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Why is the development of traditional advantageous industries struggling?
Zhejiang has always been known as the "Home of Silk," but today the traditional agricultural specialty industry of sericulture is beset with crises and declining steadily. A recent survey by the Zhejiang Provincial Department of Agriculture shows that since 2008, both the number of silkworm eggs reared and the silkworm cocoon output in Zhejiang have declined for six consecutive years.
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Soil Pollution Prevention and Control Urgently Needs a Legal Basis
Soil legislation that has long attracted outside attention has made new progress. Recently, the Department of Ecology of the Ministry of Environmental Protection held a symposium with soil remediation enterprises to solicit opinions for the drafting of the Soil Environmental Protection Law. A relevant official of the Department of Ecology of the Ministry of Environmental Protection said that the next step will be to strengthen soil legislation
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Prevention and Control Methods and Technical Key Points for Frost Damage in Apple Trees
Frost damage has always been a common factor causing damage to fruit trees, and this is especially true for apple trees. Moreover, since apple trees are perennial plants, once frost damage occurs, its effects are long-lasting. The series of rot diseases caused by frost damage also gives fruit growers quite a headache. Below
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How to Raise Meat Ducks by Dry Farming? A Detailed Explanation of the Technical Points
Dry farming of meat ducks has always been a difficult problem in meat duck breeding, so how should meat ducks be raised by dry farming? Below we introduce it. 1. Building the shed: Choose a site with good soil water permeability, facing the sun and sheltered from the wind, level the ground, and prevent water accumulation. 2. Selecting breeds: At present, the main breeds available for selection include Shanghai White
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What are the characteristics of the breeding habits of the stone frog?
The frog, also known as the field chicken, has always been called the guardian of crops. Frogs have always lived in rice paddies catching pests, but as the nutritional value of frogs and their benefits have become known to more and more people in recent years, wild frogs in rice paddies have become fewer ⟦4 <p>The frog, also known as the field chicken, has always been called the “guardian of crops”. Frogs have always lived in rice paddies catching pests, but as the nutritional value of frogs and their benefits have become known to more and more people in recent years, wild frogs in rice paddies have become fewer and fewer.</p><p></p><p><strong>A brief analysis of the breeding habits of the stone frog</strong></p><p>Spring and autumn are the seasons when the stone frog is most active, eats the most, and grows the fastest. May to September is the breeding season of the stone frog, and May to June is the peak spawning period. During the peak breeding period, the stone frog is highly active and exhibits behaviors such as calling and amplexus. The stone frog mates and lays eggs 3 times each year. A female frog lays 500-1000 eggs per year, depositing them at the streamside washed by flowing water or attaching them to stones in ditches or to aquatic plants. During mating, the male embraces the female and uses the spines on its abdomen to strengthen its grip. The egg diameter is 1.3-1.5 mm. The eggs have a gelatinous membrane outside; after being laid, they absorb water and swell, reaching 2-3 times the original egg diameter. Many eggs stick together, forming strands or clusters like bunches of grapes, with the long ones reaching about 20 cm, floating in the water or attached to objects in the water. Under natural conditions, frog eggs hatch into tadpoles after about 15 days. Tadpoles like to live in large stone crevices or gravel piles in stream pools. In a suitable environment, after 40-70 days of growth and development, they metamorphose into young frogs.</p><p></p><p><strong>Difficulties in frog farming </strong></p><p>1. How to solve the issue of breeding frogs and seedlings for frog farming </p><p>Answer: Because temperatures vary from place to place, the time when frogs emerge from their burrows also differs. Roughly starting in March, frogs begin to emerge, and at that time you can collect breeding frogs or frog eggs in the wild yourself; there is no need to buy so-called “breeding stock”. </p><p>2. The focus of frog farming </p><p>Answer: Troops and horses may not move, but food and forage go first. Having sufficient food is the prerequisite for frog growth, so the food factor is the most important, followed by routine disease prevention, predator prevention, and the hygiene of the growing environment. </p><p>3. Problems with frog farming reproduction and growth </p><p>Answer: Frogs generally lay about 1000-2500 eggs each time. From egg to tadpole takes about a one-week incubation period, from tadpole to young frog takes 2.5-3 months, and from young frog to marketable frog takes 4-5 months. The length of time depends on an individual's farming techniques, the farming temperature, and whether the nutritional content of the feed is high or low! </p><p>Based on summary and analysis, frog farming ponds should be small rather than large. Only when they are small are they convenient to manage, and only then is it easier to manage issues such as frog growth or disease prevention. Earthen ponds and cement ponds are both acceptable, with a water-to-land ratio of 3:1, or you can choose full-water-surface farming, with water depth between 5-30 cm! </p><p></p><p>4. Relevant certificates for frog farming </p><p>Answer: You need to apply for a domestication and breeding permit, a business utilization permit, a transport permit, etc. But we emphasize that frog farming is difficult, so do not blindly invest funds. If you truly want to farm them, you