Wire Mesh Wound Polyethylene Pipe
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Method for making and storing hay in dairy cow feed
Hay is one of the essential feeds for dairy cows, playing a crucial role in their diet. Unlike straw, it cannot be easily replaced and is vital for maintaining the health, growth, and productivity of dairy cattle. High-quality hay not only supports the normal development of cows but also helps increase milk yield and improve milk quality.
**First, the Production of Hay**
1. **Raw Materials and Cutting Time**
Leguminous forages, such as alfalfa, are typically harvested during the bud to early flowering stage, when their nutritional value is at its peak. Grasses, on the other hand, are usually cut at the heading stage to ensure optimal digestibility and nutrient content.
2. **Methods of Making Hay**
(1) **Field Drying Method**
This method involves drying grass directly in the field, depending on local weather conditions. Options include flat drying, small pile drying, or a combination of both. The goal is to minimize handling and movement of the grass to reduce leaf loss and maintain quality.
(2) **Grass Frame Drying Method**
This technique is commonly used in wet regions or during rainy seasons. Grass is placed on frames in a conical or ridge shape, ensuring it remains fluffy and well-ventilated. The layer should not exceed 80 cm in thickness, with the outer surface kept flat and slightly sloped for better airflow.
(3) **Artificial Drying Method**
This method uses heat sources to control the drying process precisely. Common techniques include normal temperature air drying, where a hay shed and blower are used; low-temperature drying, which involves a drying room with preheating and blowing systems; and high-temperature rapid drying, where chopped grass is dried using specialized forage dryers.
**Second, the Storage of Hay**
Proper storage is just as important as production. For **indoor storage**, hay should be kept away from the roof to allow proper ventilation and heat dissipation. It's also important to avoid moisture buildup, which can lead to mold or spoilage.
For **open-air storage**, choose a high and dry location. The base should be elevated 30–50 cm above the ground to prevent water absorption. When stacking, try to compact the hay as much as possible and cover it to protect from rain and sunlight. This helps preserve the nutritional value and ensures the hay remains safe for feeding throughout the year.