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National Aquaculture Disease Forecast in October 2016

National Aquaculture Disease Forecast in October 2016

Abstract: In October, the national temperature gradually dropped, fishery production into the late management. Breeds that need to overwinter in the northern region should make timely preparations before winter and strengthen the intensive cultivation of overwintering seedlings. In most parts of the south, it is still a good growth period for cultured breeds. Attention should be paid to the impact on aquaculture animals when catching and pulling nets in batches to avoid diseases caused by mechanical damage. According to the national aquaculture disease monitoring data in the same period in the past three years, the following diseases should be paid attention to in October. 1. focus on diseases 1. Infectious hematopoietic necrosis disease: the main harm rainbow trout, the onset of water temperature of 8 ℃ -1

Key words:

03

2018/04

Application of Jiedu Hushuibao (Sodium Thiosulfate) in Aquaculture

Application of Jiedu Hushuibao (Sodium Thiosulfate) in Aquaculture

1. the physical and chemical properties of sodium thiosulfate sodium thiosulfate, also known as sodium sulfite, soda, sea wave. It is a colorless and transparent monoclinic crystal, odorless, salty, 1.729 specific gravity, soluble in water, water solution near neutral insoluble in alcohol, in acidic solution decomposition, with reduction, can dissolve halogen and silver salt. It is easy to be weathered in dry air above 33 ℃ and deliquescence in humid air. Sodium thiosulfate can be used for tanning leather and extracting silver from ore; sodium thiosulfate can also be used to remove chlorine from tap water and is widely used in aquaculture because sodium thiosulfate is extremely toxic to fish. Theory

Key words:

03

2018/04

National Aquaculture Disease Forecast in October 2016

National Aquaculture Disease Forecast in October 2016

Abstract: In October, the national temperature gradually dropped, fishery production into the late management. Breeds that need to overwinter in the northern region should make timely preparations before winter and strengthen the intensive cultivation of overwintering seedlings. In most parts of the south, it is still a good growth period for cultured breeds. Attention should be paid to the impact on aquaculture animals when catching and pulling nets in batches to avoid diseases caused by mechanical damage. According to the national aquaculture disease monitoring data in the same period in the past three years, the following diseases should be paid attention to in October. 1. focus on diseases 1. Infectious hematopoietic necrosis disease: the main harm rainbow trout, the onset of water temperature of 8 ℃ -1

Key words:

03

2018/04

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