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How many years does a sturgeon generally need to be farmed before it can spawn?
Summary According to relevant research, female fish are around 16-29 years old when they spawn, and their body weight generally reaches around 170-300 kg, while male fish reach sexual maturity at around 9-22 years old, with a body weight of around 40-125 kg. The fish school stops feeding during the spawning period, and the optimal hatching water temperature for the eggs is around 20°C.
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Is the mandarin fish easy to raise in winter? Reduce stocking density and build a wintering pond before overwintering
Abstract The mandarin fish is not very easy to raise in winter, because the optimal water temperature for mandarin fish growth is around 20°C, and the lower winter temperatures affect its growth. Therefore, a wintering pond needs to be built, and pond consolidation should be carried out on sunny days when the water temperature is above 10°C. Before overwintering, stocking should be sparse and the water deep, reducing stocking density.
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What is the yield of black carp per mu? Increasing yield depends on stocking density and scientific management
Abstract: In general, the average yield of farmed black carp is about 2000 jin per mu. If black carp are farmed at high density and large size, the yield per mu can reach about 4000 jin. The specific yield depends on the size of the fry, the density and the farming conditions. If you want to increase the yield, you need to
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The most important thing in river shrimp farming is water quality; timely aeration and active disinfection are needed
Abstract Choose a place with abundant and clear water sources to build a pond, with an area of 3 mu as suitable, water depth controlled at about 1.2-1.5m, plant an appropriate amount of aquatic plants around the pond to provide shade and habitat for river shrimp, install anti-escape facilities at the pond's inlet and outlet, and carry out disinfection and fertilization work on the pond before releasing the seedlings
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Reasons for failure in yellow eel farming for beginners: the following 7 points need attention
Abstract Poor quality of fry and fingerlings: it is advisable to choose high-quality fry and fingerlings such as deep yellow large-spot and earthy red large-spot. Pond water too deep: the water depth should be about 5-20cm. Mixed culture of large and small: the food will all be eaten by the large eels, and when hungry the large eels will swallow the young eels. Frequent feed changes: yellow eels will find it difficult to adapt
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Pig Farming Basics: Scientific Feeding Points for the Three Growth Stages
Abstract The pig rearing process mainly consists of three stages. Suckling stage: after piglets are born they must receive good colostrum and be kept warm, and red, yellow and white scours disease prevention must be carried out. Nursery stage: weaned piglets should be reasonably grouped and managed, and their diet changes from liquid breast milk
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What should be done if a cow retains the placenta after calving? Medication should be chosen according to the specific situation
Abstract There are many treatment methods for postpartum placental retention in cows. Common ones include intrauterine infusion with hydrogen peroxide or 5%-10% hypertonic saline, and subcutaneous or intramuscular injection of oxytocin, estradiol benzoate, etc. The main causes of postpartum placental retention in cows include placental infection and inflammation,
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Detailed Explanation of High-Density Culture Techniques for Chinese False Gudgeon
Abstract: Select high-quality, disease-free Chinese false gudgeon (Pseudorasbora parva) varieties for culture. Before stocking, spray quicklime into the pond for disinfection. The number of fry stocked is about 80,000-100,000. During the culture process, oil bran or homemade formula feed can be given, generally fed 2 times a day.
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What conditions are required for puffer fish farming?
Summary Pond: A pond with sufficient water source, no water pollution and little variation in water temperature should be chosen for raising puffer fish. Stocking of fingerlings: Choose puffer fish fingerlings that are robust, free of disease and similar in size; the fingerlings must be disinfected before stocking. Domestication and feeding:
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How to keep Taiwan butterfly koi? Detailed guide to breeding methods
Summary Choose an aquarium: you need to pick an aquarium of suitable size; if it is too small, water quality cannot be guaranteed, and if it is too large, it will require very large water changes. Adjust water quality: add a small amount of nitrifying bacteria to adjust the water quality, then 3 days later introduce the Taiwan butterfly koi. Feed in moderation
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