People with duck experience said: “Spring ducks make money, and summer ducks still have this.†The problem with spring brooding is unstable temperatures, frequent cold waves, excessive rainfall, and difficulty in raising ducklings. Ducks are bred during the Ching Ming to Gu Yu. The du
Read moreMaize is the third largest food crop in our province, and its planting area exceeds 6 million mu. However, the proportion of its mechanized operations is much lower than that of rice and wheat. There are widespread problems in production such as mixed varieties, random sowing dates, and various se
Read moreWith the development of breeding technology, very early peach (such as April peach, May crisp peach) and extremely late peach (such as snow peach, peach, winter peach) have appeared one after another, which will extend the peach fruit market supply period, increase peach Agricultural economic bene
Read moreInto the world Throughout the ages, 800-dong Dongting Lake is the birthplace and main producing area of ​​Chinese sturgeon. Located on the west bank of Dongting Lake, Hanshou County is rich in Chinese sturgeons. In the 1950s, the annual export volume reached 60 tons. However, under
Read moreA polypeptide is a biologically active substance that is involved in various cellular functions in an organism. It is a kind of compound whose molecular structure is between amino acid and protein, and is composed of a plurality of amino acids combined by peptide bonds in a certain order. Up to now
Read moreDue to the low water temperature in winter, the activity of fish digestive enzymes is relatively weak, so the requirements for feed quality are relatively high. Generally, it is better to feed powdered peanut bran, bean cake or compound feed, and the protein requirement content reaches 28% to 30%.
Read moreGreen manure, directly applied to soil, ponds or green plants piled up as fertilizer. Green manure is a complete source of bio-fertilizer. The green manure is not only an effective method to increase the source of fertilizer, but also has a great effect on improving the soil. However, to make full
Read moreAfter continuous experimentation and debugging, our technicians carefully developed and produced four kinds of immunoassay kits of four kinds of metabolites of furan (furancillin, nitrofurantoin, furantone, furazolidone): tissue (chicken, duck / liver, fish, Shrimp) Honey and other pre-treatment fo
Read moreIn order to make up for the loss of body fluids in summer and autumn, more fluids should be added in winter. “Tea therapy†has always been valued by people. Radish tea White radish 100 grams, tea 5 grams, salt amount. Wash the sliced ​​white radish first, add a little s
Read morePhysiological changes: 1. After pregnancy, the color of the nipples and areola can be deepened from light red to dark brown from early pregnancy. This change is mainly due to the increase of estrogen and progesterone after pregnancy, which is a normal physiological change. . 2. Some women (mostl
Read moreHigh incidence of breast cancer According to relevant data, breast cancer has risen to the top of female tumors and has become the number one killer of women’s health. Most of the patients accidentally discovered a lump on one side of the breast when bathing, changing clothes, or touching
Read moreThe stem axis of the shutoff valve is perpendicular to the seat sealing surface. The valve stem has a relatively short opening or closing stroke and a very reliable shut-off action, making this valve ideal for use as a medium for cutting or regulating and throttling. Once the valve flap of the shut-
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