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导言与花生饼相比,棉子饼的总氮含量略低一些,但其蛋白质中的几种主要的必需氨基酸如赖氨酸、蛋氨酸和胱氨酸含量却很高。对于非反刍动物来说,棉子饼应当是理想的蛋白饲料。然而,由于棉子饼中含有棉酚,这是一种有毒的天然多酚物质,因而妨障了它在猪、家禽和兔子饲料中的随意使用。其中,猪对棉酚的毒性尤为敏感。猪食用棉子饼后会导致厌食、呼吸困难、体虚消瘦等症状。人们一直在寻找根除或减少棉饼用于非反刍动物饲料中所导致的棉酚中毒现象,他们分别用不同量的蛋白质、不同质量的蛋白质、含铁添加剂,以及用含微量棉酚的无腺棉子饼等做饲料进行试验,取得了不同程度的进展。在尼日利亚,尽管棉子饼产量很高,由于缺乏信息,故未对其用于猪饲料予以注意。本研究报告确立了棉子饼与花生饼相比,用于断奶后幼猪饲料中的有关参数。
INTRODUCTION Cottonseed cakes have a slightly lower total nitrogen content than peanut cakes, but several of their major essential amino acids, such as lysine, methionine and cystine, are high in protein. For non-ruminants, cotton seed cake should be the ideal protein feed. However, since cottonseed cake contains gossypol, a toxic natural polyphenol material, it is a barrier to its use in pigs, poultry and rabbit feeds. Among them, pigs are particularly toxic to gossypol. Pigs eating cotton cake will lead to anorexia, dyspnea, deficiency and other symptoms. People are constantly looking for gossypol poisoning caused by eradication or reduction of cotton cakes for use in non-ruminant diets. They use different amounts of protein, different amounts of protein, iron-containing additives, and glands with gossypol Cotton cake and other feed to do the experiment, made different degrees of progress. In Nigeria, despite its high yield of cotton cakes, it is not aware of its use in pig feed due to lack of information. This study established the relative parameters of cottonseed cake compared with peanut cake for weaning piglets.