Sturgeon breeding techniques
1. The conditions of the pond are as follows: ample water sources, fresh water without pollution, convenient irrigation and drainage ponds, with an area of ​​3 to 10 mu, and it is better not to select ageing ponds with thick silt. Each pond is equipped with an aerator of 1.5 kW to 3.0 kW. Lime drying and clear pond disinfection are used to kill the enemy pests and pathogens. Water injection is about 1.5 meters.
2. Fish breeding ponds The main breeding stock for catfish is 20 to 50 grams/tail fish species ranging from 3,000 to 4,500 fish per acre, and 200 ton/acre of white flowers (size 7 to 9 cm).
The stock of polyculture of pond polyculture stingray is generally 300 to 500 tails per acre (specification 4 cm to 5 cm). According to the stocking situation of other fish and the breeding technique level, the stocking amount can be appropriately increased.
3, feed production Because the diet of yellow catfish is omnivorous partial carnivorous fish, while feeding artificial compound feed at the same time, if there are conditions, it should also assist feeding fish, animal viscera and other animal feed to supplement the stingray The need for animal protein. The protein content of artificial compound feed should not be lower than 38% to 40%. Formula: fishmeal 4%, imported meat and bone meal 10%, blood meal 5%, soybean meal 20%, wheat bran 20%, premix 5%.
4. The daily management adheres to the three times of early, middle and late patrols, carefully observe the fish activities, feeding and growth, and find problems in a timely manner; often inject new water to prevent water quality from deterioration, and prevent the occurrence of floating fish and fish heads. It is best to inject fresh water 20 cm to 30 cm every 10 days and open the aerator in rainy days. Lime was applied once every two weeks or so, and the amount was 15 kg to 25 kg/mu.
5, fish disease prevention and treatment of yellow snapper disease resistance, disease, but poor feeding and management can also cause disease, resulting in loss. After the fry is put in the pond, fish ponds are sprayed and disinfected, and antibiotics and Chinese herbal medicines are regularly added to the processed feed for prevention of fish diseases.
Vitex /chaste tree is a native of China, it blooms
from late spring until early fall with long, upright spikes of pink, lilac and
white flowers. Its pleasant fragrant flowers and foliage attract butterflies
and bees, and it makes an excellent honey plant. Wildlife
shuns the seeds, and it`s just as well because you`ll have to remove the flower
spikes before they go to seed to keep the plant flowering. Chaste Tree
Cultivation Chaste trees need full sun and very well-drained soil. It`s best
not to plant them in soil that is rich in organic matter because organically
rich soils hold too much moisture close to the roots. Chaste trees do very well
in xeric gardens where water is scarce. Once established, you`ll probably never
have to water a chaste tree. Inorganic mulch, such as pebbles or stones, allows
the soil to dry between rains. Avoid using organic mulches such as bark,
shredded wood or straw. Fertilize the plant every year or two with general-purpose
fertilizer. Chaste trees freeze and die back to ground level during severe
weather. This isn`t a cause for concern because they regrow quickly from the
roots. Nurseries sometimes prune the plant into a small tree by removing some
of the main stems and all of the lower branches; but when it regrows, it will
be a multi-stemmed shrub. You`ll need to prune annually to control the shape
and size and encourage branching. In addition, you should remove the flower
spikes when the blossoms fade. Allowing the seeds that follow the flowers to
mature reduces the number of flower spikes late in the season.
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