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Detailed Explanation of Broodstock Induced Spawning Techniques in Turbot Aquaculture
Turbot is found in sea areas from the Mediterranean to the coast of Norway. In Europe, turbot is a valuable cultured fish species. Over the past 10 years, turbot aquaculture has continued to develop. Turbot aquaculture production increased from 150 tonnes in 1985 to 3,700 tonnes in 1998. In the coastal waters of the Atlantic, natural reproduction of turbot occurs in summer; however, by artificially controlling the photoperiod and water temperature, or by controlling only the photoperiod, turbot may spawn year-round. Turbot spawns in batches, with as many as 10 spawning events during the reproductive period. Under captive conditions,
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What are the causes of copper sulfate-induced fish poisoning?
Copper sulfate is a commonly used drug for treating fish diseases, but because some users are unfamiliar with its properties, it often causes harm. 1 Case reports Case 1: In March 1987, Liantang Aquatic Farm used copper sulfate at 0.7g/m3 to kill algae in a broodstock pond, and three days later all the broodstock died. Water quality analysis showed an ammonia content of 0.35g/L. Case 2: From August 30 to 31, 1999, a 0.67hm2 fattened fry pond with a water depth of 1m owned by a farmer in Bayi Township, Nanchang County, due to sultry weather
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A beginner falls into the pit and runs into chemically-induced variegated succulents, what to do
Preface: Follow the Encyclopedia, meet the beautiful (WeChat ID: duoroubaike). The main text begins: Thanks to the author [Ruo Xi] for the original submission and sharing. Edited and compiled by: Encyclopedia Jun. Location: Zhengzhou, Henan. In April, a new vegetable supermarket opened at the entrance, and passing by the flower stall, my daughter was immediately drawn to the plump and chubby green plants, colorful and crystal clear. The boss only knew that they were all called succulents. Just like that, the nameless succulents were brought home.
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How to prevent stress-induced hemorrhagic disease in fish? Detailed explanation of its incidence characteristics
Incidence characteristics and preventive measures of stress-induced hemorrhagic disease in fish
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How to induce mushroom bud formation in Agaricus blazei cultivation? Detailed methods
How do you induce bud formation in Agaricus blazei? Are there any good methods? Experienced netizens are invited to share their guidance. Zhongdi Web has compiled bud induction methods for Agaricus blazei, listed below for netizens' reference. Method 1, conditions for mushroom bud formation: temperature of 15°C to 22°C, day-night temperature difference of 8°C to 10°C, relative air humidity of 8...
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How to Induce Budding in Bag-Cultivated Shiitake Mushrooms? Key Technical Methods Explained
How to induce budding in bag-cultivated shiitake mushrooms? What should be noted when inducing budding in shiitake mushrooms? Experienced netizens are asked to help explain. When bag-cultivated shiitake mushrooms are induced to fruit by water injection or soaking the bags, the water content inside the mushroom logs becomes too high; some fail to produce mushrooms for a long time after induction, missing the season for cultivating flower shiitake, which affects yield, quality and returns. Zhongdi Network...
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In winter, green feed is scarce and water storage is hindered, so cattle farmers must guard against cold-induced dehydration
In winter, green feed is scarce, so feed-based water storage is hindered; cattle farmers must guard against cold-induced dehydration in winter
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Many Methods to Induce Estrus in Female Rabbits, Rabbit Farmers Come Learn a Few Tricks
Many Tricks to Induce Estrus in Female Rabbits
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Detailed Explanation of Artificial Breeding and Induced Spawning Techniques for Rice Field Eels
Artificial Breeding and Induced Spawning Techniques for Rice Field Eels
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Key Points and Detailed Operation Methods of Loach Induced Spawning Technology
Induced Spawning Technology for Loach
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