Trace elements are elements that account for less than 0.01% of body weight in the body. They mainly include zinc (Zn), copper (Cu), iron (Fe), selenium (Se), manganese (Mm), and chromium. Zinc is an essential trace element in the animal body and is directly involved in nucleic acid, protein synt
Read moreIn the pond, rational polyculture of green prawns, river crabs, bonito and other species can make full use of the natural baits in the water body, improve the production efficiency of the water space, and play a mutually beneficial role among the cultured species to promote the growth of aquatic pr
Read moreCan the capping machine tighten the cap of the bee? This question will be answered in my article. To reduce packaging breakage and shipping weight, and to meet consumer safety needs, many large retailers today require beverage and food manufacturers to use plastic p
Read moreThe amount of fat fed to the appropriate dairy cow diet should not exceed 7% of dietary dry matter. Under normal circumstances, the basic dairy cow diet itself contains about 3% fat, therefore, the amount of supplement is generally 3% to 4%. If the amount of fat in the diet exceeds 7%, it will redu
Read moreGenerally, duck farmers are accustomed to rearing early spring ducks. In fact, raising autumn ducks can also achieve more significant economic benefits. Xu Lihan, a professional duck producer at Wangzhuang Village, Xinlin Township, Fanchang County, Anhui Province, has been using the local natural a
Read morePractice has proved that the key to nurturing strong seedlings is to do a good job of management in summer and autumn. First, the management of vines, wipe the sorghum, cuttings of young shoots of grape seedlings grow to 40-50 centimeters in mid-July, and some seedlings have several new shoots or s
Read moreIn the winter shears of fruit trees, there are differences in the pruning methods of flower bud branches and leaf bud branches. If the flower buds and leaf buds cannot be distinguished, it is possible to cut them by mistake, especially for trees that have
Read moreMulberry is popular among consumers because of its sweet and sour taste, unique flavor, and now it sells 4-6 yuan per kilogram of mulberry in the market, and the market prospects are promising. The thin wicker on the fine wicker willow grows every year. Because of its pure color, uniform and durabl
Read moreSummer temperatures are high, and aquaculture management should be strengthened. In hot summer, the sun is hot. July and August are the highest temperatures and temperatures in the whole year. They are also the growing season for aquatic animals such as farmed fish and shrimps, crabs and clams. At
Read moreThe hazards of nitrite, ammonia nitrogen, hydrogen sulfide, and high PH value in the culture water are the intermediate products in the conversion of ammonia to nitrate. Nitrite is highly toxic to fish and shrimp and is aquacultured. The important factors that induce fulminant disease in the waters
Read moreIn the field of research and development of nano-bio-pesticides in Sichuan, we saw a nano-bio-pesticides that were prepared through nano-chemical treatment of nicotine and had no toxic or side effects on humans and animals. The pesticidal effect of this pesticide is 3 times that of ordinary pestici
Read moreThe pollution-free breeding of meat rabbits is mainly reflected in the safety of the produced rabbit meat from being contaminated and becoming a green food. First, the choice of meat rabbit species. Rabbits in terms of breed are Eira rabbit, Breton rabbit, Zika rabbit, New Zealand rabbit, Californi
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