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一般认为,由于棉酚对生理有不利影响,又具有粘合之特性,可降低生物对赖氨酸的吸收能力,故以有壳棉籽粉作陆栖单胃动物饲料配方的使用价值降低了。但由于鱼用饲料的蛋白质含量高,故鱼比其它单胃动物能承受饲料中较高的棉酚含量。饲料中的醋酸棉酚含量增加至250ppm(Roehm 等,1967),并未影响虹鳟的生长。Fowler(1980)报道,分别投喂34%和22%的经溶剂提取过的有壳棉籽粉对大鳞大马哈鱼和银大马哈鱼的生长无不利影响。最近 Dorsa 等(1982)报道,对
It is generally considered that the use value of crustacean cotton as a feed formulation for terrestrial monogastric animals is reduced because gossypol has a negative physiological effect on physiology and also has the property of binding to reduce the bioavailability of lysine. However, because of the high protein content of fish feeds, fish tolerate the higher gossypol content of feed than other monogastric animals. The gossypol acetate content in the feed increased to 250 ppm (Roehm et al., 1967) without affecting the growth of rainbow trout. Fowler (1980) reported that 34% and 22% solvent-extracted shelled cottonseed meal, respectively, had no adverse effect on the growth of salmon and salmon. Recently Dorsa et al. (1982) reported that