What are the common symptoms of large-scale goose breeders? Goose is a treasure with high comprehensive utilization value, simple feeding, high input-output ratio, low feeding risk and better economic benefits than chickens and ducks. This is a good way to get rich. Raising geese means exchanging grass for meat, and geese eat a hundred herbs, which can make use of a lot of green feed and some coarse grains. This is determined by the physiological characteristics of geese. The muscle and stomach pressure of geese is more than half that of ducks and 1 times that of chickens. Relying on this intense exercise and the grinding of sand and gravel, the cecum of geese contains more microorganisms, which can ferment and decompose cellulose into low-grade fatty acids, making cellulose easy to dissolve and absorb. The absorption rate of protein in grass by geese was 76%. Goose feed has wide sources, low price and low cost. Goose has good adaptability, strong disease resistance, low requirements for environmental conditions in the shed, and no need for a good shed. Except for the gosling house, the temperature in the house can be kept above 0℃ in winter. Goose has few diseases and is an infectious disease that threatens poultry. According to the type of natural infection rate, geese are less than chickens 1/3. Goose production cycle is short and quick. Generally, it takes a production cycle from birth to slaughter and listing. Among herbivorous livestock and poultry, cows average 18 months, mutton sheep 5-6 months, meat rabbits 3-3.5 months, and the shortest production cycle of geese is 2-3 months. At present, the production cycle of most goose breeds in China is 70-80 days. Geese live in groups and are easy to manage. Goose is gentle, does not run around and jump around, is convenient for grazing and yard management, does not necessarily occupy strong labor, and can be raised by women, children and the elderly.

Variety is the internal factor that determines benefit. Plant good seedlings, good seedlings bear good fruits, and good fruits have good benefits. As for the varieties of geese, it can be said that China is rich in goose resources, only 12 is listed in the national poultry variety catalogue, and there are some varieties. For example, Guangdong Province is used to raising local grey geese, such as Lion Head Goose, Wuzong Goose and Magang Goose, which have good meat quality. Anhui likes to raise geese and white geese in western Anhui. Although there are 30-40 fewer eggs, there are 3-4 laying periods for geese, and they can lay eggs and hatch in all seasons to produce meat geese. Jiangsu Province is used to raising Taihu geese, laying more eggs (more than 60), and likes goslings to be listed around 2 ",with tender meat. Northeast China likes to raise gouge-eyed geese and breeding geese, laying more than 100 eggs every year. The advantage of raising Dong Zhe White Goose in Zhejiang is that it can lay eggs and hatch meat geese in all seasons, and its weight at 60 days can reach 3.5㎏. Although Xupu geese are raised in Hunan Province, the annual egg production is about 30, but the meat yield is 87.3%-88.6%, the weight of 60-day-old geese is over 3㎏, and the fatty liver effect can reach 600 grams. Sichuan province likes to raise Sichuan white geese, and the efficiency of laying eggs, producing meat and producing wool is balanced. It is the first choice for general scale farming, laying 60-80 eggs a year. Due to the poor climatic conditions in Xinjiang, they raise Ili geese extensively. Most of them fly away during the day and come back for food at night. It is the only goose species in China that evolved from grey goose. If the feeding environment conditions are changed, this kind of goose has great potential for production efficiency, and extensive breeding lays eggs 10-20 a year. What kind of geese to raise depends on the combination of production purpose and economic benefit with local natural conditions. If fatty liver and fatty liver sauce are mainly produced, Lionhead Goose, Xupu Goose, French Lande Goose or their hybrid varieties should be raised. If foie gras is specially produced and exported, Rand geese should be mainly raised. If you mainly produce goose meat, you should use hybrid geese.

Source: China Livestock Street, this website, you can find goose breeding technology and disease prevention, and the information is very complete.

If you want to breed hamsters on a large scale, you must first raise its site and have professional breeding knowledge! Look at the specific conditions and documents stipulated by law to raise it. These can be found.

