肌醇是水產(chǎn)動(dòng)物必需的營養(yǎng)物質(zhì),對(duì)維持其正常的生理功能有著重要的作用。肌醇通常作為營養(yǎng)強(qiáng)化劑添加到魚類和甲殼類水產(chǎn)動(dòng)物的飼料中,以促進(jìn)水產(chǎn)動(dòng)物的生長(zhǎng)。水產(chǎn)動(dòng)物肌醇攝入不足時(shí),會(huì)造成食欲不振、生長(zhǎng)阻滯、飼料轉(zhuǎn)化率低、背鰭斷裂、脂肪肝綜合癥、腹?jié)q等癥狀。文華等研究了草魚幼魚肌醇的需要量,結(jié)果表明,飼料中肌醇添加量為166~214 mg/kg 對(duì)草魚生長(zhǎng)有較好的促進(jìn)作用。黃忠等[20]研究表明,在卵形鯧鲹飼料中添加不同含量肌醇時(shí),飼喂56 d,發(fā)現(xiàn)當(dāng)添加量為720 mg/kg 時(shí),魚的增長(zhǎng)率和特定生長(zhǎng)率顯著高于其他添加量組,同時(shí)研究還表明,添加肌醇能顯著降低血液中甘油三酯濃度。Levine 等研究發(fā)現(xiàn),在金魚飼料中添加肌醇,可提高金魚的游動(dòng)能力。Shi等在羅非魚幼魚的飼料中添加肌醇發(fā)現(xiàn),當(dāng)添加量為350 mg/kg 時(shí),羅非魚的生長(zhǎng)速度顯著高于其他組。肌醇對(duì)蝦類、蟹類等甲殼類水產(chǎn)動(dòng)物的生長(zhǎng)也有較好促進(jìn)作用。Shi 等以草蝦的幼蝦為研究對(duì)象,在飼料中添加不同水平的肌醇,飼養(yǎng)8 周后發(fā)現(xiàn),添加4000mg/kg 肌醇的試驗(yàn)組草蝦增長(zhǎng)最快,且飼料中蛋白質(zhì)利用率最高。林仕梅等[研究了不同水平肌醇添加量對(duì)中華絨螯蟹生長(zhǎng)的影響,發(fā)現(xiàn)添加量為400 mg/kg 時(shí),中華絨螯蟹生長(zhǎng)速度最快。
Inositol is a kind of **-soluble vitamin B, which plays a positive role in promoting the growth of animals. It can enhance the appetite of animals, promote cell metabolism and prevent death. As a food additive (GB 14880), it has been used for decades. As a nutritional fortifier, it is used to make milk powder (including seasoning milk powder), fruit and vegetable juice beverage and flavor beverage. Currently, the world's inositol is 15000 tons, with an average annual growth rate of 6.5% (60% of the market is in developed countries in Europe and America).