11 results about "Growth speed" patented technology

The invention discloses a mushroom cultivating material which is characterized in that bamboo sawdust, bamboo shells and biogas residues are used as raw materials, and the water content of the cultivating material is 62-65%. The invention also provides a manufacturing method of the cultivating material. Compared with the prior art, the mushroom cultivating material has the advantages that firstly, the cultivating material is reasonable in proportion, and a fungous material keeps certain air permeability, so that the growth speed of mycelia is increased, and the sackful time is shortened; secondly, bamboo sawdust particles are hard in texture and resistant to decomposition, and the biogas residues contains comprehensive nutrients including nitrogen, phosphorus and potassium, so that the growth of mushroom is promoted, the yield of a product is increased, and the quality of the product is improved; and thirdly, wood is replaced with bamboos and bran is replaced with the biogas residues, so that the source of a cultivating raw material is widened, and the production cost is reduced. The mushroom cultivating material has the social benefits that wood dust is replaced with the bamboo sawdust and the bamboo shells, so that part of contradiction between a fungus and forestry can be alleviated, waste materials can be changed into things of value, and energy conservation and emission reduction can be favorably realized.

The invention relates to a stichopus japonicus powder feed and a processing method thereof and belongs to the technical field of feeds and processing methods thereof. The stichopus japonicus powder feed is characterized by comprising the following ingredients by weight percent: 30-50% of degummed kelp dry powder, 10-20% of sargassum thunbergii dry powder, 15-25% of gulfweed dry powder, 8-13% of perforated sea lettuce dry powder, 5-12% of fish powder, 4-8% of yeast powder and 1-3% of complex vitamin. The processing flow comprises the following steps: collecting raw materials, degumming kelp, drying the raw materials, mixing the raw materials, performing coarse crushing, mixing with the fish powder and stirring, performing superfine crushing and packaging. Nutritional ingredients in the stichopus japonicus powder feed are good in stability, the growth speed and cultivation survival rate of stichopus japonicus can be effectively improved, the growth speed obtained by adopting the stichopus japonicus powder feed is faster than that obtained by adopting other types of the feed by 1.5-2.0 times, the survival rate is high, the weight-increasing rate is fast, and the production efficiencyof cultivation of the stichopus japonicus is greatly improved. Simultaneously, the pollution on a cultivation water body is reduced, and the growth speed of the stichopus japonicus is improved.

The invention discloses a feed for squaliobarbus curriculus. The feed comprises, by weight, 6.8 to 12.6% of corn, 5.4 to 8.5% of rice bran, 5.4 to 8.5% of wheat bran, 5.4 to 12.6% of wheat middling, 12.6 to 20.8% of fish meal, 41.2 to 50.4% of a bean cake, 2% of a mineral matter mixed salt and 1 to 1.5% of a compound premix for freshwater fish; the feed is prepared by mixing the above-mentioned components, and the protein content of the feed is 29 to 34%. The feed is prepared based on different nutritional requirements of squaliobarbus curriculus in each growth stage, meets nutritional requirements of squaliobarbus curriculus in each growth stage and promotes the growth speed, quality and gonadal development of squaliobarbus curriculus while guaranteeing nutrients needed by squaliobarbus curriculus every day; moreover, a formula for the feed is reasonable, varieties of the raw materials of the feed are simple, and the raw materials are convenient to purchase and manage and facilitate preparation of the feed; and the feed has the advantages of comprehensive nutrients, high cost performance, substantial conservation of cost and increase of the income of aquarists.

The invention discloses a method for comprehensively adjusting and controlling florescence in seed production of cauliflower by hybridization, pertaining to the technical field of seed production of crops by hybridization. The method comprises the steps of (1) selecting planting areas, (2) selecting seeding time, (3) physical control and (4) chemical control. In the method of seed production by hybridization of the invention, early seasonal, middle seasonal and serotinous cauliflower varieties are selected respectively according to different elevations of 1000m, 1200m and 1400m and different seeding time of July, August and September; different fur cutting and ball cutting treatments and water and fertilizer control are adopted according to the growth speed of the ball flowers; technical measures such as spraying with GA with the concentration of 30ppm or Kaihuajin solution with the concentration of 500 times are applied to the varieties that are slow in blooming and bolting in the same group after the ball cutting is applied to the varieties. The method of the invention can ensure that the respective florescence of parents is staggered within 20 days in the seed production of crossbred F1 of the matched early seasonal, middle seasonal and serotinous cauliflowers and can ensure the connecting of the florescence by means of artificial regulation, and the yield of the seed production is 41.7 kg/mu higher than that of the inexperimental group.

The invention relates to a selective separation medium for caprine mycoplasmal pneumonia subspecies and a preparation method of the selective separation medium, and belongs to the technical field of veterinary biology. The selective separation medium is prepared from components as follows: lactoalbumin hydrolysate, yeast extract powder, glucose, an MEM medium, a PPLO (pleuropneumonia-like organism) gravy powder, sodium pyruvate, a 1% phenol red solution, specific growth inhibition serum and deionized water. The preparation method comprises steps as follows: the lactoalbumin hydrolysate, the yeast extract powder, glucose, the MEM medium, the PPLO gravy powder, sodium pyruvate and the 1% phenol red solution are weighed in proportion and dissolved in the deionized water. Before use, healthy horse serum and the specific growth inhibition serum are added. The selective separation medium for the caprine mycoplasmal pneumonia subspecies is used for clinically separating and cultivating the caprine mycoplasmal pneumonia subspecies, increases the growth speed of mycoplasma in a separation process and increases the separation rate of the caprine mycoplasmal pneumonia subspecies, and the separation rate is 80% or higher.