Functional Wild Vegetables - Yuzhu

Polygonatum odoratum (Mill.) Druce var. pluriflorum (Miq.) Ohwi, commonly known as Yuzhu, is a perennial herb belonging to the Liliaceae family. It typically grows to a height of 35–65 cm and features cylindrical, yellowish-white rhizomes that are fleshy and about 0.5–1.5 cm in diameter. Each year, a single stem emerges from the base of the underground rhizome. The rhizomes have distinct nodes, long internodes, and dense fibrous roots. The stems are simple, leaning, smooth, and ribbed. Leaves are alternate, short-petiolate or nearly sessile, leathery, and elliptic to ovate-oblong in shape, with a blunt or pointed tip and a wedge-shaped base. The upper surface is green, while the lower surface is grayish-white, sometimes with papillae along the veins. The flowers are axillary, with one or two per stem, featuring a greenish-white perianth tube with six lobes. There are six stamens with flat filaments and oblong yellow anthers, and the ovary is superior with three chambers and three stigma heads. The berries are spherical and turn purple-black when mature. Flowering occurs from June to July, and fruiting takes place from July to September. Yuzhu prefers cool, moist, and shaded environments, showing strong cold resistance and adaptability. It thrives in rocky crevices, mountainous areas, forest undergrowth, and deciduous forests. It grows best in deep, well-drained, fertile loamy soils—either yellow sand loam or red loam. It can be cultivated on hillsides, but soils that are too clayey or too loose are unsuitable. To maintain soil health, it’s recommended to avoid continuous cropping and instead rotate with crops like corn or peanuts. Cultivation begins with planting in late March or early October for autumn sowing. After harvesting, the rhizomes are stored at 0–5°C for 20–30 days to break dormancy. Before planting, they are dried to prevent rotting and promote shoot development. High-quality rhizomes—glossy, white, tender, and free from damage or disease—are selected for planting. Ridge systems are preferred, oriented north-south, with widths of 1.2–1.5 m and lengths of 2 m. Planting density varies based on fertility: 10,000 to 15,000 plants per 667 square meters. Field management includes shading during the seedling stage to protect against high light intensity and heat, which can hinder growth. Fertilization should be done according to plant needs, with basal fertilizer applied at planting and top-dressing during critical growth stages. Watering is essential, especially in sandy soils, with careful monitoring to avoid overwatering. Weeding is done using herbicides or manual methods to ensure proper growth. Pest control involves regular monitoring and timely application of fungicides or insecticides to manage diseases like leaf spot, purple spot, and brown spot, as well as pests such as cockroaches. Harvesting is done in spring before budding or in autumn after the foliage yellows. Rhizomes are washed, cleaned, and cooked or used in various dishes. Young shoots can also be consumed after blanching. While edible, the berries are toxic and not suitable for consumption. Yuzhu is rich in nutrients, including carotenoids, vitamin C, calcium, magnesium, and other minerals, offering health benefits such as boosting immunity, improving digestion, and promoting skin health. It is also valued for its medicinal properties, particularly in treating conditions like rheumatoid arthritis and heart disease.

Feed Additive

Feed additive refers to a small amount or trace substance added in the process of feed production, processing and use. It is used in feed in small amount but plays a significant role. Feed additive is an inevitable raw material in modern feed industry. It has obvious effects on strengthening the nutritional value of basic feed, improving animal production performance, ensuring animal health, saving feed cost and improving the quality of animal products.

Classification

1. Bile acid

It can promote fat digestion and absorption, protect liver and gallbladder, improve livestock and poultry health and improve feed utilization.

2. Acidifier

Including citric acid, fumaric acid, lactic acid, acetic acid, hydrochloric acid, phosphoric acid and compound acidifier. Adding an appropriate amount of acidification Qi to the pig diet can significantly improve the daily gain of pigs and reduce the feeding cost.

5. Promote growth

Including olaquindox, pig fast growth, fast fertility, blood polypeptide, liver residue, animal music, fat pig Wang, etc.

6. Trace elements

Including copper, iron, zinc, cobalt, manganese, iodine, selenium, calcium and phosphorus, which can regulate body metabolism, promote growth and development, enhance disease resistance and improve feed utilization. The daily gain of postnatal pigs can generally be increased by 10% - 20% and the feed cost can be reduced by 8% - 10%,

7. Vitamins

It includes vitamins A, D2, e, K3, B1, D3, B2, B6 and C, as well as a variety of vitamins, choline, pig premix additives, vitafat, Ted vita-80, French fat, health care element, strong element, etc. it can be scientifically selected and used according to different pig varieties and different growth and development stages.

8. Amino acids

It includes 18 kinds of amino acids such as lysine, methionine and glutamic acid, as well as Shengbao, livestock treasure, feed yeast, feather powder, earthworm powder, feeding music, etc. the most used additives are lysine and methionine. Adding 0.2% lysine to the diet can increase the daily gain of pigs by about 10%.

9. Antibiotics

Gold toxin, salinomycin, tetracycline, Bacillin, lincomycin, Kangtai feed additive, zhubao, Baosheng, etc.

10. Insect repellent health care

Including anbaoqiujing, keqiu powder, aibao-34, etc.

11. Mildew proof

Due to the high oil content of rice bran, fish meal and other refined feeds, they are easy to oxidize and deteriorate after long storage time. Adding ethoxyquinoline can prevent feed oxidation, and adding propionic acid and sodium propionate can prevent feed mildew. The addition of cinnamon powder not only has strong bactericidal effect, but also attracts food, flavors, and promotes growth.

12. Chinese herbal medicine

Including garlic, wormwood powder, pine needle powder, mirabilite, Codonopsis pilosula leaves, Maifan stone, wild hawthorn, orange peel powder, acanthopanax senticosus, Atractylodes, motherwort, etc,

13. Buffer feed

Including sodium bicarbonate, calcium carbonate, magnesium oxide, calcium phosphate, etc.

14. Seasonability

Including sodium glutamate, edible sodium chloride, citric acid, lactose, maltose, hay, etc.

15. Hormones

Including raw milk record, promoter, yufeiling, etc.

Vitamin A Powder, Lactose Powder, Oxytetracycline Dihydrate Powder, Vitamin D3 Powder

Xi'an Tian Guangyuan Biotech Co., Ltd. , https://www.tgybiotech.com