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How to Feed Laying Ducks During the Laying Period? A Detailed Guide to Scientific Feeding Methods
Feeding laying ducks during the laying period is crucial. How can you make the most of the laying period of laying ducks? Below we offer some experience. Because of continuous egg production, the nutrients consumed are especially high. For example, if one egg is laid daily and the egg weight is calculated at 65g, then crude protein
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Key Technical Points for Feeding and Management of Laying Hens During the Laying Period
The first laying cycle of egg-type chicken breeds is about 1 year, and the whole process can be divided into three stages: early laying period, peak period and late laying period. The coordinate curve plotted based on the average weekly laying rate during the laying period (the vertical axis indicates the laying rate, and the horizontal axis indicates age in weeks) is called
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How to manage pheasants during the brooding period? Keep these precautions in mind
The pheasant, also known as the common pheasant, rainbow pheasant, mountain pheasant, etc., is a valuable wild game bird combining meat, ornamental and medicinal uses: Food value: pheasant meat is tender and delicious, with a strong game flavor; its protein content is as high as 40%, 2.5 times that of ordinary chicken and pork, and its fat content is only
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How to raise wild ducks during the growing period? These key points you need to know
Wild ducks are a lean-meat type of poultry, with delicious and tender meat, high protein content, and high nutritional value, and market demand is constantly increasing. In recent years, various processed wild duck products have continuously appeared, such as salted wild duck and osmanthus wild duck, which have always sold well, not only
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How to raise wild ducks during the growing stage? A detailed explanation of the key points
The wild duck is a typical representative of waterfowl; the wild duck is the common name of the mallard in the Northern Hemisphere. The wild duck belongs to the class Aves, order Anseriformes, family Anatidae; it is very numerous and is a general name for many kinds of wild ducks, with more than ten species. Wild ducks can make long-distance migratory flights,
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Key Technical Points for Free-Range Mountain Rearing of Native Chickens
The native chicken is a type of poultry. It differs from caged broiler chickens. Among them, free-range native chickens raised on hillsides are the best; the rooster has a large red comb and is fierce and combative, while the hen's comb is extremely small. Native chickens are also called caoji or benji, referring to meat chickens raised freely in mountain forests, woodlands, and orchards. They are tolerant of coarse feed
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How Turtles Overwinter and Key Points for Keeping Them
In a broad sense, "turtle" refers to the collective term for the order Testudines; in a narrow sense, it refers to species under the family Emydidae. The Chinese pond turtle (Chinemys reevesii) is also known as the golden turtle, grass turtle, mud turtle and mountain turtle. In animal taxonomy it belongs to the class Reptilia, order Testudines, family Emydidae, and is one of the common Testudines animals.
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How to Do a Good Job in Overwintering and Seed Stock Preservation for Tilapia in Earthen Pond Aquaculture
Tilapia, commonly known as: African crucian carp, non-crucian, Vietnamese fish, Nanyang crucian, etc. It originally referred to the fish species of the genus Oreochromis with Mozambique as the type locality: Mozambique mouthbrooder (scientific name: Oreochromis mossambicus). It is now the collective common name for several fish species of the genera Oreochromis and Sarotherodon in the family Cichlidae; in English they are collectively called Tilapia. It is now a freshwater aquaculture fish that is a key research and breeding target of the world's aquaculture industry, and is hailed as one of the main future sources of animal protein. It usually lives in freshwater, can also live in salt water with different salinity levels, and can also survive in shallow water in lakes, rivers, and ponds. It has strong adaptability, can reproduce even in small water areas, can even grow in rice fields, and has extremely strong adaptability to water with low dissolved oxygen. The vast majority of tilapia are omnivorous, often eating aquatic plants and debris.