Hankou, a 7-year-old boy, Xiao Rui, who is in second grade in elementary school, has a slim body and is not as tall in class. In the past two weeks, he always said that he had stomach ache. The parents asked him exactly where they hurt and couldn't say clearly. It was fine to see his …

Feeding and management of the first and second stages of laying The main point of feeding and management is to raise the peak of egg production as soon as possible. Therefore, it is necessary to gradually increase the level of dietary nutrition and increase the light time for feeding times. Th…

Cultivation methods At present, the culture method of shrimp mantis is different according to the aquaculture process, and can be divided into artificial whole-farming, rearing and rearing. Artificial breeding throughout the course is to raise 2 cm of artificial seed or 3 to 7 cm of natural se…

1. Occurrence Situation Occurrence of corn smut occurred in the northeast spring maize area in 2002, covering an area of ​​1.067 million hectares. Among them, the incidence of diseases in Heilongjiang Province is 440,000 hectares, accounting for 20% of the province's corn are…

The toxic substances in the human body mainly come from two sources: First, pollutants in the atmosphere and water sources, which invade the human body through breathing and eating, and lead, aluminum, and mercury are representative of the heavy metals; and the other is the metabolism of f…

Improving the wind resistance of arch sheds and preparing for wind protection in advance is the basis for reducing wind damage.
The first is to strengthen the columns, replace the old bamboo poles, and put on the shed film, which is the basis…

This regulation is based on the beet optimization combination scheme and combined with the experiment of Xinjiang sugar beet scientific research production, and it is applicable to Xinjiang Sugar Region. I. Indicators 667 square meters Baomiao 4800 to 5200 strains, the number of harvested plan…

Australian researchers found that if the salt content of food is too high, the possibility of suffering from cataract increases. Cataract refers to whitening of the lens, which can lead to blindness if left untreated.

Dr. Robert G. Camin of the University of Sydney and colleagues found that…

Mussels, commonly known as sea red, are the bulk of marine aquaculture products in Shandong Province. They are cooked and dried into mussels or canned with fresh meat. In recent years, the number of frozen oysters in mussels has become more and more popular in the market. There are mainly the …

To raise the breeding efficiency, it is recommended to actively adjust the structure of the species and raise the following types of aquatic products: To breed fish-eating species: In the same pond, properly carve some carnivorous fish, such as squid, blackfish (blackfish), California salmon a…