China has abundant green plant feed resources, including grasses, leaves, vegetables, and crop stalks, all of which hold significant potential for development and utilization. Feeding livestock and fish with green plant-based feeds offers numerous advantages such as low cost, high efficiency, minimal investment, quick results, wide availability, easy processing, good nutrition, and the absence of grain. This approach can generate substantial economic and social benefits. Below are some production and feeding methods of various green plant feeds:
1. **Basic Animal Feed**
This type of feed is primarily made from corn straw, rice straw, peanut vines, and sweet potato vines. It can be produced by simply harvesting, cleaning, drying, and crushing these materials. It serves as a fundamental component for herbivorous animals and is commonly used to feed cattle, beef cattle, and herbivorous fish. It can be added at 40% to 60% of the total feed or even used entirely. For example, adding about 40% corn straw powder to fish feed can cut feed costs in half.
2. **Feed Additives**
Fresh corn stalks, ryegrass, alfalfa, peanut leaves, sweet potato leaves, and tung leaves are the main ingredients. These materials should be dried promptly and then crushed for use. As they are processed while still fresh, they serve as pollution-free additives. They can replace part of the traditional feed additives and promote better growth in livestock and poultry. When used at a rate of 50% of the total feed, this green feed is less than half the price of corn, and it contains 1–3 times more amino acids, vitamins, and crude protein. On average, it reduces feeding costs by 30%.
In addition to these, other green feed options like silage, leaf meal, and aquatic plants are also widely used depending on local availability and animal needs. By making better use of these natural resources, farmers can not only reduce expenses but also contribute to sustainable agriculture and environmental protection. With proper management and innovation, green plant feed can become a key component of modern farming systems.
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