What fish is suitable for large-scale farming? Big welfare? I gave you some detailed information, which I summarized myself. If you want to go to xumuj. It is more convenient in China. Its core technology is pond culture. In China, fish with different living habits, different feeding habits or the same species are found in the same pond. Silver carp and bighead carp live in the upper water, grass carp and bream live in the middle and lower water, and herring, shad, carp, crucian carp and non-crucian carp live in the bottom water. When these different kinds of fish are mixed in the same pond, it can not only increase the stocking amount per unit area of the pond, but also make full use of all kinds of bait resources in the pond because of the different bait needed by various fish, resulting in a mutually beneficial relationship, preventing eutrophication of the water body and improving the production conditions of the pond. Mixed culture of fish of the same species and different specifications can produce large-scale fish species at the same time as edible fish, thus reducing the pond for breeding fish species and expanding the breeding area of edible fish. In a reasonable density range, as long as the water temperature is appropriate, the water quality is good, the proportion of mixed fish and the specifications of fish farming are appropriate, the bait is of high quality and sufficient, and the feeding management is meticulous, the yield will be improved. [Edit this paragraph] Put the fish in turn, that is, put all the fish at once. After a period of feeding, catch some adult fish that meet the commercial specifications in batches, and then supplement the fish quantity appropriately. Using this method, the unit water body in the pond can always maintain an appropriate density, thus improving the fish yield per unit area. [Edit this paragraph] Controlling the color of pool water is the main technical measure of daily management. Good water color, such as bean green and dark brown, is a comprehensive index, indicating that phytoplankton in pond water is cryptophyta and diatom, which are high-quality populations. If these algae form blooms, it means that various nutrients are sufficient, metabolic intermediates are decomposed quickly, and dissolved oxygen is in good condition. In order to make the water color change better, it is necessary to apply fertilizer in time, inject new water and discharge the pool water. The bait is mainly aquatic plants, hay and algae, supplemented by compound bait, oil cake, grain and bran or snails and shellfish. Feeding should be timely, appropriate and timed, so as to check the feeding situation of fish. The purpose of fertilization is to cultivate plankton in the pond, mainly poultry, livestock manure and green manure. Due to the high stocking density of fish in high-yield intensive culture ponds and the large amount of feeding and fertilization, it is easy to lead to the decline of dissolved oxygen and threaten the survival of fish. It is necessary to inject new water or oxygen in time to avoid fish flooding and floating head. [Editor's paragraph] Pond culture is often the main way to comprehensively manage China, integrating livestock and poultry breeding, sericulture and vegetable growing, making full use of agricultural natural resources, agricultural and sideline products and their processing wastes, saving energy, maintaining ecological balance and improving economic benefits. For example, mulberry orchards, sugar cane bases, fruit bases and fish ponds in Guangdong Province all rely on mulberry to raise fish, mulberry leaves to feed silkworms, silkworm excrement and pupae to fertilize mulberry orchards on the banks of fish ponds, so that fish, mulberry and silkworms can grow well, forming a benign artificial composite ecosystem with diversified management that promotes each other between land and water. [Edit this paragraph] Summarize the pond culture recorded in China at the end of Yin Dynasty in BC 1 1 century. Fish Culture in the 5th century BC is the earliest fish culture book in the world. It was very common to raise carp in Han Dynasty. In the Tang Dynasty, the development from single carp to mixed culture of grass carp, herring, silver carp and bighead carp was a major breakthrough in pond culture technology. By the Song Dynasty, it was quite developed to catch the above four kinds of fry from the Yangtze River and raise them, and it was recognized that these fish could not reproduce naturally in ponds. By the Ming Dynasty, advanced fish farming techniques such as timing, positioning, quantitative and qualitative feeding and rotation catching and releasing appeared, and the construction of fish ponds, stocking density and fish species collocation, feeding, fertilization and fish disease treatment were recorded in detail. In the mid-Ming Dynasty (15th and16th centuries), mulberry and fruit trees were planted in fish ponds in the Pearl River Delta, and fish farming, sericulture and crop planting were combined for comprehensive management. Since 1949, pond culture has gradually developed to areas with developed fish culture outside the Yangtze River and Pearl River Delta. After 1958, China successfully studied the artificial propagation techniques of major cultured fish such as silver carp, bighead carp, grass carp, black carp, bream bream and bream bream, which changed the situation that the long-term dependence on fishing natural fry was in short supply. In addition, the promotion of advanced fish farming experience, the prevention and treatment of major fish diseases, and the development and promotion of compound bait have also promoted the expansion of aquaculture area and the increase of yield per unit area. Pond culture in China ranks first in the world in terms of total output, culture area and average output of concentrated contiguous fish ponds. Pond culture has a long history. For example, in medieval monasteries in Central and Western Europe, carp were kept in ponds. At present, the main countries engaged in pond culture in the world are India, Southeast Asian countries, Japan, the Soviet Union and the United States. [Edit this paragraph] Pond conditions High-yield ponds generally have an area of about 10 mu and a water depth of about 2.5 meters. Due to the abundance of plankton and suspended organic matter in high-yield ponds, photosynthetic effective radiation can rarely be transmitted to the water layer below 0.5 meters. Therefore, mechanical oxygenation or fresh water with more dissolved oxygen should be carried out to improve the dissolved oxygen status of near-bottom water and increase stocking quantity and output. Generally speaking, the soil in the pond is sandy loam. The water quality requires slight alkalinity (pH 7 ~ 8.5), hardness 5 ~ 8, transparency about 30 cm, and dissolved oxygen 3 ~ 6 mg/L. Before stocking, excessive silt in the pond should be removed, the bank should be trimmed, and drugs such as quicklime should be used to kill pests and diseases. [Edit this paragraph] The whole production process of feeding technology pond culture in China can be roughly divided into three main stages: artificial propagation of fry (see artificial