Allen P C, Danforth H D, Levander O A
USDA, Agricultural Research Service, Livestock and Poultry Sciences Institute, Beltsville, Maryland 20705, USA.
Poult Sci. 1996 Feb;75(2):179-85. doi: 10.3382/ps.0750179.
Four experiments were run in which diets incorporating various levels of n-3 fatty acids (n-3FA) from fish (menhaden) oil or flax seed were tested for their abilities to reduce the severity of Eimeria tenella infections in young broiler chicks. The diets were fed from 1 d of age through 3 wk of age. Chickens were infected at 2 wk of age. Diets consisting of broiler starter ration supplemented with 2.5 to 10% fish oil, 10% flax seed oil, or 10% linseed oil significantly decreased cecal lesions and maintained weight gains as compared to unsupplemented diets. Light micrographs of ceca from chickens that consumed high n-3FA diets showed reduced parasite invasion and development. Short-term feeding of diets high in n-3FA to young chicks may be a practical method for reducing production losses from cecal coccidiosis.
进行了四项实验，测试了含有不同水平来自鱼油（鲱鱼油）或亚麻籽的n-3脂肪酸（n-3FA）的日粮对降低雏鸡柔嫩艾美耳球虫感染严重程度的能力。日粮从1日龄开始饲喂至3周龄。鸡在2周龄时感染。与未添加日粮相比，由添加2.5%至10%鱼油、10%亚麻籽油或10%亚麻籽的肉鸡开食料组成的日粮显著减少了盲肠病变并维持了体重增加。食用高n-3FA日粮的鸡的盲肠组织光镜照片显示寄生虫入侵和发育减少。对幼雏短期饲喂高n-3FA日粮可能是减少盲肠球虫病造成生产损失的一种实用方法。
