(I) Immunity to young ducklings
1. Ducklings Viral Hepatitis Live vaccine immunization: The ducklings were immunized with the live vaccine about 3 days after hatching. Injected immunized subcutaneously.
Within 7 days of immunization, the animals must be kept in isolation.......
The name of the sunfish, Leponus macrohirusrafinesqus, also known as the blue-green scalefish, is native to North America and is a new breed of freshwater culture that has been introduced and cultivated successfully in recent years in China. It is a medium and small-sized fish with a suita.......
1 Must provide a well-balanced diet. In the case of corn as the main component, diets that do not contain animal protein (generally require 5% to 10%) should pay special attention to the balance of amino acids and try to avoid single feed composition. At the same time, we must ensure the c.......
Seeing the uniformity of the hybrid seeds mixed with other rice grains is not neat. For example, the mixed male parent or other japonica rice is significantly slimmer and fuller than the hybrid seed, and the japonica rice grain is round.
Look at the husk of the chaff-colored hybrid.......
When the temperature is appropriate, the ducklings consume less body heat, grow faster, and have a higher survival rate. The ambient temperature at 1 to 3 days of age should be 31 to 33°C, 4 to 6 days 28 to 36°C, 7 to 10 days 24 to 26°C, and 11 to 13 days 20 to 22°C. The temper.......
Scientific name Atractomorpha sinensis Boliva Orthoptera, Acridoidea. Alias ​​Chinese scorpion, pointed fried manganese, including the board. Distributed in Gansu, Qinghai, Anwei, Hebei, Shanxi, Inner Mongolia, Shaanxi, Shandong, Jiangsu, Zhejian.......
Scientific name Ilattia renalis Moore Lepidoptera, Noctuidae. Distributed in Henan, Yunnan, Japan, India and other places.
The host mainly harmed soybeans, followed by other beans.
Characteristics of the larvae damage the leaves, the young larv.......
Symptoms of the lower leaves more disease. First from the leaf margin or tip of the disease. The lesions invading from the tip of the leaf are wedge-shaped, oblong or irregular along the main vein; the lesions invading from the leaf margin are semi-circular or.......
There are many classification methods for agitators, mainly from the following.
1) According to the blade stirring structure, it is divided into flat leaf, inclined (folded) leaf, curved leaf and spiral surface agitator. Both the slurry and the turbine agitator have .......
The symptoms are also called sweet potato black spot. Growth period or storage period can occur, the main infringement of potato seedlings, potato blocks, does not harm the green parts. The white part of the stem base of infected potato seedlings produces a bl.......