Key measures for breeding broodstock in autumn and winter

Autumn and winter season is in the early stage of gonad development. The quality of broodstock cultivation in this stage is directly related to the amount of broodstock in the next year. It also determines the success or failure of artificial breeding of broodstock in the spring of the following year. Therefore, it is very important to strengthen broodstock cultivation in autumn and winter. The key technologies are:
1. Look at the water and fertilize the maggots. The squid feed on plankton. Through fertilization, it promotes the reproduction of plankton to meet the gonad development needs of the broodstock. The food is sufficient, and the gonads are well developed. Therefore, looking at the water and fertilizing is the key to maintaining a good and beautiful color. In particular, it is necessary to intensify fertilization before winter (generally about 500 KG per 667 M2 of fertilization) to make the water thicker. If the water quality before the winter is not fat, as soon as winter is entered, the cold and cold currents will make the water color suddenly fade, so that the purposes of raising water and raising fish and squid can not be achieved. At the same time, a small amount of fertilizer should be added after entering the winter, and the principle of “a small number of repeated supplements” should be followed during fertilization. Fertilizer must be applied to rot, not to apply fertilizer, and it is best to compost. It is worth noting that in the fall of thunderstorms and stifling hot weather, we must strictly control the amount of fertilization, do not apply as much as possible, so as not to cause broodstock pan pool. In short, in autumn and winter, it is necessary to proactively store enough nutrition for him to ensure the normal development of the brood broodstock at the beginning of spring. For broodstock and bream, broodstock cultivation mainly focuses on regular fertilization in autumn and winter and organic fertilizer in winter. For mandarin fish-based broodstock ponds, about 70% of manure should be applied, and livestock manure should account for about 30%; carp ponds should be treated with cow dung. Mainly accounted for about 70%, and manure accounted for 30%.
2. Reasonable feeding Because of the different feeding habits of grasses and herring and squid and squid, their breeding methods are also different. Reasonable feeding is the key to cultivating the grass carp. In autumn and winter, due to the decrease of water temperature, the ingestion intensity of grass carp gradually decreases, and the source of green material is also relatively insufficient. This time should be focused on the feeding of bean cake, wheat bran, corn and other concentrates to strengthen cultivation. In order to promote broodstock feeding and digestion, fine and green materials should be fed separately. Normally, green feed should be fed in the morning, accounting for 30% to 50% of the body weight of the broodstock, and concentrates in the afternoon, accounting for 2%-3% of the body weight of the broodstock. After entering the winter, the amount of concentrate feed decreased. Normally, it is fed every other day when the water temperature is high, and once every 3 days when the water temperature is low. Herring is mainly fed with snails, clams, and meat, supplemented with a small amount of soybean cake and other concentrates, but it should be eaten as a measure.
3. Filling fresh water with timely water injection to keep the water in the pool fresh is one of the technical measures to promote gonad development in broodstock. At the same time, deepening of the water level in autumn and winter has the effect of maintaining the water temperature. Generally, new water should be added in accordance with the season, temperature, water quality, thin and broodstock feeding conditions. In the fall and winter season, it is usually flushed once every 15-20 days. Each time the water is flushed for 3 to 5 hours, the water level rises by about 20cm. However, it should be noted that there should be less flushing of the broodstock and broodstock ponds.
4. Prompt prevention and treatment of fish diseases should follow the principle of “no disease prevention, early disease prevention”. Generally, the food field should be disinfected every 15 or so times. If bleaching powder is used for disinfection, the dosage should be 0.5 to 0. .75KG. At the same time, food baits and residues should be regularly removed. Strengthen the patrol pond and find a timely diagnosis and treatment of fish diseases.

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SO2

Pesticide

Low pesticide / EU standards

<15ppm

Meet EU pesticide standards

Goji berry is listed in the Pharmacopeia of the People's Republic of China (2000), and use of the berries dates back 2,300 years. Traditional use has included preventing conditions such as diabetes, hyperlipidemia, cancer, hepatitis, immune disorders, thrombosis, and male infertility.  In traditional Chinese medicine it is used for its anti-aging properties and tranquilizing and thirst quenching effects, as well as its ability to increase stamina. Goji is a core ingredient in most herbal eye remedies. Further uses have included nourishing the blood, enriching the yin, and as a tonic for the liver, kidneys, and lungs.


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