Is green corn stalk poisonous to feed cattle?

Every autumn harvest season, a large number of agricultural products will have some residue after harvest. For example, after corn harvest, corn stalks will stay, many people feel lost pity, will choose to feed cattle with green corn stalks. Is it poisonous to feed cattle with green corn stalks? Farmers who don't know may wish to take a look together.

1. Is green corn straw poisonous to feed cattle

Small amounts of green corn stover fed to cattle are not toxic, but if fed more than 30% of the total amount can cause poisoning. Light diarrhea, severe dehydration, walking weakness, hematochezia, and even death. Therefore, it is best to feed with other feeds, or feed after fermentation and silage, so as to effectively avoid poisoning and enhance its palatability.

II. Corn stalk feed processing

1. Silage

belongs to biological treatment technology and is a main way of utilizing corn straw feed in Shandong Province. The technology comprises the following steps of: cutting and collecting straws of corn in a wax-ripening period at one time by a silage harvesting machine or manually harvesting the straws, and crushing the green corn straws to be 1 cm to 2 cm long to ensure that the water content of the green corn straws is 67 percent to 75 percent. Packed in cellars, vats, towers, pools and plastic bags packed sealed storage, artificially created an anaerobic environment. Natural use of lactic acid bacteria anaerobic fermentation, production of lactic acid, so that most of the microorganisms stop reproduction, and lactic acid bacteria due to the continuous accumulation of lactic acid, and finally by their own lactic acid control and stop growing, in order to maintain the nutrition of green straw, and make silage with a slight fruity taste, livestock love to eat.

2. Microstorage

This is also a biological treatment method, the corn straw cut short, the length of cattle 5 cm ~8 cm, sheep 3 cm ~5 cm is appropriate, and pigs need to be crushed, so that it is easy to compact and improve the utilization rate of micro-storage cellars and ensure the quality of storage materials. Container can choose similar silage or ammoniated cement cellar or earth cellar, the bottom and the surrounding spread a layer of plastic film, small batch production can be used for tanks or plastic bags, barrels and so on. The moisture content of straw is controlled at 60%~70%, and microbial active bacteria are added into straw, so that corn straw becomes feed with acid, fragrance and wine taste after fermentation. Microstorage is a method that cellulose and hemicellulose in corn straw are degraded and transformed into bacterial protein by microorganism, which is also the trend of crude fiber utilization in the future.

3. Yellow storage

This is the method of using microorganism to treat corn stalk. The corn stalk will be chopped to 2 cm ~4 cm, put into the tank, add appropriate warm water stew for 2 days can be. Dry straw livestock do not like to eat, the utilization rate is not high, after yellow storage, sour, sweet, crisp, soft, livestock love to eat, the utilization rate can be increased to 80%~95%.

4. Block pressing

The straw is pressed into high density cake by feed briquetting machine, and the compression can reach 1∶15~1∶5, which can greatly reduce the transportation and storage space. If it is used together with drying equipment, it can suppress fresh corn stalks, ensure that their nutritional components remain unchanged, and prevent mildew. After adding conversion agent, the straw is compressed again, and the temperature and pressure generated during compression are utilized to ammoniate, alkalize and ripen the straw, so as to improve the crude protein content and digestibility. The corn stalk processed becomes block feed with the section of 30mm * 30mm and the length of 20mm-100mm, and the density reaches 0.6t-0.8t per cubic decimeter, which is convenient for transportation and storage, suitable for a company plus farmer mode, and low in production cost.

5. Grass powder

Corn straw is crushed into grass powder, which is fed to cattle and sheep after fermentation. It can be used as feed instead of green hay to adjust the surplus and deficiency of light season and peak season, and the feeding effect is better. All corn stalks that are not moldy and have a moisture content of not more than 15% can be used as crushed raw materials. When making them, the straw should be crushed with a hammer mill. The grass powder should not be too fine, generally 10 mm ~20 mm long and 1 mm ~3 mm wide. It is not easy to ruminate if it is too fine. mixing crushed corn straw powder and leguminous grass powder according to the ratio of 3:1, fermenting for 1 - 1.5 days, adding 0.5 - 1kg bone powder into every 100 liters of fermented grass powder, mixing with 25 - 30kg corn flour, wheat bran, etc., and fully mixing to prepare the mixed grass powder fermented feed.

The above is the soil flow net finishing green corn straw feeding cattle poisonous related content, I hope to help you.