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Prevention and Control Methods for Microsporidiosis in Farmed Shrimp
(1) Pathogen In China, 3 species have been found: Ameson on the bodies of Chinese shrimp (Penaeus chinensis) and banana prawn (Penaeus merguiensis), Agmasoma on the body of banana prawn, and Pleistophora on the body of white shrimp (Penaeus penicillatus). The spores are slightly oval or pear-shaped, with a length of 2 to
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Common Abnormal Phenomena in Whiteleg Shrimp Farming and Their Management
Abnormal phenomenon 1: Before stocking, the pond water cannot be fertilized despite repeated fertilization, or the water color is very poor. (1) Causes: Serious exceedance of toxic substances such as heavy metal ions, or massive reproduction of harmful bacteria and zooplankton in the pond, or growth of filamentous algae and blue-green algae (qingni moss) in the pond,
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Sharing Experience in Northern River Crab Farming Management
The scientific name of the river crab is Chinese mitten crab (Eriocheir sinensis). Its flesh is delicious and nutritious, and it has certain medicinal value. Domestic market demand is large, economic returns are considerable, and farming prospects are broad. But we all know that the weather in the north in winter is much colder than in the south, so
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Detailed Explanation of Key Points of Artificial Breeding Technology in Forest Frog Farming
As the scale of forest frog farming continues to expand, the demand for forest frog fry grows ever greater, and relying solely on transplanting natural forest frog fertilized egg clusters and tadpoles can no longer meet the needs of farming. To ensure the timely supply of excellent
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Sharing Spring Breeding Experience in Toad Farming
When you start farming toads, you can catch adult toads from the wild around Qingming each year to keep as breeding toads. After they emerge from hibernation each spring, the breeding toads call frequently and males and females begin amplexus behavior. At this time, male and female toads should be paired promptly in a ratio of 1:2-3 and moved into
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How to prevent and treat tilapia-like "head-tilting disease" in American bullfrogs? Farmers need to master these methods
In recent years, because American bullfrogs are very popular on the public dining table, the number of farmers raising American bullfrogs has gradually increased. American bullfrog farming has become a new species in aquaculture, and during the farming process, some diseases often appear, with head-tilting disease being one of the common
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Measures for Promoting Fattening of Grass Carp in Autumn Farming
Autumn is the peak season for grass carp to put on weight. Doing a good job of feeding during this period can increase production by about 30% compared with normal management. Specifically, the following measures should be carried out well: 1. Regulate water quality, add new water to increase oxygen. First, add new water to increase the dissolved oxygen content in the water. Generally, add new water
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Key Technical Points for Fingerling Rearing in Carp Farming
Summer fry fingerlings must be selected from those that are disease-free and uninjured, robust in constitution, lively in movement, and uniform in size. Fingerling rearing generally adopts mixed culture of 2 to 3 species of fish, but with one species as the main one. In a pond with carp as the main cultured fish, stock 6,000 to 8,000 summer fry per 667 sq m, combined
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Ten Key Points to Note in Meat Dog Farming
(1) Farm according to consumption habits. Dog meat sales are greatly affected by season, with strong seasonal consumption, and market demand also differs among different regions. On the one hand, because the habit of eating dog meat in winter for "hot nourishment" is popular in most parts of our country, while sales in spring, summer and autumn are small, causing large stockpiles of meat dogs and increasing farming costs. On the other hand, influenced by ethnic customs, many places do not have the habit of eating dog meat, so consumer demand is limited, and the dog meat market still needs further guidance.
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Several Trace Elements Affecting Reproductive Performance in Wild Boar Farming
1. Vitamin E Vitamin E, also known as tocopherol, is closely related to animal reproductive performance and has effects such as promoting gonad and ovary development, facilitating conception, and preventing miscarriage. VE deficiency will cause reproductive dysfunction, failure to come into estrus or delayed estrus, infertility, miscarriage, stillbirth
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