It is very important to master the amount of shrimp cultured in ponds, which is an important basis for calculating the amount of bait during cultivation. In addition to estimating the number of takeoffs in production, there are several methods of measurement. First, rotary screen counting method. According to the aquaculture pond topography, landforms and shrimp distribution area for sampling, to obtain the average number of shrimp per net, converted into the number of shrimp per square meter, multiplied by the total surface area of ​​the breeding pond (square meters), and then multiplied by the economic coefficient , you can also calculate the total number of shrimp in the pool. Swivel nets should be small enough to keep shrimp from running out. The formula is as follows: Total number of shrimps in the pond (tail) = Average number of shrimp per net (tail)/Split net area (square meters) Aquaculture pond area (square meters) Economic coefficient. The economic coefficient is the quotient obtained by dividing the total number of shrimp obtained by counting the spinning nets by the total number of shrimps actually collected. This method is more accurate, but it should be taken into consideration that as the depth of water increases, the network port gradually decreases. The rotary screen counting method is suitable for shrimps such as Oriental shrimp. Second, the sign counting method. Take a certain amount of shrimp, cut off part of the tail fan as a sign, and put it back into the original pond. After 1 to 2 days, randomly sample and use the following formula to estimate the total number of shrimp in the pond: Total number of shrimp in the pond (tail) = average sampling shrimp Numbers (tails) The total number of shrimps in the pool (tail)/The number of flag shrimps in the average sampling (tail) The accuracy of this method increases with the number of marked shrimps and the number of post-marking samples. In general, the number of flag shrimp should be 1% of the estimated number, and the number of flag shrimp recaptured should be more than 10% of the total number of marks. Third, trawl quantitative counting method. Using a trawl net with a mouth width of 2 meters and dragging it from one side of the pond to the opposite side, the number of shrimp caught is multiplied by the ratio of the pond area to the trawl area to find the number of shrimp in the whole pond. Obviously this method only Suitable for small pond with flat bottom.
Feed Enzymes preparation is a kind of feed additive which can improve the digestion, utilization, or improvement of animal metabolism to animal feed. As a new type of high efficiency feed additive, enzyme preparation provides an effective way to open up new feed resources, reduce feed production costs, and reduce pollution of livestock and poultry excreta. The compound enzyme preparation is more used in the production of feed industry because of the complexity of feed material structure. A compound enzyme preparation is a product containing 2 or more than 2 single enzymes. Feed enzymes provide guarantee and support for the sustainable development of the feed industry and the breeding industry.
Sunson Group supplys Phytase, Cellulase, Xylanase, Mannanase, Protease, Alpha Amylase, Glucoamylase, Beta glucanase, Complex Enzymes for poultry, swine and ruminants.
Benefits:
Promote the digestion of livestock
Reduce costs of feed
Increase the yield of livestock products
This product should be stored in a cool and dry place in sealed container, avoiding insolation, high temperature and damp. The product has been formulated for optimal stability. Extended storage or adverse conditions such as higher temperature or higher humidity may lead to a higher dosage requirement.
Enzyme preparations are proteins, which may induce sensitization and cause allergic type reactions in sensitized individuals. Prolonged contact may cause minor irritation for skin, eyes or nasal mucosa, so any direct contiguity with human body should be avoided. If irritation or allergic response for skin or eyes develops, consult a doctor.
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Sunson Industry Group Co., Ltd , http://www.sunsonchinaenzymes.com