</p><p></p><p>There are many methods for overwintering and seed stock preservation of tilapia, but some are limited by resource conditions, with no hot springs or no warm drainage, and some have complex equipment and high investment. In order to explore a mass-oriented seed stock preservation method with low investment and simple equipment. Its main facilities and techniques are: </p><p>1. Construction of the overwintering pond: The tilapia overwintering pond should be built in a low-lying area that is sheltered from the wind and faces the sun, close to a river. In a place with solid soil, dig an earthen pond 4 m to 5 m long, 1 m to 2 m wide, and 2 m to 3 m deep. Water from the river channel can gradually seep into the earthen pond through the gaps in the soil layer, keeping the pond water fresh and the oxygen content sufficient. </p><p>2. Heat preservation facilities: Build a bamboo frame on the pond surface sloping toward the south, and cover the bamboo frame with two layers of plastic film, like a greenhouse for growing vegetable seedlings. The height between the pond surface and the film should be kept at about 0.1 m to 0.8 m; if the space is too large, it is not easy to keep warm. When the northwest wind blows, windbreak walls made of reeds or straw curtains should be made on the west and north sides of the overwintering pond. In frost and snow weather, straw curtains should be added over the film. If a cold wave invades and the temperature drops, 2 to 4 electric lights of 100 W to 200 W should be hung inside the plastic shed to raise the water temperature. In short, the pond water temperature should be kept at around 15°C to 16°C so that the fingerlings can safely pass the winter. </p><p>3. Putting fingerlings into the pond: Before the fingerlings are put into the pond, the overwintering pond should be filled with water and soaked for 3 days to 5 days to eliminate the effect of pollutants on the pond water. The time for putting fingerlings into the pond is generally in early November, and the water temperature should preferably be around 16°C; if too late, they are prone to cold damage. Before the fingerlings are put into the pond, they should be soaked in 4% salt water for 3 minutes to 5 minutes to disinfect the fish body and prevent infectious diseases. The density of fingerlings is 5 kg to 7.5 kg per cubic meter. </p><p>4. Overwintering management: During the entire overwintering period, specially assigned personnel should be on duty for management. At the same time, attention should be paid to changes in water temperature, changes in water quality, and the dynamics of the fish. </p><p>(1) Feeding: During the overwintering period, a small amount of feeding may be done, generally once every 10 days to 15 days, with the feeding amount at about 1% of the weight of the overwintering fingerlings, but when the water temperature exceeds 16°C, they can be fed once a day. Feed includes sugar dregs, rapeseed cake, etc. It should also be flexibly controlled according to the feeding situation so that the fish eat enough and eat well, in order to increase the overwintering survival rate and reduce losses.</p><p>(2) Lighting: Throughout the winter, as long as it is sunny, remove the straw curtains covering the heat preservation shed from 9:00 to 15:00 to let in light and raise the temperature. On snowy days, the snow on the frame should be swept off promptly to prevent the frame from being crushed and collapsing.</p><p>(3) Prevention and treatment of fish diseases: The overwintering period of tilapia is relatively long, and attention should be paid to observing whether there is fish disease. Once discovered, it should be treated promptly. During the overwintering period, saprolegniasis is the most common, mostly occurring after entering the pond and before leaving the pond. Saprolegniasis is a common disease caused by the attachment of fungi such as Saprolegnia and Pythium. With the naked eye, a grayish-white, soft, cotton-wool-like substance attached to the fish body can be observed. Injured fish bodies are highly susceptible to infection, and it occurs more frequently in winter and early spring. For treatment, alkaline green at a concentration of 0.1 mg to 0.2 mg/L or a copper sulfate solution at a concentration of 1 mg/L can be splashed over the whole pond, and it is effective. If pond oxygen deficiency occurs and fish gasp at the surface, more fresh water can be exchanged. </p>
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Methods and Technical Points for Rearing Black Carp Fry and Fingerlings in Ponds
The black carp is a fish with a bluish-black color, mainly distributed in the plains south of the Yangtze River in China, and relatively scarce north of the Yangtze River; it is an important fishery resource in the middle and lower reaches of the Yangtze River and the lakes along the river, and a major culture species in various lakes and ponds. It is one of the "Four Major Chinese Carps" of freshwater aquaculture in China.
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How to raise dung beetles artificially? Detailed explanation of methods and technical key points
The dung beetle is also called shi ke lang, and many people also call it shi ge (g) lang, tui wan, etc. It belongs to the order Coleoptera, family Scarabaeidae, subfamily Scarabaeinae. There are about 2300 species of dung beetles in the world, distributed on every continent except Antarctica. Dung beetles can use the polarization of moonlight to navigate
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