propagation of fish), fry fingerling cultivation (see fry fingerling cultivation) and edible fish cultivation. The specifications of stocking fish species should be determined according to the better growth stages of different fish species, local climate conditions, aquaculture technology level, yield and economic benefits. Common fish species in China are grass carp 1500 ~ 800g, herring/kloc-500g, silver carp/300g, bighead carp/500g, herring 15 ~ 50g and carp 15 ~ 50g. The key points of aquaculture technology are as follows. Polyculture and intensive culture refers to polyculture and reasonable intensive culture of fish with different habits, different feeding habits or the same species but different specifications in the same pond, which is the core of pond culture technology in China. Silver carp and bighead carp live in the upper water, grass carp and bream live in the middle and lower water, and herring, herring, carp, crucian carp and non-crucian carp live in the bottom water. When these different kinds of fish are mixed in the same pond, compared with a single fish, it can not only increase the stocking amount per unit area of the pond, but also make full use of various bait resources in the pond because of the different types of bait needed by various fish, resulting in a mutually beneficial relationship. Such as herring and carp eat snails, clams and other benthic animals; Grass carp and Megalobrama amblycephala are herbivores, but their ability to digest cellulose is poor. Feces contain a large number of undigested stem and leaf cells, which can fertilize water, cultivate plankton and provide rich suspended organic matter. Silver carp and bighead carp feed on plankton. If these fish are mixed, these bait resources can be fully utilized to prevent eutrophication of water bodies. In addition, carp, crucian carp, herring and non-crucian carp all have the characteristics of feeding on debris. They turn over the pond mud when foraging, which can accelerate the decomposition of organic matter and improve the production conditions of the pond. In polyculture, there are also contradictions among various fish, such as competing for food and occupying living space. Usually, some measures can be taken to avoid or alleviate it, such as controlling the stocking amount of some fish, harvesting some fish in advance, stocking fish of different specifications and so on. Mixed culture of fish of the same species and different specifications can produce large-scale fish species at the same time as edible fish, thus reducing the pond for breeding fish species and expanding the breeding area of edible fish. In a reasonable density range, as long as the water temperature is appropriate, the water quality is good, the proportion of mixed fish and the specifications of stocked fish are appropriate, the bait is of high quality and sufficient, and the feeding management is meticulous. The higher the stocking density, the higher the yield. Due to the differences in climate, fish species and bait resources, various types of polyculture have been formed in China. Silver carp, bighead carp and grass carp are the most common, followed by bighead carp and grass carp, which are more common in the Pearl River Delta. Both herring and grass carp are equally important, and polyculture with herring is more common in Taihu Lake area. Carp is the main species in North China, Northeast China and Northwest China. Release by turns, that is, after feeding for a period of time, catch some adult fish that meet the commercial specifications in batches, and then release them properly. By adopting this method, the unit water body in the pond can always maintain an appropriate density, so as to avoid that the water body can not be fully utilized due to the lack of fish species in the initial stage of stocking, and the growth of fish is inhibited due to the relative shrinkage of the growth and living space of fish in the later stage of breeding, thus obtaining a higher yield per unit area. [Edit this paragraph] Controlling the color of pool water in daily management is one of the main technologies in daily management. Good water color such as bean green and dark brown is a comprehensive index, which reflects that phytoplankton in pond water are mainly cryptophyta, diatom and other algae (mainly flagellate). If these algae form "water bloom", it means that all kinds of nutrients are sufficient, metabolic intermediates are decomposed quickly and dissolved oxygen is in good condition. The control of water color mainly depends on timely and appropriate fertilization, injection of new water and discharge of pool water. The bait is mainly aquatic plants, hay and algae, supplemented by compound bait, oil cake, grain and bran or snails and shellfish. According to the planned fish yield and feed coefficient, the total feeding amount of the whole year can be calculated, and then the fish can be properly fed every day according to different growth stages, feeding intensity and water temperature. The bait should be fresh and high quality. Feeding should be carried out in a fixed place, so as to check the feeding of fish. The purpose of fertilization is to cultivate phytoplankton as bait in ponds. The main types are organic fertilizers, including poultry, livestock manure and green manure, supplemented by chemical fertilizers. In addition, high-yield intensive fish ponds pose a threat to the survival of fish because of their high stocking density, large feeding and fertilization, and easy reduction of dissolved oxygen. For example, when the dissolved oxygen of CYPRINIDAE in China drops to about 1 mg/L, it often breathes on the water surface before and after dawn, which is called "floating head"; If the dissolved oxygen continues to drop to 0.2 ~ 0.5 mg/L, it will start to die, which is called "flooding". Therefore, it is necessary to observe the dynamics of fish ponds frequently, replenish fresh water in time or start the aerator to reduce the degree of floating head and prevent flooding. [Edit this paragraph] Comprehensive management in some areas of China is often based on pond farming, which is integrated with livestock and poultry breeding, sericulture and vegetable planting. Make full use of agricultural natural resources, agricultural and sideline products and their processing wastes, save energy, maintain ecological balance and improve economic benefits. For example, in the long-standing Sangji (sugarcane-based and fruit-based) fish pond in Guangdong, mulberries (bananas or vegetables can also be planted appropriately) are planted on the shore of the fish pond, silkworms are fed with mulberry leaves, fish is raised with silkworm excrement (a mixture of silkworm excrement, residual mulberry leaves, molting and dead silkworm carcasses) and silkworm chrysalis, and mulberries are fertilized with fish manure ponds and pond mud, so that fish, mulberry and silkworm can grow. The combination of fish farming, vegetable growing and pig raising in Hunan, and the combination of fish farming, dairy farming, duck farming and pig raising in Jiangsu are also typical examples of comprehensive management (see figure), which has achieved good economic results.

