opened, remove silage in thin layers to prevent exposure to air. Feed fresh silage daily, especially in warm climates.

Storage Life: Properly fermented silage can last for up to 12 months or more if stored well.

Management Tips:

Regularly monitor the silo to ensure it's airtight and free from pests.

Rotate feeding to minimize waste.

Store silage in a cool, dry place to maintain quality.

Proper pasture management and silage making ensure high-quality feed, improving livestock productivity throughout the year.

Grazing vs. Silage

Pastures dedicated to silage should be managed for maximum growth, while grazing pastures need regrowth ability after grazing.

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