Sophora japonica and Robinia pseudoacacia leaves have high nitrogen content and can be used as protein feed for livestock and poultry. According to the analysis, 2 kg of green dry acacia leaves can be equivalent to 1 kg of soybean cake protein content. The acacia leaf powder contains crude protein 23.2%, crude fat 5.1%, no nitrogen leachate 39.3%. Phosphorus 0.31%, calcium 1.76%; acacia leaf powder containing crude protein 19.1%, crude fat 54%, nitrogen-free leachate 44.6%, calcium 2.4%, phosphorus 0.03%. In addition, the two leaves also contain a variety of vitamins, especially carotene and vb2 content; lysine content up to 0.96%. Collection of acacia leaves in general 7-8 months is appropriate, this time does not affect the growth of trees, but also to keep the leaves green. Nutritional richness. High quality, less crude fiber. Sophora leaves collected only the lower two-thirds of each branch, after harvesting to dry immediately, and timely processing of crushed storage. Crushed, pig feed bottom hole with 2 millimeters of baskets, chicken feed with a bottom hole of 1 millimeter of baskets. Sophora leaf powder feeding livestock and poultry, pig feed mixed with 8 to 15%, chicken feed mixed with 3 to 5%, can receive fast weight gain, high feed remuneration, good results in saving food.

Pine needle powder is the ideal natural livestock and poultry feed additives. According to analysis, each kg of pine needle leaves containing 0.3 feed units, 250 mg of carotene, 1200 mg of calcium, 320 mg of iron and copper, zinc, cobalt. Phosphorus, manganese, vc, ve, vk, va and some b vitamins. Pine needle leaves can either be chopped and fed directly to livestock or processed into leaf powder. Processing pine needle leaf powder, to collect tender green and fat pine needles, avoid sun exposure, chopped at 90 ℃ drying 20 minutes, and then crushed through the sieve can be. Tests have proved that pigs add pine needle powder in the diet 25 ~ 45%, 5% of egg-laying hens, dairy cows 10%, with obvious resistance to disease, promote growth, improve meat, egg and milk production, saving feed, improve egg yolk color and improve the effectiveness of the pig's lean meat rate and so on.

Apple leaves from a wide range of sources, high nutritional value. Apple leaves contain protein 9.8%, 7% fat, 8% crude fiber, calcium 0.29%. Phosphorus 0.13%. Crude ash 10%, nitrogen-free leachate 59.8%. Its branches contain nutrients close to the leaves. Orchards have several times a year in the pruning, cut off most of the branches for firewood, it is a pity. Rabbits love to eat apple branches and leaves, feeding should be cut into small pieces.

The powder made from dried paulownia leaves is a good feed for pigs. The paulownia leaf powder contains crude protein 19.32%, crude fiber 11.11%, crude fat 5.8%. Nitrogen-free leachate 5483%, phosphorus 0.21%, calcium 1.93%. After picking up the leaves of Paulownia, it should be cleaned, dried or sun-dried, crushed into powder can be used for feeding. According to the test, weighing 6 ~ 8 kg of milk piglets, each head of 30 grams of paulownia leaf powder per day, once fed, even fed for 60 days, than the control group each head of 24% more weight gain. 25 ~ 30 kg of shelf pig, every other day, each head of 60 grams of paulownia leaf powder once fed, even fed for a month, than the control group, an average of more than 14% more weight gain per head.

The Yellow River basin widely distributed dry willow, its leaves are also an excellent feed. According to analysis, dry willow leaves contain 11.1% crude protein. Crude fat 2.11%, crude fiber 11.96%, nitrogen-free leachate 54.13%. Calcium 0.57%. Phosphorus 0.08%. In addition, also contains a variety of amino acids. Nutritional composition of willow leaves and its main indicators are higher than the general forage, and crude fiber is lower than the general forage. It is reported that the dry willow leaves have no toxic reaction, good palatability, can be directly slurry fed to pigs, can also be crushed fermentation, or mixed with green fodder storage.