Can large-scale farming of earthworms get sick? Earthworms rarely get sick, but under harsh environmental conditions, earthworms can also have some diseases. For example, the reproduction of pathogenic bacteria in the body will lead to earthworm refusing to eat and diarrhea. In addition, if protein eats too much feed, protein poisoning will occur, the earthworm's girdle will be red and swollen, and the mucus secretion will increase, and even the earthworm will become black and swollen and die. When earthworms are sick, they often can't eat, can't move on the feeding bed, or have abnormal peristalsis, such as turning around or cramping. As long as you check carefully at ordinary times, it is easy to find sick earthworms. Pick it up and throw it away. ? Prevention and control measures: 1, feed compost fermentation should be thorough, reduce the feed containing more protein; 2. Adding 1% pheasant to the prepared feed or spraying EM stock solution on the feeding bed regularly can achieve good control effect.

How to breed rabbits on a large scale? What rabbits do you have?

How to breed wild small fish on a large scale? yolk

When cooking, take a small piece, wrap it in spun yarn cloth (or use a fishnet with dense eyes), wet it on the water, then gently pinch it outside the fishnet with your hand, and the egg yolk will be broken, then gently shake the gauze on the water a few times to let the broken egg yolk disperse into the water, and the young will start to eat when they see it. Don't eat too much at a time. If it sinks too much, the fry may not eat it, which will affect the water quality. This method is suitable for feeding viviparous fish, such as peacock fish, red arrow, panda, Mary and so on.

Backwater feeding.

In fact, backwater is water rich in paramecium or rotifer, which needs to be cultivated by itself, so I won't say much here. This method is suitable for feeding small spawning fish, such as angelfish and grouper.

Harvest shrimp.

You can buy your own eggs to hatch, or you can directly feed the shelled eggs (the particles are very small, and many fry can be eaten directly, which is convenient and clean). After hatching, the harvested shrimp can be fed immediately, and it will grow into a harvested shrimp with the increase of time, and the slightly larger fry can be fed. This method is suitable for feeding all kinds of fish, with high nutritional value, convenience and hygiene, and is not affected by seasons. Harvest shrimp and hatching method thereof

Larvae of Daphnia.

In other words, small fish worms (cladocera, scratching feet) can be bought from the market and put in water pots, small pots and pet boxes. Wide-mouthed containers are the best, because Daphnia will swim near the water surface to breathe with high oxygen content. If the mouth is small, it may cause suffocation and death. In this way, the newborn white fish can be fished out overnight and fed directly to the young. If you want to raise for a long time, you can add a small amount of nutrient solution (yeast powder) to the container, put it in a bright place, and change some water appropriately, so that you can provide food for the fry for a long time. This method is suitable for feeding viviparous fish, such as guppy, red arrow, Mary and so on.

Crushed feed.

Press the small pellet feed (the one with small particle size and rich nutrition) into foam by hard card, and then sprinkle it directly on the water to feed the young fry. This method is suitable for feeding fry above 1cm.

You can refer to the part of fry and fingerling culture in general aquaculture. Management emphasizes feeding fine-grained feed, high-density breeding, preventing natural enemies, and paying attention to water quality and pests.

The largest farm in Bantouyan Anhui Kaijin Dayan Farm

There is no specific dividing standard for how many chickens a chicken farm keeps. Broilers, laying hens and free-range chickens are raised differently. Generally, more than 50,000 animals belong to large-scale farming, and more than100,000 animals belong to large-scale farming.