Rabbits are herbivorous animals and need to eat a certain amount of fibrous food. China has a vast territory and abundant forestry resources. A large number of leaves, twigs, and pomace can be used as a good feed and feed additive for rabbits. Paying attention to the development and utilization of forestry resources is of great significance for the development of the rabbit breeding industry in China. Any non-toxic leaves and twigs, as long as no odor, taste, rabbits do not refuse to eat can be used as feed, such as the hedgehog leaves, pine needles, poplar leaves, eucalyptus leaves, mulberry leaves, willow leaves and so on. The leaves contain various nutrients such as cellulose, sugar, fat, protein, amino acids, and vitamins, minerals, etc. According to the different growth stages of the rabbit, adding appropriate proportions in the diet can save the concentrate and improve the production performance of the rabbit. . The nutritional value of fresh leaves is higher, followed by deciduous leaves, and yellow leaves are inferior. Fresh leaves can be fed directly or after silage, so that rabbits can eat green feed year round. If deciduous and yellow leaves are fermented by microorganisms (micro-storage), their nutritional value can be improved. Hedgehog leaf also known as artichoke. Fresh Robinia pseudoacacia contains 28.8% of dry matter, 5.33 MJ/g of dry matter, 7.8% of crude protein, 4.2% of crude fiber, 0.29% of calcium, and 0.03% of phosphorus. It is rich in vitamins and trace elements, and its nutritional value is not inferior. For legumes. Hedgehog leaves are used fresh and can also be made into Locust leaf powder. The use of black locust leaves as feed has the following advantages: (1) High nutritional value. (2) Long use time. The Robinia pseudoacacia tree sprouts from April to December and leaves with wilting leaves in December, a full seven or eight months. (3) Contains an appropriate amount of crude fiber, which is very suitable for the physiological characteristics of the rabbit's digestive tract, can maintain the normal motility of the digestive tract, promote the digestion and absorption of nutrients, and can also prevent gastrointestinal diseases in rabbits. (4) Locust leaves are not in contact with the ground and are not easily contaminated by parasites or eggs. (5) It is effective in promoting the growth and development of young rabbits and improving the survival rate. The feeding of Robinia pseudoacacia leaf should pay attention to reasonable collocation, and should not be used alone for a long period of time. It needs to be used with fine material and other green feed. Pine needles are processed into pine needle powder for storage, transportation and use. If pine needle rosin phospholipids and tannins are removed during processing, the palatability is better. More than 200 pine needle powder factories have been established in the country. Pine needle powder is also easily processed by the soil method. The collected pine needles and twigs are washed, dried and crushed. Pine needles are pink and green, with a clear fragrance and rich in nutrients. Pine needle powder contains 7%-12% of protein, 18 kinds of amino acids such as lysine and aspartic acid, and the total amount of amino acids is 5.5%-8.1%; crude fat is 7%-12%, and crude fiber is 24%-26. %, nitrogen free extract about 37%. The trace elements iron, manganese, and drill contained in pine needle powder are higher than the dried stems and leaves of herbs and legumes. Pine needle powder also contains a variety of vitamins, of which vitamin C and carotene content is the most prominent. At the same time, pine needle powder also contains phytoalexins, with disease-resistant and disease-resistant effects. Adding pine needles powder to rabbits' rations can obviously promote the growth of rabbits, increase the hair yield of hairy rabbits, increase the number of litters of female rabbits and increase the survival rate of young rabbits. At the same time, pine needles and pine needle powder can also prevent rabbit diseases. Fresh pine needles were added with water and boiled for 1 hour. Rabbits were fed pine needles and fed once a day for 3 days to prevent and treat colds in rabbits.
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