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How can the efficacy of fishery drugs be improved? These five methods must be mastered
Improve the binder The binder must be highly sticky, otherwise the drug is easily lost in the water. Standard wheat flour is a good binder material. For swallowing fish, it is best to make pelleted medicated bait or ball-shaped medicated bait for feeding. Add a feeding attractant Fish have a keen sense of smell; even if 1 gram of alanine is dissolved in 1 million liters of water, fish can still detect it. For example, if strongly aromatic Chinese herbal medicines such as star anise and Angelica dahurica are ground into fine powder as a feeding attractant, and mixed into fishery drugs at a ratio of 10%-20%, or added to roasted soybean powder, wheat flour, etc., all have obvious attractant
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Key Points on Selecting Improved Tea Varieties and Transplanting Techniques
1. Varieties suitable for making flat-shaped green tea: (1) Longjing 43: sprouts extremely early, strong cold resistance, high yield, but poor tolerance to high temperatures and prone to leaf blight. Best planted in mountainous and high-mountain tea gardens where flat-shaped tea is picked and processed. (2) Wuniu Early: sprouts extremely early, strong tenderness retention, medium sprouting density, excellent quality for making flat-shaped tea. (3) Pingyang Tezao: sprouts extremely early, vigorous growth, does not flower, produces flat-shaped tea with a green and lustrous color, strong aroma, and excellent quality. 2. Varieties suitable for making strip-shaped green tea: (1) Yingshuang: sprouts early, strong tenderness retention, long picking period, yellow-green buds
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Detailed Explanation of Key Implementation Points for Ecological Cultivation Technology of Improved Tea Varieties
1. Selecting the tea garden site. It is required to choose a location with good environmental conditions, surrounded by forest areas, with mountains and water, fresh air, clear spring water, deep or fertile soil, slightly acidic, suitable soil or earth for tea tree growth, preferably fragrant ash soil. To produce good tea, it should be a uniquely endowed region. 2. Land clearing and preparation. First, clear trees, shrubs and stones from the ground surface; second, remove tree roots, weed roots, bamboo rhizome roots, etc.; the reclamation depth should be over 50 cm, and perennial weed perennial roots and vine root systems must be thoroughly cleared,
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Key Technical Points and Detailed Methods for the Breeding of Improved Tea Varieties
There are many methods for breeding superior tea varieties, mainly including systematic selection, crossbreeding, artificial mutation breeding, and introduction and acclimatization. (1) Systematic selection: also called single-plant selection. That is, according to the breeding objective, superior single plants are selected from the selection materials, each single plant is separately propagated vegetatively, and compared and identified with the standard variety and the original population variety; the superior ones are cultivated into new varieties for propagation and promotion. Its steps: ① Primary selection: according to the breeding objective and the correlation between tea plant traits, select a number of superior single plants in the tea garden, mark and number them for observation;
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Garlic yields improve with frequent switching to good seed varieties, and Guosuan helps you achieve high yields
Garlic has a long history of cultivation in China and is one of the main vegetables and cooking seasonings. In recent years it has been exported in large quantities and has become one of China's major export vegetables. Among them, Shandong Province has the largest cultivation area and is one of China's key garlic production and export regions. However, as the cultivation area has continued to expand, the output value and economic benefits of growing garlic have become the issues of greatest concern to many farmer brothers, and selecting seed and switching to improved varieties is even more urgent. In 2006, the prices of garlic scapes and garlic bulbs rose across the board, and garlic farmers' income
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How to improve the quality of piglets? Practical breeding methods to share
Piglets have an imperfect digestive function, an underdeveloped enzyme system, and a lack of innate immunity, with poor digestion and disease resistance, making them susceptible to infections that affect their growth and development. Choosing good breeding sows: generally speaking, piglets with a high birth weight have strong resistance and grow quickly, and this trait is highly heritable. Therefore, when selecting sows to retain, litter selection must be carried out, choosing piglets from the litter that are well developed, have many and neatly arranged teats, and a good body type for breeding use. In addition, within the same breed, large individuals among sows can better
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Silkie chickens have poor vitality and disease resistance; how can their survival rate be improved?
Silkie chickens have poor vitality and disease resistance; how can their survival rate be improved?
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How to Improve the Utilization Rate of Winter-Idle Fish Fry Ponds
After the winter pond consolidation until the release of summer fry the following year, most fish fry ponds have an idle period of about half a year. If they are comprehensively utilized, the utilization rate and economic benefits of the fish fry ponds can be greatly improved. Four methods of utilizing winter-idle fish fry ponds are introduced below. Raising market-size fish: Using winter-idle fish fry ponds to raise one season of market-size fish can both increase output and help regulate the "summer shortage" aquatic product market. Because the rearing period is relatively short and the temperature is relatively low, the following techniques should be adopted: 1. Stock early, that is, stock immediately after the fish fry are consolidated into ponds, so as to make full use of the growing period. The stocking amount is calculated at a maximum water depth of about 2 m, generally 125 kg to 150 kg per mu. For the stocking ratio, generally silver carp account for about 40%, bighead carp about 10%, grass carp and bream about 30%, and black carp and common carp about 20%. Release @#@233@#@ large-size fingerlings, generally silver carp and bighead carp above 250 g, grass carp above 500 g, bream above 100 g, black carp above 1000 g, and common carp above 250 g. 2. Strengthen management. Fertilize promptly after the fish are stocked. Fertilization should mainly use organic fertilizer to ensure that the pond water has a certain fertility. In winter, choose clear and warm weather and feed once every 2 to 3 days, with the feeding amount at about 20% of the usual amount. In spring, as the water temperature rises, increase the feeding amount and maintain good water quality, so that the fish school maintains a relatively high growth rate and reaches the market size on schedule.
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What are the key measures to improve the hatching rate of turtle eggs?
1. Selection of parent turtles: Parent turtles should be selected from individuals aged over 5 years, robust, free of disease and injury, active in movement, and with strong limbs. 2. Male-to-female ratio: Generally, a female-to-male ratio of 2-3:1 is appropriate. If the proportion of male turtles is too low, it will be detrimental to normal fertilization of the females. 3. Egg collection time: Generally, collecting eggs within 10-30 hours after laying is appropriate; if conditions permit, collecting eggs within 3-5 days after laying is even better. Generally, eggs should be collected in the afternoon to avoid human interference with daytime egg-laying. Fertilized
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How Can the Disease Resistance of Fish Be Improved? 6 Effective Methods
Under current farming conditions, it is impossible to eliminate all pathogens. But to control the occurrence of fish diseases, we can start with scientific breeding management and maintaining the ecological balance of the aquaculture water body to improve the disease resistance of fish. As long as the measures are appropriate, we will achieve twice the result with half the effort. 1. Reasonable mixed culture. Reasonable mixed culture can not only increase the yield per unit area, but also has a certain effect on the prevention of fish diseases. Because the parasites suitable for different species of fish are not exactly the same, some parasites can only parasitize a certain species of fish,
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