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ease water, oxygen, increase fertility of silt. Improve the quality of pond culture products, increasing economic benefits. 2池塘消毒。在冬季捕魚后,將塘水排干,挖去一層污泥,然后讓陽光曝曬,可達(dá)到清除蟲害的目的。生石灰清塘:在池塘修整后,選擇晴天進(jìn)行生石灰清塘,將干粉均勻干撤到塘底或池底及塘基上,再故入4-6厘米清水,次日用長柄耙將池底淤泥和石灰漿調(diào)勻,發(fā)揮生石灰的殺毒作用。為了保證水產(chǎn)養(yǎng)殖系統(tǒng)的安全性和可靠性,可以利用質(zhì)量平衡原理進(jìn)行設(shè)計(jì)。投放光合細(xì)菌要注意:多菌種混合比單菌種投喂好;有機(jī)物腐敗程度越高、污染越嚴(yán)重的池底投放效果越好;可與麥飯石、沸石等合用,效果更佳;不能與消毒劑合用,以免被殺死。 Can39。而且魚類的肉質(zhì)鮮美,市場價(jià)格高。夏季可在魚池距水面20厘米處安裝60瓦燈泡誘蟲入池,大力推行采用價(jià)廉的餅類和糠麩等,替代或少用價(jià)高的魚粉,豆粕等配料,這樣可大幅降低餌料成本。3添加腐植酸。按國家農(nóng)業(yè)部頒布實(shí)施的《無公害食品漁用藥物使用準(zhǔn)則》的規(guī)定執(zhí)行,嚴(yán)禁使用磺胺脒、呋喃西林、痢特靈、氯霉素、紅霉素、環(huán)丙沙星等抗生素作餌料添加劑或水體防病劑。Feed costs accounted for about 60% of the fish cost of above monly, wide monarch feed source, reduce feed costs, save money is the key to improving economic efficiency of fish farming. 1 to take advantage of youth generation, planting grass pond, bunds wasteland, use duckweed, ditches, such as water or collect the tender grass weeds to feed the fish, can save the concentrate. Summer can install in the fish pond 20 centimeters from the surface of the water 60watt bulb trap into the pool, and vigorously promote using cheap bread and bran etc, replace or less with the high price of fish meal, soybean meal and other ingredients, which can greatly reduce the feed cost. Practice proved in rapeseed meal, blood meal, etc as main raw materials, adding suitable amount of grease, match into the bait of vitamins, minerals, nutrients can reach the demand for fish, fish farming efficiency is better. 2 bait in the appropriate increase the vitamin C content. Vitamin C can prevent toxic residues in fish body lifting method is simple. Rapid. Accurate function sensitive to remove toxic substances. 3 add humic acid. Humic acid is farmed animals green feed additives. Chinese academy of agricultural sciences39。也可多次放養(yǎng)大規(guī)格魚種,捕大補(bǔ)小。如有的養(yǎng)殖戶同一口池塘上半年養(yǎng)南美白對(duì)蝦,下半年養(yǎng)鯉魚,既提高了經(jīng)濟(jì)效益,又減少了病害的發(fā)生,效果好,值得借鑒。綜合分析魚病的發(fā)生原因,采取相應(yīng)的對(duì)策,實(shí)行魚病綜合防治是提高養(yǎng)殖效益的必要措施。In recent years, explosive fish disease to a great extent, restricts the development of fishery production. Some fish at ordinary times didn39。 Pay attention to keep the water clean, the enhancement of the fish body resistance. In addition with rhubarb, Chinese gall, garlic, purslane, etc. Chinese medicine is effective for prevention and treatment of fish diseases. 總之,水產(chǎn)養(yǎng)殖是一項(xiàng)復(fù)雜且系統(tǒng)的工程,它涉及到多方面的問題,因此只有加強(qiáng)理論指導(dǎo)和技術(shù)創(chuàng)新,才能實(shí)現(xiàn)水產(chǎn)養(yǎng)殖的經(jīng)濟(jì)效益和社會(huì)效益。 Species range strictly sterilized before。魚池應(yīng)徹底用藥物清塘;魚種放養(yǎng)前嚴(yán)格消毒;魚發(fā)病季節(jié)定期用藥物預(yù)防;注意保持水質(zhì)的清潔,增強(qiáng)魚體的抵抗力。Four, s