must go through a trial farming stage. The purpose is to let yourself accumulate experience and understand the process of frog farming, and only at the end should you consider whether or not to farm them yourself. Because it is a trial farming stage, with no selling or reselling, the relevant departments will not regulate it very strictly, so there is no need to apply for any certificates. Even if you apply for certificates, without techniques, the certificates are merely decorations. As long as you have mastered the techniques and have evidence to show the relevant departments, the government will certainly support this project. Overall, the most important thing in frog farming is technique, not certificates. Having certificates does not mean having technique! </p><p>5. Choosing food for frogs </p><p>Answer: In the farming industry today, animal feeds include maggots, earthworms, yellow mealworms, superworms, etc. Maggots are the most suitable for frog farming. Analysis shows that the growth cycles of earthworms and yellow mealworms are relatively long, ranging from 2-3 months, so from the perspective of time alone, it is unrealistic. Moreover, from the analysis of the site for earthworm farming and the cost of yellow mealworm farming, it is also unrealistic. In the farming industry, centering on saving costs, maggots are therefore the most suitable to be farmed as feed. </p><p></p><p><strong>Frog farming cycle </strong></p><p>When young, frogs can only live in water. After growing up, they can also live on land. Frogs use their lungs to breathe, but they can also absorb oxygen from the air through their moist skin. The various pigment cells in their skin also expand or contract with humidity and temperature, causing changes in the shade of their skin color. Frogs usually inhabit rice paddies, ponds, ditches, or grassy areas along riverbanks, and sometimes lurk in the water. They generally hunt at night. </p><p>It is reported that from egg to frog takes about more than one month, and they can reach adulthood in 2 months, which is related to environmental factors such as temperature. Frogs in nature generally live about 5 years, while farmed ones can live about 13 years. However, the lifespans of various frogs differ; generally speaking, the larger the body size, the longer the lifespan. Bullfrogs can live 16 years. </p><p></p><p><strong>The uses of frogs </strong></p><p>1. Nutritional components </p><p>Frog meat is tender, low in fat, and low in sugar, and is rich in protein, carbohydrates, calcium, phosphorus, iron, vitamin A, B-group vitamins, vitamin C, and various hormones. </p><p>2. Medicinal value </p><p>The frog is also a medicinal animal that combines food, health products, and medicine in one. As food, it is an excellent green food. In the Ming dynasty, Li Shizhen's “Compendium of Materia Medica” records: “Southerners eat it and call it field chicken, saying its meat tastes like chicken.” “Eating it is extremely delicious.” As medicine, it is a dietary therapy health product and medicine. According to “Northeast Animal Medicines”: “Frogs can be used fresh or dried in the shade, and the whole body can be used as medicine,” with the effects of “promoting diuresis and reducing swelling, detoxifying and relieving cough,” and can “treat edema, asthma and cough, measles, excessive menstruation, etc.” The adult frog's gallbladder, liver, brain, and skin can all be used as medicine. The larval tadpole has the effect of prolonging life.</p><p></p><p>Precisely because the market demand for frogs is relatively large, wild frogs are far from able to meet people's needs, so frog farming has been quite popular in recent years. However, when farming frogs, you must first fully understand the frogs' living habits, so as to improve the success rate of frog farming.</p>
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Can blueberries be grown in Guangdong? Growing conditions and variety selection
For a long time, everyone has believed that blueberries are suited to being grown in cold climates, but is that actually true? Can blueberries be grown in Guangdong? Let's take a look together! Blueberries can be grown in Guangdong, but the right blueberry varieties must be chosen. The blueberry varieties suitable for growing in Guangdong include southern highbush blueberries, rabbiteye, and others.
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What are the propagation methods for peach trees? A full breakdown of the common ways
Peach tree propagation methods have always been a key concern for many friends. Everyone usually knows about cuttings, so what other methods are there? Let's take a look! Peach tree propagation methods. Peach trees are mainly propagated by grafting. They can also be propagated by sowing, cuttings and layering.
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How to Grow Clivia? A Detailed Guide to Cultivation Techniques and Care Essentials
Clivia has always been a much-loved flowering plant, and many people grow a pot of it at home. So what are the cultivation techniques for Clivia? 1. Soil. Clivia does well in loose, fertile neutral or slightly acidic humus soil; the growing medium
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Can the lotus root you buy be grown into a lotus flower?
Lotus flowers have been loved by Chinese people from ancient times to now, and many families grow potted lotus at home. So can lotus root bought at the market grow into a lotus flower? 1. Can bought lotus root grow into a lotus flower? It is not that you can plant any section of lotus root casually bought at the vegetable market; we need to
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What are the new super high-yield wheat varieties?
The demand for wheat has always been very large. In order to increase its yield, experts at agricultural research institutes develop and trial-plant many super high-yield wheat varieties. Let us take a look at what new varieties there are. 1. New super high-yield wheat varieties. The new super high-yield wheat varieties include
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