Bean L D, Leeson S
Department of Poultry Science, University of Guelph, Guelph, Ontario N1G 2W1 Canada.
Poult Sci. 2003 Mar;82(3):388-94. doi: 10.1093/ps/82.3.388.
Two hundred fifty-six 18-wk-old Shaver White and ISA-Brown pullets were fed commercial diets containing either 0 or 10% flaxseed in order to study the long-term effects of feeding flaxseed on hen performance and egg production parameters. Performance was monitored over 10 consecutive 28-d periods. Flaxseed was introduced gradually at 28 wk of age and was maintained until hens were 53 wk of age, when flaxseed was gradually eliminated from the diet. Feed intake was less (P < 0.05) for hens fed flaxseed compared to those consuming the control diet. Flax-fed hens were also lighter (P < 0.05) compared to the control birds. Egg production, egg weight, shell weight, albumen height, and shell thickness were not significantly (P > 0.05) different for hens consuming 0 and 10% flaxseed; however, yolk weight was reduced (P < 0.05) in hens fed flaxseed. Both strains of birds fed flaxseed deposited significantly more n-3 fatty acids into their eggs. Sampling of livers at the end of the trial showed that hens fed flaxseed had a higher (P < 0.05) incidence of liver hemorrhages.
256只18周龄的沙弗白鸡和ISA - 褐壳蛋鸡被喂食含有0%或10%亚麻籽的商业日粮，以研究饲喂亚麻籽对母鸡生产性能和产蛋参数的长期影响。在连续10个28天的周期内监测生产性能。亚麻籽在28周龄时逐渐引入，并一直持续到母鸡53周龄，此时亚麻籽从日粮中逐渐剔除。与食用对照日粮的母鸡相比，饲喂亚麻籽的母鸡采食量较少（P < 0.05）。与对照鸡相比，饲喂亚麻籽的母鸡体重也较轻（P < 0.05）。食用0%和10%亚麻籽的母鸡在产蛋量、蛋重、蛋壳重、蛋白高度和蛋壳厚度方面没有显著差异（P > 0.05）；然而，饲喂亚麻籽的母鸡蛋黄重量有所降低（P < 0.05）。两种饲喂亚麻籽的鸡在其鸡蛋中沉积的n - 3脂肪酸都显著更多。试验结束时对肝脏进行采样显示，饲喂亚麻籽的母鸡肝脏出血发生率更高（P < 0.05）。
