Prepare net cages before stocking: Culture cages are generally made of high-quality polyethylene mesh. It is generally 6 meters long, 2.5 meters wide and 1.3 meters high. Each cage is about 20 cubic meters. The cage size and mesh size depend on factors such as the size of the stocking seedling.......
Ayu is a kind of annual small-sized economic fish, which is a species of oystercatcher, aphanididae, and generally has an individual body weight of 100-150g and a maximum body weight of 300g or more. It is highly favored by consumers. At present, for the needs of the domestic and international.......
Scallions in the Yangtze River Valley are generally sown from March to April and harvested from June to July. They can also be planted from September to October and harvested from April to May in the second year. During this period, the market for young larvae, which has not grown up, will be .......
The project has been listed as a major science and technology project funded by 13.5 million yuan in the "transformation of cotton genes and the cultivation and industrialization of new varieties of high-quality stress-tolerant genes." After many years of research and development, im.......
It is known that fish ponds under artificial rearing have more or less wild fish. Their presence, to a certain extent, directly or indirectly affects the normal growth of the fish cultured, and brings about a certain degree of fishery production. Economic losses. Because they not only compete .......
In recent years, the demand for ornamental goldfish in international and domestic markets has become increasingly strong, and the development prospects are very broad. The key to improving the benefits of goldfish culture is to increase its fertility. Strengthening management from the followin.......
It is one of the famous “Taihu Lake Three Whitesâ€. With the reduction of wild resources and the expansion of market demand, the development of artificial breeding of bonito fish has very good economic benefits. I. Artificial propagation 1. Collection of parents: In the winter and s.......
During the use of diesel engines, oil leakage sometimes occurs. Its simple processing method is: Injector nozzle return oil nozzle is a precision component. If the diesel engine uses unclean diesel or the machine is used for a long time, it will return due to the wear of the nozzle. However, r.......
Rice fields cultivate eucalyptus and rice and rice are symbiotic. On the one hand, rice fields provide a good place for the growth of quail. The quail livelihood is wide, activities, food intake, and drying range are large. The growth and development are fast and the rate of weight gain is hig.......
In order to solve the problem of the difficulty of planting fruit trees in water-scarce mountainous areas, several new methods for saving the investment and the convenience of fruit trees in spring are introduced. The planting survival rate can reach more than 95%. "A bag of soil" pl.......
First, the increase of the amount of feed in the early stage of production of laying eggs should abide by the principle of gradual and orderly progress. Common mother ducks start egg production at 21-22 weeks of age. After the laying of eggs, each duck should increase feed by 5 to 10 grams per.......
I. Efficacy and distribution Peppermint is a kind of perennial herb that is aromatic and cool. Originating in China, Japan, and North Korea, it is cultivated throughout the country. China has a long history of cultivation. The early civil consumption of fresh mint as a vegetable can be used to.......